JP7843102B2 - Aerosol generating apparatus, control method, and program - Google Patents

Description

This invention relates to an aerosol generating apparatus, a control method, and a program.

An aerosol generating device (hereinafter referred to as "aerosol generating device") generates aerosols by heating an aerosol source containing fragrances, etc.
Aerosol sources can include, for example, two types: liquids and solids. In the former case, the aerosol source, which is induced within a glass fiber called a wick, is heated by a heater to generate the aerosol. In the latter case, the aerosol source, which is filled into a paper tube or capsule, is heated by a heater to generate the aerosol.

Special table 2021-509260 publication

Aerosol generators capable of accommodating both liquid and solid aerosol sources may have separate heaters for the liquid and solid aerosol sources, with a device that controls the power supply to each heater at different times. For example, when power is supplied to the heater for the liquid aerosol source, there may be a device that controls the power supply so that power is not supplied to the heater for the solid aerosol source.

Incidentally, the power supply to the heater for heating the liquid aerosol source is sometimes linked to the user's inhalation of the aerosol. In this control, if the time between inhalations (the so-called interval time) is short and this is repeatedly performed, the heater will heat the wick while the supply of liquid aerosol source to the wick cannot keep up. When this happens, the user will be unable to inhale the aerosol. This phenomenon is called, for example, dry puffing. Furthermore, even with jelly-like or gel-like aerosol sources, or aerosol sources containing glycerin or the like in solid objects such as tobacco, if heating by the heater continues for a predetermined time or longer, there is a risk that the aerosol source will become insufficient in the heated area.

According to one aspect of this disclosure , a technology is provided that can suppress a shortage of aerosol sources during heating.

According to one aspect of this disclosure , an aerosol generating device is provided, comprising: a first heating unit for heating a first aerosol source; a first sensor for detecting user inhalation; and a control unit for controlling the supply of power to the first heating unit, wherein when the control unit detects user inhalation, it sets a predetermined monitoring period, and if the first sensor detects multiple instances of inhalation within the monitoring period, it controls the heating and stopping of the first aerosol source in conjunction with each detected instance of inhalation.

The control unit may, after the monitoring period has elapsed, stop heating the first aerosol source even if the user continues to inhale.

The control unit does not need to reset the monitoring period even if the first sensor detects the start of a new suction within the monitoring period.

The system further comprises a second heating unit for heating a second aerosol source, and the control unit may stop or reduce the heating of the second aerosol source during the monitoring period.

The control unit may, during the monitoring period, heat the second aerosol source while heating the first aerosol source is stopped.

If the control unit supplies power to the first heating unit during the monitoring period, it may stop or reduce the power supply to the second heating unit.

The system further includes a second sensor for measuring the temperature of the second aerosol source, and the control unit may control the supply of power to the second heating unit according to the relationship between the temperature measured by the second sensor and the target first temperature.

The control unit may, depending on the relationship between the temperature measured by the second sensor and the first temperature, turn on or off the power supply to the second heating unit within each unit period in a unit period cycle.

The control unit may control the duty cycle of the pulses that provide power to the second heating unit in a unit period cycle, according to the relationship between the temperature measured by the second sensor and the first temperature.

The control unit may, when a second temperature lower than the first temperature is set, control the duty cycle to a first value if the temperature measured by the second sensor is less than or equal to the second temperature; control the duty cycle to a second value lower than the first value if the temperature measured by the second sensor exceeds the first temperature; and control the duty cycle to a predetermined intermediate value that is lower than the first value and higher than the second value if the temperature measured by the second sensor is midway between the second temperature and the first temperature.

When a second temperature lower than the first temperature and a third temperature even lower than the second temperature are set, the control unit may increase the amount of power supplied to the second heating unit when the temperature measured by the second sensor at the start of heating by the second heating unit is lower than the third temperature, compared to the amount of power supplied to the second heating unit when the temperature measured by the second sensor at the start of heating by the second heating unit is higher than the third temperature.

When a second temperature lower than the first temperature and a third temperature even lower than the second temperature are set, the control unit may, if the temperature measured by the second sensor at the start of heating by the second heating unit is lower than the third temperature, set the target temperature to a fourth temperature higher than the first temperature, and then change the target temperature from the fourth temperature to the first temperature when the temperature measured by the second sensor reaches the second temperature.

According to another aspect of the present invention, a control method for an aerosol generating apparatus that generates an aerosol is provided, characterized by comprising the steps of: heating a first aerosol source with a first heating unit; detecting user inhalation with a first sensor; controlling the supply of power to the first heating unit; setting a monitoring period of a predetermined length when the user inhalation is detected; and controlling the heating and stopping of heating of the first aerosol source during the monitoring period in conjunction with the detection of inhalation by the first sensor.

According to another aspect of the present invention, a program is provided for a computer to perform the following steps: a first heating unit heats a first aerosol source; a first sensor detects user inhalation; a power supply to the first heating unit is controlled; when user inhalation is detected, a monitoring period of a predetermined length is set; and during the monitoring period, the heating and stopping of heating of the first aerosol source is controlled in conjunction with the detection of inhalation by the first sensor.

This disclosure provides a technology that can suppress the shortage of aerosol sources during heating.

This figure illustrates an example of the external appearance of the aerosol generating device assumed in Embodiment 1. This diagram illustrates how to attach an aerosol source and other components to the main unit of the device. This diagram schematically shows the internal structure of an aerosol generator. This diagram illustrates an example of attaching a thermistor to the heating element that heats the capsule. These diagrams illustrate the normal mode and high mode. (A) is a diagram illustrating an example of heating timing in normal mode, and (B) is a diagram illustrating an example of heating timing in high mode. This figure illustrates an example of the heating timing of the cartridge and capsule in Embodiment 1. (A) shows the suction period, (B) shows an example of the cartridge heating timing, and (C) shows an example of the capsule heating timing. This figure illustrates another example of the heating timing of the cartridge and capsule in Embodiment 1. (A) shows the suction period, (B) shows an example of the timing of cartridge heating, and (C) shows an example of the timing of capsule heating. This figure illustrates another example of the heating timing of the cartridge and capsule in Embodiment 1. (A) shows the suction period, (B) shows an example of the timing of cartridge heating, and (C) shows an example of the timing of capsule heating. This figure illustrates another example of the heating timing of the cartridge and capsule in Embodiment 1. (A) shows the aspiration period, (B) shows an example of the cartridge heating timing, and (C) shows an example of the capsule heating timing. This figure illustrates another example of the heating timing of the cartridge and capsule in Embodiment 1. (A) shows the aspiration period, (B) shows an example of the cartridge heating timing, and (C) shows an example of the capsule heating timing. This figure illustrates another example of the heating timing of the cartridge and capsule in Embodiment 1. (A) shows the aspiration period, (B) shows an example of the cartridge heating timing, and (C) shows an example of the capsule heating timing. This flowchart illustrates an example of heating control of the cartridge 20 in normal mode in Embodiment 1. This flowchart illustrates a portion of an example of setting the heating ON monitoring time and controlling the heating unit ON/OFF in Embodiment 1. This flowchart illustrates the remaining part of an example of setting the heating ON monitoring time and controlling the heating unit ON/OFF in Embodiment 1. This flowchart illustrates some other examples of setting the heating ON monitoring time and controlling the heating unit ON/OFF in Embodiment 1. This flowchart illustrates the setting of the heating ON monitoring time and the remaining parts of other examples of heating unit ON/OFF control in Embodiment 1. This diagram illustrates an example of capsule heating control. This figure illustrates an example of the heating timing of the cartridge and capsule in Embodiment 2. (A) shows the suction period, (B) shows an example of the cartridge heating timing, and (C) shows an example of the capsule heating timing. This flowchart illustrates a part of an example of setting the heating ON monitoring time and controlling the heating unit ON/OFF in Embodiment 2. This figure illustrates another example of the heating timing of the cartridge and capsule in Embodiment 2. (A) shows the aspiration period, (B) shows an example of the cartridge heating timing, and (C) shows an example of the capsule heating timing. This flowchart illustrates the setting of the heating ON monitoring time and a portion of the ON/OFF control of the heating unit in Embodiment 2. This figure illustrates an example of capsule heating control in Embodiment 3. This figure illustrates an example of capsule heating control in Embodiment 4. (A) shows the temperature change at the start of heating when the temperature measured at the start of heating of the capsule is higher than the third temperature, and (B) shows the temperature change at the start of heating when the temperature measured at the start of heating of the capsule is lower than the third temperature. This flowchart illustrates an example of setting the heating ON monitoring time and controlling the heating unit ON/OFF in Embodiment 4. This figure illustrates an example of capsule heating control in Embodiment 5. (A) shows the temperature change at the start of heating when the temperature measured at the start of heating of the capsule is higher than the third temperature, and (B) shows the temperature change at the start of heating when the temperature measured at the start of heating of the capsule is lower than the third temperature. This flowchart illustrates an example of setting the heating ON monitoring time and controlling the heating unit ON/OFF in Embodiment 5. This flowchart illustrates another example of setting the heating ON monitoring time and controlling the heating unit ON/OFF in Embodiment 5.

Embodiments of the present invention will be described below with reference to the drawings. In each drawing, the same parts are denoted by the same reference numerals.

<Embodiment 1>
<Features>
The aerosol generating device assumed in Embodiment 1 is a form of electronic cigarette. In the following description, the substance generated by the aerosol generating device is referred to as an aerosol. An aerosol is a mixture of fine liquid or solid particles suspended in a gas and air or other gas.
The aerosol generating apparatus envisioned in Embodiment 1 is capable of generating aerosols without combustion.
In Embodiment 1, the act of a user inhaling the aerosol generated by the aerosol generating device is simply referred to as "inhalation" or "puffing."

In Embodiment 1, the aerosol generating device is assumed to be capable of being fitted with both a liquid aerosol source and a solid aerosol source. However, the aerosol source is not limited to liquids and solids, and also includes jelly-like or gel-like aerosol sources, and aerosol sources made by adding glycerin or the like to solids such as tobacco.
In the following, containers that hold liquid aerosol sources will be referred to as "cartridges," and containers that hold solid aerosol sources will be referred to as "capsules." Both cartridges and capsules are consumables. Therefore, there are established guidelines for when each cartridge and capsule should be replaced.

The aerosol generating apparatus assumed in Embodiment 1 includes a heater for generating aerosols by heating a liquid aerosol source, and a heater for generating aerosols by heating a solid aerosol source. The heater is an example of a heating unit, which will be described later.
Liquid aerosol sources are an example of the first aerosol source, and solid aerosol sources are an example of the second aerosol source. However, the first aerosol source is not limited to liquid aerosol sources, and may also include solid aerosol sources, jelly-like or gel-like aerosol sources, and aerosol sources containing glycerin or the like in solid objects such as cigarettes. Similarly, the second aerosol source is not limited to solid aerosol sources, and may also include liquid aerosol sources, jelly-like or gel-like aerosol sources, and aerosol sources containing glycerin or the like in solid objects such as cigarettes.

<Example of exterior>
Figure 1 is a diagram illustrating an example of the external appearance of the aerosol generating apparatus 10 assumed in Embodiment 1.
The example appearance shown in Figure 1 is obtained by observing the front of the aerosol generator 10 from an oblique angle above. The aerosol generator 10 assumed in this embodiment is sized to be held in one hand by the user. For example, the width of the aerosol generator 10 is approximately 32 mm, the height is approximately 60 mm, and the depth is approximately 23 mm. These dimensions are just examples. The width, height, and depth may also differ depending on the design of the aerosol generator 10.

Figure 1 shows the aerosol generating device 10 with the capsule holder 12 attached to the device body 11. As will be described later, the capsule holder 12 can be attached to and detached from the device body 11.
A display 11A and operation buttons 11B are located on the top surface of the main body 11 of the device. For example, a liquid crystal display or an organic EL (= Electro-Luminescence) display can be used for the display 11A. The operation buttons 11B are used for operations such as turning the power on or off, checking the remaining amount of solid aerosol source, checking the battery level, and other operations. Display 11A is an example of a display unit.

<Examples of attachment of aerosol sources, etc.>
Figure 2 illustrates how to attach an aerosol source or the like to the device body 11. An opening (not shown) is provided at the top of the device body 11. This opening constitutes the end of a cylindrical body (not shown) located inside the device body 11.
The cartridge 20 is first inserted into the opening of the device body 11, and then the capsule holder 12 is attached.

When attaching the capsule holder 12 to the opening of the device body 11 or removing it from the opening, the user rotates the capsule holder 12 by, for example, 120° relative to the opening.
The capsule holder 12 attached to the main body 11 of the device functions as a retainer to prevent the cartridge 20 inserted into the main body 11 from flying out.
The capsule holder 12 also has an opening. The opening forms a cylindrical end (not shown) located inside the capsule holder 12. The capsule 30 is fitted into this opening. The capsule 30 can be fitted into the opening of the capsule holder 12 by pushing it in, and can be removed by pulling it out of the opening of the capsule holder 12.
In this embodiment, the cartridge 20 is inserted through an opening provided on the upper surface of the device body 11, but a configuration in which it is inserted from the lower side of the device body 11 may also be adopted.

<Internal Configuration of the Device>
Figure 3 is a schematic diagram showing the internal configuration of the aerosol generator 10. The internal configuration shown here includes a cartridge 20 (see Figure 2) and a capsule 30 (see Figure 2) mounted on the main body 11 of the device.
The internal configuration shown in Figure 3 is intended to explain the components installed inside the main body 11 of the device and their positional relationships. For this reason, the appearance of the components shown in Figure 3 does not necessarily match that of the external view described above.

The aerosol generating device 10 shown in Figure 3 includes a power supply unit 111L, a sensor unit 112L, a notification unit 113L, a storage unit 114L, a communication unit 115L, a control unit 116L, a liquid induction unit 122L, a liquid storage unit 123L, a heating unit 121L-1, a heating unit 121L-2, a holding unit 140L, and a heat insulating unit 144L.
An air passage 180L is formed inside the main body 11 of the device. The air passage 180L functions as a passage for transporting aerosols generated from a liquid aerosol source stored in the liquid storage section 123L to a capsule-type container 130L filled with a solid aerosol source.

The liquid storage section 123L corresponds to the cartridge 20 mentioned above, and the capsule-type container 130L corresponds to the capsule 30 mentioned above.
In this embodiment, the user performs suction with the capsule-type container 130L attached to the holding part 140L. The holding part 140L corresponds to the aforementioned capsule holder 12 (see Figure 2) and the cylindrical body on the device body 11 side to which the capsule holder 12 is attached.

The following describes the various parts that make up the main body 11 of the device.
The power supply unit 111L is a device that stores power and supplies power to each part that makes up the main body 11 of the device. A rechargeable battery such as a lithium-ion secondary battery is used in the power supply unit 111L.
If the power supply unit 111L is a rechargeable battery, it can be recharged repeatedly via an external power supply connected through a USB (Universal Serial Bus) cable or the like.

Furthermore, if the main unit 11 of the device supports wireless power transmission, it is possible to charge the power supply unit 111L in a non-contact manner with an external device that acts as the power transmission side.
If the power supply unit 111L is removable from the main unit 11 of the device, it is possible to replace a worn-out power supply unit 111L with a new one.

The sensor unit 112L is a device that detects information about each part of the main body 11 of the device. The sensor unit 112L outputs the detected information to the control unit 116L.
The sensor unit 112L provided on the main body 11 of the device may include, for example, a pressure sensor such as a microphone condenser, a flow sensor, or a temperature sensor. This type of sensor unit 112L is used, for example, to detect user suction. The sensor unit 112L used to detect suction is an example of the first sensor.

The sensor unit 112L provided on the main body 11 of the device includes an input device that receives user input, such as buttons or switches. The buttons here include the aforementioned operation button 11B (see Figure 1). This type of sensor unit 112L is used, for example, to receive user input.
The sensor unit 112L provided on the main body 11 of the device includes, for example, a thermistor. In this embodiment, the thermistor is used to measure the temperature of the heating unit 121L-2 used to heat the capsule 30. In this embodiment, two thermistors are attached to the heating unit 121L-2.

Figure 4 illustrates an example of the installation of thermistors 112L-1 and 112L-2 on the heating section 121L-2 that heats the capsule 30.
In Figure 4, the thermistors 112L-1 and 112L-2 are mounted on the outer surface of the cylindrical heating section 121L-2. The mounting positions of thermistors 112L-1 and 112L-2 in Figure 4 are offset in the axial direction of the heating section 121L-2. The amount of offset is, for example, several millimeters. The direction of the offset is not limited to the axial direction, but may also be in the circumferential direction, or a combination of the axial and circumferential directions.

Furthermore, the offset amount of thermistors 112L-1 and 112L-2 is not limited to a few millimeters. The mounting positions of thermistors 112L-1 and 112L-2 are arbitrary, as long as they are at a position where approximately the same temperature can be detected by heating by the heating unit 121L-2. For example, the mounting position may be on a different component from the heating unit 121L-2.

The offset amount of thermistors 112L-1 and 112L-2 may be 0 (zero). In other words, thermistors 112L-1 and 112L-2 may be mounted in the same position on the heating section 121L-2.
In the first embodiment, only thermistor 112L-1 uses the measured temperature for heating control of the heating unit 121L-2, while the other thermistor 112L-2 is a spare. Here, thermistors 112L-1 and 112L-2 are examples of second sensors.

Let's return to the explanation of Figure 3.
The notification unit 113L is a device that notifies the user of information.
The notification unit 113L provided on the main body 11 of the device includes a light-emitting device such as an LED (= Light Emitting Diode). When the notification unit 113L is a light-emitting device, the light-emitting device is controlled to emit light in a pattern corresponding to the content of the information to be notified. For example, when notifying the user that the power supply unit 111L needs to be charged, when notifying the user that the power supply unit 111L is charging, and when notifying the user that an abnormality has occurred, the light-emitting device is controlled to emit light in different patterns.

Different light emission patterns are a concept that includes differences in color, differences in the timing of on and off, and differences in brightness when lit.
In addition, the notification unit 113L provided on the main body 11 of the device includes, for example, a display device for displaying images, a sound output device for outputting sound, and a vibration device for vibrating. These devices may be used individually or in combination, and may be used together with the aforementioned light-emitting device, or in place of the light-emitting device. An example of a display device here is the display 11A (see Figure 1).

The storage unit 114L stores various information related to the operation of the main body of the device 11. The storage unit 114L is composed of a non-volatile storage medium such as flash memory.
The information stored in the memory unit 114L includes, for example, programs executed by the control unit 116L. These programs include the OS (Operating System), firmware, and application programs.

In addition, the information stored in the memory unit 114L includes, for example, information that the control unit 116L needs to control each part.
The information here also includes information about each part detected by the aforementioned sensor unit 112L. For example, it includes information about user suction and the remaining battery capacity. Information about user suction includes, for example, the number of suctions, the time when suction was detected, and the cumulative duration of suction.

The communication unit 115L is a communication interface used to send and receive information with other devices. The communication interface conforms to wired and wireless communication standards.
Communication standards include, for example, wireless LAN (Local Area Network), wired LAN, and mobile communication systems such as 4G and 5G. In this embodiment, Wi-Fi® and Bluetooth® are used.

The communication unit 115L is used, for example, to display information related to the user's suction on a smartphone or tablet-type terminal.
In addition, the communication unit 115L is used, for example, to receive update data for programs stored in the storage unit 114L from a server.

The control unit 116L functions as both an arithmetic processing unit and a control device, and controls the operation of each part that constitutes the main body 11 of the device through the execution of a program.
The control unit 116L is equipped with electronic circuits such as a CPU (Central Processing Unit) and a microprocessor.
In addition, the control unit 116L may be provided with ROM (Read Only Memory) for storing programs and calculation parameters, and RAM (Random Access Memory) for temporarily storing parameters that change as needed.

The control unit 116L controls, for example, the supply of power from the power supply unit 111L to each unit, the charging of the power supply unit 111L, the detection of information by the sensor unit 112L, the notification of information by the notification unit 113L, the storage unit 114L for storing and reading information, and the transmission and reception of information by the communication unit 115L.
The control unit 116L also performs processing of information received through user operations, processing based on information output from each unit, and other related tasks.

The liquid storage section 123L is a container for storing a liquid aerosol source. For example, the liquid aerosol source may be a polyhydric alcohol such as glycerin and propylene glycol, or a liquid such as water.
The liquid aerosol source may contain tobacco raw materials or extracts derived from tobacco raw materials that release flavor components when heated. The liquid aerosol source may also contain nicotine.

The liquid guide section 122L is a component that guides and holds the liquid aerosol source stored in the liquid storage section 123L from the liquid storage section 123L. The liquid guide section 122L has a structure made by twisting together a fibrous material such as glass fiber or a porous material such as porous ceramic. This type of component is also called a wick.
Both ends of the liquid guide section 122L are connected to the inside of the liquid storage section 123L. Therefore, the aerosol source stored in the liquid storage section 123L spreads throughout the liquid guide section 122L by the capillary effect.

The heating unit 121L-1 is a component that heats and atomizes the aerosol source held in the liquid induction unit 122L to generate an aerosol. The heating unit 121L-1 is an example of a first heating unit.
The heating element 121L-1 is not limited to the coil shape shown in Figure 3, but may also be in the shape of a film, blade, or other form. The shape of the heating element 121L-1 varies depending on the heating method, etc. The heating element 121L-1 is made of any material such as metal or polyimide.

The heating section 121L-1 is positioned in close proximity to the liquid guide section 122L. In this embodiment, the heating section 121L-1 is a metal coil wrapped around the outer surface of the liquid guide section 122L.
The heating unit 121L-1 generates heat through power supply from the power supply unit 111L, heating the aerosol source held in the liquid induction unit 122L to its vaporization temperature. Once the aerosol source reaches its vaporization temperature, it is released into the air as a gas from the liquid induction unit 122L, but is cooled by the surrounding air and atomized to become an aerosol.

The power supply to the heating unit 121L-1, which heats the liquid aerosol source, is basically linked to the user's suction. That is, power is supplied to the heating unit 121L-1 from the start to the end of the user's suction, and the power supply to the heating unit 121L-1 is stopped when the user's suction ends.
In this embodiment, as a countermeasure against short-interval suction, a period may be provided during which the power supply to the heating unit 121L-1 is stopped even if suction by the user is detected. This period will be described later.

In addition, power supply to the heating unit 121L-1, which heats the liquid aerosol source, may start, for example, when a specific button is pressed while no aerosol is being generated, and stop when a specific button is pressed while an aerosol is being generated.
The button that signals the start of aerosol generation and the button that signals the stop of aerosol generation can be the same button or different buttons.

The 130L capsule-type container is a container filled with a solid aerosol source.
The solid aerosol source may include processed products such as shredded tobacco or tobacco raw materials molded into granules, sheets, or powders that release flavor components when heated. In other words, the solid aerosol source may contain tobacco-derived substances. Furthermore, the solid aerosol source may contain, for example, nicotine components.
Furthermore, the aerosol source of the solid material may include non-tobacco-derived substances extracted from plants other than tobacco (e.g., mint, herbs, etc.). In addition, the aerosol source of the solid material may include fragrance components such as menthol.

The holding portion 140L corresponds to, for example, a capsule holder 12 (see Figure 2) and has an internal space 141L into which a capsule-type container 130L is mounted. The holding portion 140L is a cylindrical body having a bottom portion 143L and defines a columnar internal space 141L.
A portion of the capsule-shaped container 130L is held by the holding portion 140L, while the remainder is exposed outside the holding portion 140L. The portion of the capsule-shaped container 130L that is exposed from the holding portion 140L is used as a mouthpiece 124L. The mouthpiece 124L is held in the mouth of the user who inhales the aerosol.

The air inlet (i.e., air inlet) for the holding portion 140L is provided, for example, at the bottom 143L. The bottom of the capsule-type container 130L has a hole through which air can flow in. Therefore, the air flowing in from the bottom 143L passes through the inside of the capsule-type container 130L and reaches the mouthpiece 124L. In other words, the mouthpiece 124L becomes the air outlet (i.e., air outlet).
Incidentally, the bottom portion 143L is connected to the air outlet hole 182L of the air passage 180L formed inside the main body of the device 11. Through this air outlet hole 182L, the internal space 141L of the holding portion 140L and the air passage 180L are connected.

The heating unit 121L-2 generates an aerosol by heating the solid aerosol source filled in the capsule-type container 130L to atomize it. The heating unit 121L-2 is an example of a second heating unit.
The heating section 121L-2 is made of metal or polyimide, etc. The heating section 121L-2 is positioned to contact the outer circumferential surface of the metal portion of the holding section 140L.
The heating unit 121L-2 generates heat when power is supplied from the power supply unit 111L, and heats the outer surface of the capsule-shaped container 130L that is in contact with the metal part of the holding unit 140L.

Therefore, the area near the outer surface of the capsule-shaped container 130L is heated first, and then the heated area spreads towards the center.
Aerosol sources that reach their vaporization temperature are vaporized. However, they are cooled by the surrounding air and atomize, becoming aerosols.
The power supply to the heating unit 121L-2 and the heating associated with the power supply are controlled by the control unit 116L.

The heat insulating portion 144L is a component that prevents heat transfer from the heating portion 121L-2 to other components of the device body 11. The heat insulating portion 144L covers at least the outer surface of the heating portion 121L-2.
The insulation section 144L is composed of, for example, vacuum insulation material or aerogel insulation material. Vacuum insulation material refers to an insulation material in which heat conduction by gas is brought as close to zero as possible by wrapping glass wool or silica (silicon powder) in a resin film and creating a high vacuum state.

As described above, the air passage 180L is an air passage provided inside the main body 11 of the device. The air passage 180L has a tubular structure with an air inlet 181L, which is the air inlet to the air passage 180L, and an air outlet 182L, which is the air outlet from the air passage 180L, at both ends.
As the user sucks, air flows from the air inlet hole 181L into the air passage 180L, and air flows out from the air outlet hole 182L to the bottom 143L of the holding part 140L.

A liquid guide section 122L is positioned in the middle of the air passage 180L. The liquid-derived aerosol generated by heating in the heating section 121L-1 is mixed with air flowing in through the air inlet 181L. Subsequently, the mixed gas of liquid-derived aerosol and air passes through the inside of the capsule-type container 130L and is output from the mouthpiece 124L into the user's oral cavity. In Figure 3, this passage is indicated by the arrow 190L.

As the liquid-derived aerosol and air mixture passes through the 130L capsule-type container, solid-derived aerosols are added to it.
The concentration of aerosols derived from solid matter increases by combining this with the heating control of the heating unit 121L-2.
As will be described later, this embodiment also provides a heating mode that is not combined with the heating control of the heating unit 121L-2.

If the heating control of the heating unit 121L-2 is not combined, a solid aerosol is generated by heating the solid aerosol source as the liquid aerosol passes through the capsule-type container 130L.
However, the amount of solid-derived aerosol generated by heating liquid-derived aerosol is less than when combined with the heating control of the heating unit 121L-2.

<Heating Mode>
The aerosol generating device 10 assumed in Embodiment 1 is provided with two types of heating modes.
The first heating mode is a first mode that uses only the heating unit 121L-1 to heat the aerosol source stored in the cartridge 20 (see Figure 2). In other words, it is a heating mode that heats only the cartridge 20.
Hereafter, this heating mode will be referred to as "normal mode". In normal mode, the heating unit 121L-2 that heats the solid aerosol source is always controlled to be off.
In normal mode, the heating of capsule 30 may be controlled to be reduced rather than stopped.

The second heating mode is a second mode that uses both a heating unit 121L-1, which heats the aerosol source stored in the cartridge 20, and a heating unit 121L-2, which heats the aerosol source filled in the capsule 30 (see Figure 2). In other words, it is a heating mode that heats both the cartridge 20 and the capsule 30.
Hereafter, this heating mode will be referred to as "high mode". In high mode, heating of the cartridge 20 by heating unit 121L-1 and heating of the capsule 30 by heating unit 121L-2 are performed alternately.

Switching between heating modes is performed, for example, by pressing and holding the operation button 11B (see Figure 1) for two seconds or more.
For example, if the operation button 11B is pressed and held for more than 2 seconds while in high mode, the operating mode will switch to normal mode. Conversely, if the operation button 11B is pressed and held for more than 2 seconds while in normal mode, the operating mode will switch to high mode.

In high mode, heating of the cartridge 20 by heating unit 121L-1 takes priority over heating of the capsule 30 by heating unit 121L-2.
In other words, while heating is being performed by heating unit 121L-1, heating by heating unit 121L-2 is stopped. Also, if an event occurs that starts heating the cartridge 20 while the capsule 30 is being heated by heating unit 121L-2, heating by heating unit 121L-2 is stopped.

In the case of the aerosol generating device 10 assumed in Embodiment 1, the heating of heating unit 121L-1 and heating unit 121L-2 are controlled so as not to exceed the upper limit of the output current of the battery used as the power supply unit 111L.
Here, "simultaneous" does not mean that the heating timings do not overlap at all. Therefore, overlaps caused by, for example, errors in operating timing are acceptable.

In high mode, the heating unit 121L-2, which heats the solid aerosol source, may be kept off at all times, and the power supplied to it may be reduced. That is, some or all of the heating period by heating unit 121L-1 and heating period by heating unit 121L-2 may be allowed to overlap. However, if simultaneous heating is allowed, it is desirable to make the maximum power supplied to heating units 121L-1 and 121L-2 during simultaneous heating smaller than the maximum power supplied during individual heating, so as not to exceed the upper limit of the battery output current.
For example, when heating of the cartridge 20 by the heating unit 121L-1 is started, the heating of the capsule 30 by the heating unit 121L-2 is reduced so as not to exceed the upper limit of the battery's output current.

Figure 5 illustrates the normal mode and high mode. (A) is a diagram illustrating an example of heating timing in normal mode, and (B) is a diagram illustrating an example of heating timing in high mode.
Figure 5(A1) shows the heating timing of the cartridge 20 in normal mode, and Figure 5(A2) shows the heating timing of the capsule 30 in normal mode.
In Figures 5 (A1) and (A2), the horizontal axis represents time, and the vertical axis represents whether or not heating was performed.
During periods of heating, power is supplied to the corresponding heating element; during periods of non-heating, power is not supplied to the corresponding heating element, or the power supplied to the corresponding heating element is reduced.

In normal mode, heating control begins when the lock state is released.
The locked state is a state in which control by the control unit 116L is stopped. Therefore, even if the user puts the mouthpiece 124L in their mouth and inhales, no aerosol will be generated.
The locked state is released, for example, by pressing the operation button 11B (see Figure 1) three times in a row within two seconds. The number of presses, the button to be operated, and the time required for the operation are all examples.
When the heating control in normal mode starts, the cartridge 20 is heated in conjunction with the suction period, as shown in Figure 5 (A1).
"Linked to the suction period" means that it is linked to the detection of suction by the sensor unit 112L.

Therefore, if a suction for 1 second is detected, the cartridge 20 is heated for 1 second, and if a suction for 2 seconds is detected, the cartridge 20 is heated for 2 seconds.
In this embodiment, the heating of the cartridge 20 is controlled in units of a predetermined "monitoring period" of length that is started upon detection of suction. The monitoring period is, for example, 2.4 seconds. However, the monitoring period is not limited to 2.4 seconds and can be set arbitrarily.
In this embodiment, the monitoring period is set to the maximum time for which the cartridge 20 can be continuously heated. Therefore, even if suction is detected continuously after the end of the monitoring period, the heating of the cartridge 20 is terminated.
The heating of the cartridge may also be controlled in units of "suction cycles." A suction cycle is a monitoring period that begins when the first suction is detected after the completion of the previous suction cycle. One monitoring period is one suction cycle.

After the end of the monitoring period, a new monitoring period is set upon detection of new suction. During the new monitoring period, the same heating control as that used for heating cartridge 20 during the monitoring period is performed.
If the time between the monitoring period and the new monitoring period is less than a predetermined value, the heating of the cartridge 20 during the new monitoring period may be reduced compared to the heating of the cartridge 20 during the monitoring period. In this case, the degree of reduction in the heating of the cartridge 20 during the new monitoring period may be determined based on the length of time between the monitoring period and the new monitoring period. The predetermined value is, for example, 10 seconds, but is not limited to 10 seconds and can be set arbitrarily.
Based on the length of time between the monitoring period and the new monitoring period, the heating of the cartridge 20 during the new monitoring period is reduced compared to the heating of the cartridge 20 during the monitoring period. Therefore, even if short-interval aspiration is repeated, it becomes possible to ensure enough time to supply the liquid aerosol source to the wick before the heating of the cartridge 20 begins.

In this embodiment, a period may be provided after the monitoring period during which heating of the cartridge 20 is stopped regardless of the detection of suction (hereinafter referred to as the "heating off period").
By providing a monitoring period and a heating off period, even if short-interval aspiration is repeated (or if aspiration is detected to continue for a long period of time), it becomes possible to ensure time to supply the liquid aerosol source to the wick before heating of the cartridge 20 begins.

In normal mode, as shown in Figure 5 (A2), heating of the capsule 30 is not performed regardless of whether or not suction is performed.
In this embodiment, once a predetermined time has elapsed since the last detection of suction, the control unit 116L transitions to a locked state.
The heating mode does not change even when the device is locked. The heating mode also does not change when the device is released from the locked state.

In this embodiment, a predetermined time of 6 minutes (i.e., 360 seconds) is adopted. This time is just an example. A 6-minute interval since the last inhalation indicates a high probability that the user has stopped inhaling the aerosol.
Therefore, in this embodiment, the device switches to a locked state in order to suppress the power consumed by the main body 11 (see Figure 2). The same applies to the high mode. That is, six minutes after the last suction, the aerosol generator 10 is controlled to a locked state.

The device will also enter the locked state if the user instructs it to do so. Manual entry into the locked state by the user is performed, for example, by pressing operation button 11B (see Figure 1) three times in a row within two seconds, before six minutes have elapsed since the last suction. The number of presses, the button targeted, and the time required for the operation are all examples.

Figure 5(B1) shows the temperature change of the capsule 30 in high mode, Figure 5(B2) shows the heating timing of the cartridge 20 in high mode, and Figure 5(B3) shows the heating timing of the capsule 30 in high mode.
In Figure 5 (B1), the horizontal axis represents time, and the vertical axis represents the capsule temperature. In Figures 5 (B2) and (B3), the horizontal axis represents time, and the vertical axis represents whether or not heating was performed.
During periods of heating, power is supplied to the corresponding heating element; during periods of no heating, power is not supplied to the corresponding heating element, or the power supplied to the corresponding heating element is reduced.

High mode heating control is initiated when the lock state is released or when switching from normal mode to high mode.
When the high-mode heating control is activated, heating of the capsule 30 begins, as shown in Figure 5 (B3). This heating basically continues until aspiration is detected, and during the period when aspiration is detected, the heating of the capsule 30 is stopped or reduced.
As shown in Figures 5(B2) and 5(B3), the heating of the capsule 30 is stopped or reduced at the same time that the heating of the cartridge 20 begins. The initial temperature of the capsule 30 is, for example, the ambient temperature of the environment in which the aerosol generator 10 is used, such as room temperature.

As shown in Figure 5 (B1), the temperature of capsule 30 rises as it is heated, and decreases when the heating of capsule 30 stops or is reduced. The decrease in temperature is proportional to the length of time the heating is stopped or reduced.
A target temperature is set for the capsule 30. When the temperature measured by the thermistor attached to the heating unit 121L-2 reaches the target temperature, the control unit 116L controls the on/off of the power supply to the heating unit 121L-2 to maintain the target temperature. For example, when the measured temperature falls below the target temperature, power is supplied (i.e., power supply is turned on), and when it exceeds the target temperature, power is stopped (i.e., power supply is turned off). The heating control of the heating unit 121L-2 by the control unit 116L may be proportional control or PID (Proportional-Integral-Differential) control, etc.
In this embodiment, the target temperature is 60°C. This value is just an example.

In the case of the aerosol generator 10 in this embodiment, as shown in Figures 5(B2) and (B3), the heating of the capsule 30 may be stopped or reduced after 30 seconds have elapsed since the last detection of suction, thereby suppressing power consumption. In other words, it may enter a sleep state. When in a sleep state, the heating of the capsule 30 is stopped or reduced, so as shown in Figure 5(B1), the temperature of the capsule 30 also gradually decreases.

In sleep mode, the heating of capsule 30 is stopped or reduced, but the sensor unit 112L that detects suction is operating. Therefore, when user suction is detected in sleep mode, heating of cartridge 20 is performed, as shown in Figure 5(B2). When the heating of cartridge 20 is completed, the heating of capsule 30 is started or increased, as shown in Figure 5(B3). When the heating of capsule 30 is restarted or increased, the temperature of capsule 30 also rises, as shown in Figure 5(B1).

In this embodiment, the transition to sleep mode is not notified to the user, but the user may be notified if desired.
Furthermore, if the device remains in sleep mode for another 5 minutes and 30 seconds, it will transition to the aforementioned locked state.

<Heating ON monitoring time>
In this embodiment, the heating of capsule 30 may be stopped or reduced during the monitoring period.

Figures 6 to 8 show examples of heating timing control when the heating of capsule 30 is stopped or reduced during the monitoring period. The heating control examples described below can be applied to the heating of cartridge 20 (see Figure 2) in normal mode, except for the heating of capsule 30 (see Figure 2).
Figures 6 to 8 correspond to the differences in suction patterns.

Figure 6 illustrates an example of the heating timing of the cartridge 20 and capsule 30 in Embodiment 1. (A) shows the aspiration period, (B) shows an example of the heating timing of the cartridge 20, and (C) shows an example of the heating timing of the capsule 30.

In this embodiment, the monitoring period may be referred to as the "heating-on monitoring time." Hereafter, the monitoring period will be described as the "heating-on monitoring time." In the case of Figure 6, the heating-on monitoring time is 2.4 seconds. However, the heating-on monitoring time is not limited to 2.4 seconds; it may be 2 seconds or 3 seconds.

In Figure 6(A), two suctions are detected during the heating-on monitoring period, and the second suction ends before the heating-on monitoring period has elapsed. In this case, the heating timing of the cartridge 20 coincides with the duration of the detected suctions, as shown in Figure 6(B).
After the heating-on monitoring period ends, a new heating-on monitoring period is set upon detection of a new suction. Since the new heating-on monitoring period is set upon detection of a new suction after the heating-on monitoring period has ended, a new heating-on monitoring period will not be set even if a second suction is detected during the heating-on monitoring period.
In this embodiment, the heating of the capsule 30 is stopped (off control) or reduced for the entire duration of the heating on monitoring period, as shown in Figure 6(C). Furthermore, the heating of the capsule 30 is started or increased during periods other than the heating on monitoring period, as shown in Figure 6(C).

Figure 7 illustrates another example of the heating timing of the cartridge 20 and capsule 30 in Embodiment 1. (A) shows the suction period, (B) shows an example of the heating timing of the cartridge 20, and (C) shows an example of the heating timing of the capsule 30.
Figure 7 shows the parts corresponding to those in Figure 6, indicated by corresponding reference numerals.
The difference between Figure 7 and Figure 6 is that in Figure 7(A), the second suction during the heating monitoring ON time continues beyond the heating ON monitoring time.

As shown in Figure 7(B), even if suction continues beyond the heating-on monitoring time, heating of the cartridge 20 stops once the heating-on monitoring time has elapsed. Also, as shown in Figure 7(C), heating of the capsule 30 is started or increased.

Figure 8 illustrates another example of the heating timing of the cartridge 20 and capsule 30 in Embodiment 1. (A) shows the suction period, (B) shows an example of the heating timing of the cartridge 20, and (C) shows an example of the heating timing of the capsule 30.
Figure 8 shows the parts corresponding to those in Figure 6, indicated by corresponding reference numerals.
The difference between Figure 8 and Figure 6 is that the non-suction state continues even after the heating-on monitoring period has elapsed, and the device transitions to a sleep state.

In Figure 8, the start of the sleep state transition period is defined as the time when the heating-on monitoring period ends, and the system transitions to the sleep state after 30 seconds of non-suction. Alternatively, the system may transition to the sleep state 30 seconds after the end of suction within the heating-on monitoring period, or 30 seconds after the end of the second suction in Figure 8(A).
Note that while Figures 6(A), 7(A), and 8(A) illustrate the case where two suctions are detected during the heating-on monitoring period, the number of suctions during the heating-on monitoring period can be one, three, or more.

<Heating On Monitoring Time and Heating Off Time>
In this embodiment, in addition to the heating period (heating on monitoring period), a heating off period may also be provided. Below, specific examples of heating control during the heating on monitoring period and the heating off period will be described using Figures 9 to 11.
Figures 9 to 11 show examples of heating timing control in Embodiment 1. The heating control examples described below can be applied to heating the cartridge 20 (see Figure 2) in normal mode, except for heating the capsule 30 (see Figure 2).
Figures 9 to 11 correspond to the differences in suction patterns.

Figure 9 illustrates another example of the heating timing of the cartridge 20 and capsule 30 in Embodiment 1. (A) shows the aspiration period, (B) shows an example of the heating timing of the cartridge 20, and (C) shows an example of the heating timing of the capsule 30.
In this embodiment, the monitoring period may be referred to as the "heat-on monitoring time." In the case of Figure 9, the heat-on monitoring time is 2.4 seconds. However, the heat-on monitoring time is not limited to 2.4 seconds; it may be 2 seconds or 3 seconds.

In Figure 9(A), two suctions are detected during the heating-on monitoring period, and the second suction ends before the heating-on monitoring period has elapsed. In this case, the heating timing of the cartridge 20 coincides with the duration of the detected suctions, as shown in Figure 9(B).
After the heating-on monitoring period ends, a new heating-on monitoring period is set upon detection of a new suction. Since the new heating-on monitoring period is set upon detection of a new suction after the heating-on monitoring period has ended, a new heating-on monitoring period will not be set even if a second suction is detected during the heating-on monitoring period.
In this embodiment, the heating of the capsule 30 is stopped (off control) or reduced for the entire duration of the heating ON monitoring period, as shown in Figure 9(C).

In Figure 9, after the heating-on monitoring period ends, a heating-off period of, for example, 1.2 seconds is provided. Note that the 1.2-second heating-off period is just one example.
The heating off time is the time during which heating of the cartridge 20 is stopped. Therefore, as shown in Figure 9(A), even if suction is detected during the heating off time, heating of the cartridge 20 will not be performed, as shown in Figure 9(B).

On the other hand, when the heating off time begins, heating of the capsule 30 is started or increased, as shown in Figure 9(C). In the example in Figure 9(A), since no aspiration is detected even after the heating off time has elapsed, the heated state of the capsule 30 continues even after the heating off time ends until the next aspiration is detected.
If new suction is detected in this state, a new heating on monitoring time is set, and the heating of the cartridge 20 is started, and the heating of the capsule 30 is stopped or reduced.

Figure 10 illustrates another example of the heating timing of the cartridge 20 and capsule 30 in Embodiment 1. (A) shows the aspiration period, (B) shows an example of the heating timing of the cartridge 20, and (C) shows an example of the heating timing of the capsule 30.
Figure 10 shows the parts corresponding to those in Figure 9, indicated by corresponding reference numerals.
The difference between Figure 10 and Figure 9 is that in Figure 10(A), the second suction during the monitoring-on period continues beyond the heating-on monitoring period, and the next suction starts within the heating-off period.

Even if suction continues beyond the heating-on monitoring time, the heating-off time starts once the heating-on monitoring time has elapsed, so heating of the cartridge 20 is stopped as shown in Figure 10(B).
Furthermore, even if suction starts before the heating-off time has elapsed, the heating of the cartridge 20 remains stopped, so a new heating-on monitoring period begins only after the heating-off time has elapsed.

Figure 11 illustrates another example of the heating timing of the cartridge 20 and capsule 30 in Embodiment 1. (A) shows the aspiration period, (B) shows an example of the heating timing of the cartridge 20, and (C) shows an example of the heating timing of the capsule 30.
Figure 11 shows the corresponding parts with reference numerals, as shown in Figure 9.
The difference between Figure 11 and Figure 9 is that the non-suction state continues even after the heating off time has elapsed, and the device transitions to a sleep state.

In Figure 11, the start of the sleep state transition is defined as the time when the heating-on monitoring period ends, i.e., the time when the heating-off period begins. Even after the heating-off period ends, the system transitions to the sleep state when the non-suction state continues for 28.8 seconds.
Furthermore, the device may be configured to enter sleep mode 30 seconds after the end of suction during the heating-on monitoring period, or 30 seconds after the end of the second suction in Figure 11(A).
Note that while Figures 9(A), 10(A), and 11(A) illustrate the case where two suction events are detected during the heating-on monitoring period, the number of suction events during the heating-on monitoring period can be one, three, or more.

<Heating control of the heating element in normal mode>
Figure 12 is a flowchart illustrating an example of heating control of the cartridge 20 in normal mode in Embodiment 1. The symbol S in the figure represents a step.
The process shown in Figure 12 is achieved through the execution of a program. This program is stored in the memory unit 114L (see Figure 3) and executed by the control unit 116L (see Figure 3).

The control unit 116L determines whether or not it has detected the start of suction (step 100). The pressure sensor used for detecting suction requires approximately 60 ms to detect the start of suction. At the shortest, it is possible to detect the start of suction in approximately 20 ms. In this embodiment, the accuracy of detecting the start of suction is improved by repeating the 20 ms determination three times. The same applies to detecting the end of suction, which will be described later. That is, the control unit 116L improves the accuracy of detecting the end of suction by repeating the approximately 20 ms determination three times.
While a negative result ("NO" in step 100) is obtained in step 100, the control unit 116L repeats the determination in step 100.

If a positive result (YES in step 100) is obtained in step 100, it is determined whether or not a heating-on monitoring time has been set (step 101).
If a positive result (YES in step 101) is obtained in step 101, power is supplied to the heating unit that heats the cartridge (step 102).
On the other hand, if a negative result ("NO" in step 102) is obtained in step 102, the heating start time is set (step 103), and power is supplied to the heating unit that heats the cartridge (step 104).

Next, the control unit 116L determines whether the heating-on monitoring period has ended (step 105).
If it is within the heating-on monitoring period, the control unit 116L obtains a negative result ("NO" in step 105) and determines whether or not it has detected the start of suction (step 106).

In this context, the initiation of suction refers to the start of multiple suction events within a single heating-on monitoring period.
If a negative result ("NO" in step 106) is obtained in step 106, the control unit 116L determines whether or not it has detected the end of suction (step 107).
If the end of suction is not detected, that is, if the user is continuing to suction, the control unit 116L obtains a negative result ("NO" in step 107) in step 107 and returns to step 105. In other words, as long as the end of suction is not detected, the control unit 116L repeats the loop processing from step 105 to step 107.

If the end of suction is detected within the heating ON monitoring time, the control unit 116L obtains a positive result ("YES" in step 107). If a positive result ("YES" in step 107) is obtained in step 107, the control unit 116L stops supplying power to the heating unit 121L-1 that heats the cartridge 20 (step 108). In other words, it stops heating the cartridge 20.
After this, the control unit 116L returns to step 105.
If a new suction is detected before the heating-on monitoring time has ended, the control unit 116L obtains a positive result ("YES" in step 106). In this case, the control unit 116L instructs the heating unit 121L-1, which heats the cartridge 20, to supply power (step 109).
After this, the control unit 116L returns to step 105.

Thus, while the heating ON monitoring time is not finished (while a negative result ("NO" in step 105) is obtained in step 105), the control unit 116L repeatedly stops the heating of the cartridge 20 in conjunction with the end of suction and starts the heating of the cartridge 20 in conjunction with the detection of the start of suction.
If the heating-on monitoring period ends, the control unit 116L obtains a positive result ("YES" in step 105).
If a positive result (YES in step 105) is obtained in step 6, the control unit 116L stops supplying power to the heating unit 121L-1 that heats the cartridge 20 (step 110).

<Heating control of the heating element in high mode>
Figures 13 and 14 are flowcharts illustrating an example of heating control of the cartridge 20 in high mode in Embodiment 1. The example in Figure 13 shows an example of heating control of the cartridge 20 when the heating of the capsule 30 is stopped or reduced at the time the heating of the cartridge 20 is started.
The process shown in Figure 13 is achieved through the execution of a program. This program is stored in the memory unit 114L (see Figure 3) and executed by the control unit 116L (see Figure 3).

The following describes the on/off control of heating performed in high mode, using Figures 13 and 14.
Figure 13 is a flowchart illustrating a portion of an example of setting the heating ON monitoring time and controlling the heating unit ON/OFF in Embodiment 1. Figure 14 is a flowchart illustrating the remaining portion of an example of setting the heating ON monitoring time and controlling the heating unit ON/OFF in Embodiment 1. The symbol S in the figures represents a step.
The processes shown in Figures 13 and 14 are realized through the execution of a program. This program is stored in the memory unit 114L (see Figure 3) and executed by the control unit 116L (see Figure 3).

First, the control unit 116L, which is operating in high mode, determines whether or not it has detected the start of suction (step 200).
While a negative result ("NO" in step 200) is obtained in step 200, the control unit 116L repeats the determination in step 200.

If a positive result ("YES" in step 200) is obtained in step 200, the control unit 116L determines whether or not the system is in sleep mode (step 201).

If suction is detected during sleep mode, the control unit 116L obtains a positive result (YES in step 201). In this case, the control unit 116L sets the heating on monitoring time (step 202), and then instructs the heating unit 121L-1, which heats the cartridge 20, to supply power (step 203). Since heating of the capsule 30 is also stopped during sleep mode, control to stop heating of the heating unit 121L-2, which heats the capsule 30, is unnecessary.
Next, the control unit 116L determines whether the heating-on monitoring period has ended (step 204).
If it is within the heating-on monitoring time, the control unit 116L obtains a negative result ("NO" in step 204) and determines whether or not it has detected the start of suction (step 205).

In this context, the initiation of suction refers to the start of multiple suction events within a single heating-on monitoring period.
If a negative result ("NO" in step 205) is obtained in step 205, the control unit 116L determines whether or not it has detected the end of suction (step 206).
If the end of suction is not detected, that is, if the user is continuing to suction, the control unit 116L obtains a negative result ("NO" in step 206) in step 206 and returns to step 204. In other words, as long as the end of suction is not detected, the control unit 116L repeats the loop processing from step 204 to step 206.

If the end of suction is detected within the heating ON monitoring time, the control unit 116L obtains a positive result ("YES" in step 206). If a positive result ("YES" in step 206) is obtained in step 206, the control unit 116L stops supplying power to the heating unit 121L-1 that heats the cartridge 20 (step 207). In other words, it stops heating the cartridge 20.
After this, the control unit 116L returns to step 204.
If a new suction is detected before the heating-on monitoring time has ended, the control unit 116L obtains a positive result ("YES" in step 205). In this case, the control unit 116L instructs the heating unit 121L-1 to heat the cartridge 20 to be powered (step 208).
After this, the control unit 116L returns to step 204.

Thus, while the heating ON monitoring time is not finished (while a negative result ("NO" in step 204) is obtained in step 204), the control unit 116L repeatedly stops the heating of the cartridge 20 in conjunction with the end of suction and starts the heating of the cartridge 20 in conjunction with the detection of the start of suction.
If the heating-on monitoring period ends, the control unit 116L obtains a positive result ("YES" in step 204).
If a positive result ("YES" in step 204) is obtained in step 204, the control unit 116L stops supplying power to the heating unit 121L-1 that heats the cartridge 20 (step 209).

This is because the heating-off period begins simultaneously with the end of the heating-on monitoring period. Therefore, even if the end of suction is not detected within the heating-on monitoring period, the heating of the cartridge 20 will be stopped.
Furthermore, if the end of suction is detected within the heating-on monitoring period and no new suction is detected thereafter, step 209 is also executed. In this case, step 209 may be skipped.

Following the execution of step 209, the control unit 116L instructs the heating unit 121L-2, which heats the capsule 30, to supply power (step 210).
This instruction enables switching between heating the cartridge 20 and heating the capsule 30.
In this embodiment, simultaneous heating of the cartridge 20 and capsule 30 is prohibited so as not to exceed the upper limit of the output current of the battery used as the power supply unit 111L (see Figure 3). Here, "simultaneous" does not mean that the heating timings do not overlap at all. Therefore, overlaps caused by, for example, errors in operating timing are permitted.
Furthermore, the power supplied to the capsule 30 may be reduced so that the power supplied to the cartridge 20 and the power supplied to the capsule 30 do not exceed the upper limit of the output current of the battery used as the power supply unit 111L (see Figure 3).

Next, the control unit 116L determines whether or not it has detected the start of suction (step 211). The target of detection is suction after the heating-on monitoring period has ended.
If a negative result ("NO" in step 211) is obtained in step 211, the control unit 116L determines whether or not the device is in sleep mode (step 212). Note that 30 seconds must elapse from the end of the heating-on monitoring period for the sleep state to begin.

Therefore, if the device has not yet entered sleep mode, the control unit 116L obtains a negative result in step 212 ("NO" in step 212). In this case, the control unit 116L determines whether or not the sleep start condition is met (step 213). That is, it determines whether or not 30 seconds have elapsed since the start of the heating off time.
While a negative result ("NO" in step 213) is obtained in step 213, the control unit 116L returns to step 211. This loop processing of steps 211, 212, and 213 continues until a positive result ("YES" in step 211) is obtained in step 211.
If the sleep start condition is met while the loop processing is running, the control unit 116L obtains a positive result (YES in step 212) in step 213.

In this case, the control unit 116L transitions to a sleep state (step 214), and then returns to step 211.
If the start of suction is not detected thereafter, the control unit 116L obtains a positive result ("YES" in step 213).
If a positive result ("YES" in step 213) is obtained in step 213, the control unit 116L determines whether the lock start condition is met (step 215). In this embodiment, the lock start condition is that 6 minutes have elapsed since the end of the heating on start time.

If a negative result ("NO" in step 215) is obtained in step 215, the control unit 116L returns to step 14. That is, it performs a loop process to determine whether suction is detected during sleep.
If a positive result (YES in step 215) is obtained in step 215, the control unit 116L transitions to a locked state (step 216) and terminates the heating control of the cartridge 20 and capsule 30.
In contrast, if suction is detected at any point, the control unit 116L obtains a positive result ("YES" in step 211) in step 211 and returns to step 201.
The determination in step 201 here is performed after at least one heating-on monitoring period has elapsed.

If a negative result ("NO" in step 201) is obtained in step 201, the control unit 116L sets the heating on monitoring time (step 217), then stops supplying power to the heating unit 121L-2 that heats the capsule 30 (step 218), and then instructs to supply power to the heating unit 121L-1 that heats the cartridge 20 (step 219). If aspiration is detected during sleep mode, step 218 can be skipped. Step 218 may also be executed during sleep mode.
After this, the control unit 116L proceeds to step 211 and repeats the heating control described above.

As described above, in this embodiment, if suction continues even after the heating-on monitoring time has elapsed, the heating of the cartridge 20 is stopped at the time the heating-on monitoring time has elapsed to ensure that time is available for the liquid aerosol source to be supplied to the liquid induction unit 122L. In this embodiment, the upper limit of the continuous heating time of the cartridge 20 is 2.4 seconds.
As a result, even if suction continues after the heating-on monitoring time has elapsed, it becomes possible to ensure that there is enough time for the liquid aerosol source to be supplied to the liquid induction unit 122L, thereby suppressing the occurrence of dry puffs caused by insufficient supply of the liquid aerosol source to the liquid induction unit 122L.

<Setting the heating on monitoring time and controlling the heating unit's on/off state>
In this embodiment, in addition to the heating period (heating on monitoring period), a heating off period may also be provided. Below, using Figures 15 and 16, the on/off control of heating performed in high mode when a heating off period is provided will be explained.
Figure 15 is a flowchart illustrating part of another example of setting the heating ON monitoring time and controlling the heating unit ON/OFF in Embodiment 1. Figure 16 is a flowchart illustrating the remaining part of another example of setting the heating ON monitoring time and controlling the heating unit ON/OFF in Embodiment 1. The symbol S in the figures represents a step.
The processes shown in Figures 15 and 16 are realized through the execution of a program. This program is stored in the memory unit 114L (see Figure 3) and executed by the control unit 116L (see Figure 3).

First, the control unit 116L, operating in high mode, determines whether or not it has detected the start of suction (step 1). The pressure sensor used for detecting suction requires approximately 60 ms to detect the start of suction. At its shortest, it is possible to detect the start of suction in approximately 20 ms. In this embodiment, the accuracy of detecting the start of suction is improved by repeating the 20 ms determination three times. The same applies to detecting the end of suction, which will be described later. That is, the control unit 116L improves the accuracy of detecting the end of suction by repeating the approximately 20 ms determination three times.
While a negative result ("NO" in Step 1) is obtained in Step 1, the control unit 116L repeats the determination in Step 1.

If a positive result ("YES" in Step 1) is obtained in Step 1, the control unit 116L determines whether or not it is during the heating off time (Step 2). As mentioned above, even if suction is detected during the heating off time, heating of the heating unit 121L-1 is prohibited.
Therefore, if a positive result ("YES" in step 2) is obtained in step 2, the control unit 116L returns to step 1.
On the other hand, if a negative result ("NO" in step 2) is obtained in step 2, the control unit 116L determines whether or not the device is in sleep mode (step 3).

If suction is detected during sleep mode, the control unit 116L obtains a positive result ("YES" in step 3). In this case, the control unit 116L sets the heating on monitoring time (step 4), and then instructs the heating unit 121L-1, which heats the cartridge 20, to supply power (step 5). Since heating of the capsule 30 is also stopped during sleep mode, control to stop heating of the heating unit 121L-2, which heats the capsule 30, is unnecessary.
Next, the control unit 116L determines whether the heating-on monitoring period has ended (step 6).
If the heating is within the monitoring period, the control unit 116L obtains a negative result in step 6 ("NO" in step 6) and determines whether or not it has detected the start of suction (step 7).

In this context, the initiation of suction refers to the start of multiple suction events within a single heating-on monitoring period.
If a negative result ("NO" in step 7) is obtained in step 7, the control unit 116L determines whether or not it has detected the end of suction (step 8).
If the end of suction is not detected, that is, if the user is continuing to suction, the control unit 116L obtains a negative result in step 8 ("NO" in step 8) and returns to step 6. In other words, as long as the end of suction is not detected, the control unit 116L repeats the loop processing from step 6 to step 8.

If the end of suction is detected within the heating ON monitoring time, the control unit 116L obtains a positive result ("YES" in step 8). If a positive result ("YES" in step 8) is obtained in step 8, the control unit 116L stops supplying power to the heating unit 121L-1 that heats the cartridge 20 (step 9). In other words, it stops heating the cartridge 20.
After this, the control unit 116L returns to step 6.
If a new suction is detected before the heating-on monitoring time has ended, the control unit 116L obtains a positive result in step 7 ("YES" in step 7). In this case, the control unit 116L instructs the heating unit 121L-1, which heats the cartridge 20, to supply power (step 10).
After this, the control unit 116L returns to step 6.

Thus, as long as the heating ON monitoring time is not finished (while a negative result ("NO" in step 6) is obtained in step 6), the control unit 116L repeatedly stops the heating of the cartridge 20 in conjunction with the end of suction and starts the heating of the cartridge 20 in conjunction with the detection of the start of suction.
If the heating-on monitoring period ends, the control unit 116L obtains a positive result ("YES" in step 6).
If a positive result ("YES" in step 6) is obtained in step 6, the control unit 116L stops supplying power to the heating unit 121L-1 that heats the cartridge 20 (step 11).

This is because the heating-off period begins simultaneously with the end of the heating-on monitoring period. Therefore, even if the end of suction is not detected within the heating-on monitoring period, the heating of the cartridge 20 will be terminated.
Incidentally, step 11 is also performed if the end of suction is detected within the heating-on monitoring time, and no new suction is detected thereafter. In this case, step 11 may be skipped.

Following the execution of step 11, the control unit 116L instructs the heating unit 121L-2, which heats the capsule 30, to supply power (step 12).
This instruction enables switching between heating the cartridge 20 and heating the capsule 30.
In this embodiment, simultaneous heating of the cartridge 20 and the capsule 30 is prohibited, or the heating of the capsule 30 is reduced, so as not to exceed the upper limit of the output current of the battery used as the power supply unit 111L (see Figure 3).
Here, "simultaneous" does not mean that the heating timings do not overlap at all. Therefore, overlaps caused by, for example, errors in operating timing are permissible. In addition, the heating unit 121L-2 that heats the solid aerosol source may be kept off at all times, and the power supplied to it may be reduced. That is, some or all of the heating period by heating unit 121L-1 and heating period by heating unit 121L-2 may be allowed to overlap. However, if simultaneous heating is permitted, it is desirable to make the maximum power supplied to heating units 121L-1 and 121L-2 during simultaneous heating smaller than the maximum power supplied during individual heating, so as not to exceed the upper limit of the battery output current.
Furthermore, the control unit 116L starts the heating off time (step 13).

Next, the control unit 116L determines whether or not it has detected the start of suction (step 14). The target of detection is suction after the heating ON monitoring period has ended.
If a negative result ("NO" in step 14) is obtained in step 14, the control unit 116L determines whether or not the heating off time has elapsed (step 15).
If the heating off time has not elapsed, the control unit 116L obtains a negative result ("NO" in step 15) in step 15 and returns to step 14. If no suction is detected before the heating off time has elapsed, the loop processing of steps 14 and 15 is repeated.
If the heating off time has elapsed, the control unit 116L obtains a positive result ("YES" in step 15). In this case, the control unit 116L determines whether or not the device is in sleep mode (step 16). 30 seconds must elapse from the start of the heating off time for the sleep state to begin.

Therefore, if the device has not yet entered sleep mode, the control unit 116L obtains a negative result ("NO" in step 16). In this case, the control unit 116L determines whether or not the sleep start condition is met (step 17). That is, it determines whether or not 30 seconds have elapsed since the start of the heating off time.
While a negative result ("NO" in step 17) is obtained in step 17, the control unit 116L returns to step 14. This loop processing of steps 14, 15, 16, and 17 continues until a positive result ("YES" in step 14) is obtained in step 14.
If the sleep start condition is met during the execution of the loop process, the control unit 116L obtains a positive result ("YES" in step 17).

In this case, the control unit 116L transitions to a sleep state (step 18), and then returns to step 14.
If the start of suction is not detected thereafter, the control unit 116L obtains a positive result ("YES" in step 16).
If a positive result ("YES" in step 16) is obtained in step 16, the control unit 116L determines whether or not the lock start condition is met (step 19). In this embodiment, the lock start condition is that 6 minutes have elapsed from the start of the heating off time.

If a negative result ("NO" in step 19) is obtained in step 19, the control unit 116L returns to step 14. That is, it executes a loop process to determine whether suction is detected during sleep mode.
If a positive result (YES in step 19) is obtained in step 19, the control unit 116L transitions to a locked state (step 20) and terminates the heating control of the cartridge 20 and capsule 30.
In contrast, if suction is detected at any point, the control unit 116L obtains a positive result ("YES" in step 14) in step 14 and returns to step 2.
The determination in step 2 here is performed after at least one heating-on monitoring period has elapsed.

In this case as well, if the detection of the start of suction occurs within the heating off time, the control unit 116L obtains a negative result ("NO" in step 2) in step 2 and returns to step 1.
Furthermore, if the start of suction is detected after the heating off time has elapsed, the control unit 116L obtains a negative result ("NO" in step 2) in step 2 and proceeds to the determination in step 3.
If the device has not yet entered sleep mode after the heating-off time has elapsed, the control unit 116L obtains a negative result ("NO" in step 3).

If a negative result ("NO" in step 3) is obtained in step 3, the control unit 116L sets the heating ON monitoring time (step 21), then stops supplying power to the heating unit 121L-2 that heats the capsule 30 (step 22), and then instructs to supply power to the heating unit 121L-1 that heats the cartridge 20 (step 23). If aspiration is detected during sleep mode, step 22 can be skipped. Step 22 may also be executed during sleep mode.
After this, the control unit 116L proceeds to step 6 and repeats the heating control described above.

As described above, in this embodiment, even if the user continues to inhale after the heating-on monitoring time has elapsed, the heating of the cartridge 20 is stopped to ensure that time is available for the liquid aerosol source to be supplied to the liquid induction unit 122L. In this embodiment, the upper limit of the continuous heating time of the cartridge 20 is 2.4 seconds, and even if the user continues to inhale after that continuous heating time has elapsed, the heating of the cartridge 20 is stopped.
As a result, it becomes possible to ensure sufficient time for the liquid aerosol source to be supplied to the liquid induction unit 122L, thereby suppressing the occurrence of dry puffs caused by insufficient supply of the liquid aerosol source to the liquid induction unit 122L.

<Capsule heating control according to measured temperature>
The following describes an example of heating control for capsule 30 in high mode.
As mentioned above, in high mode, the temperature of the capsule 30 is heated to a target temperature (e.g., 60°C), thereby controlling the amount of aerosol generated from solid matter compared to normal mode.

Figure 17 illustrates an example of heating control for capsule 30. In Figure 17, the symbol S also represents a step.
The heating control shown in Figure 17 is performed during the period in Figures 5 to 11 when power is supplied to the heating unit 121L-2 that heats the capsule 30.
When heating of capsule 30 is started, the control unit 116L repeats the process of steps 31-32-33 or step 31-32-34, for example, at a cycle of 20 ms.
Here, 20 ms is just one example of a unit period. Note that 20 ms is just an example, and other values, such as 50 ms, may also be used.

First, the control unit 116L acquires the temperature T of the thermistor 112L-1 in a unit period cycle (step 31). As described above, the thermistor 112L-1 is mounted on the outer surface of the heating unit 121L-2 that heats the capsule 30.
Next, the control unit 116L determines whether the acquired temperature T is less than the first temperature T1 (step 32). The first temperature T1 is the target temperature (i.e., the target temperature). In this embodiment, the first temperature T1 is 60°C.

If the acquired temperature T is less than the first temperature T1, the control unit 116L obtains a positive result in step 32 ("YES" in step 32) and instructs the heating unit 121L-2 that heats the capsule 30 to supply power (step 33). In other words, it is controlled to be in a power-on state.
On the other hand, if the acquired temperature T is greater than or equal to temperature T1, the control unit 116L obtains a negative result in step 32 ("NO" in step 32) and stops supplying power to the heating unit 121L-2 that heats the capsule 30 (step 34). In other words, it is controlled to an off state.

After step 33 or step 34 is executed, the control unit 116L returns to step 31. The loop process shown in Figure 17 is stopped when the power supply to the heating unit 121L-2 that heats the capsule 30 is stopped.
In other words, in this embodiment, power is supplied to the heating unit 121L-2 until the temperature of the capsule 30 reaches a first temperature T1. After the temperature of the capsule 30 reaches the first temperature T1, power is supplied to the heating unit 121L-2 and then stopped, depending on the acquired temperature T1.

<Embodiment 2>
The aerosol generator 10 (see Figure 1) assumed in Embodiment 2 differs from Embodiment 1 in that the heating of the capsule 30 during the heating-on monitoring time is controlled in conjunction with the heating of the cartridge 20.
The external appearance and internal configuration of the aerosol generating device 10 assumed in this embodiment are the same as those of the aerosol generating device 10 described in Embodiment 1.

<Setting the heating on monitoring time and controlling the heating unit's on/off state>
Figure 18 illustrates an example of the heating timing of the cartridge 20 and capsule 30 in Embodiment 2. (A) shows the aspiration period, (B) shows an example of the heating timing of the cartridge 20, and (C) shows an example of the heating timing of the capsule 30.

The suction pattern shown in Figure 18(A) is the same as the suction pattern shown in Figure 6(A). That is, two suctions are detected in one suction cycle, and the second suction ends before the heating-on monitoring time has elapsed. Therefore, during the heating-on monitoring time, as shown in Figure 18(B), heating of the cartridge 20 is performed in conjunction with the duration of the detected suctions.

The difference lies in the heating control of capsule 30.
In this embodiment, as shown in Figure 18(C), the heating control of the capsule 30 is performed during the period when the heating of the cartridge 20 is controlled to be off. Also, during the period when the heating of the cartridge 20 is controlled to be on, the heating of the capsule 30 is stopped (off control) or reduced.
Furthermore, the control of the cartridge 20's heating takes precedence over the control of the capsule 30's heating. In other words, when the start of aspiration is detected, the heating of the capsule 30 is stopped (off control) or reduced, and when the end of aspiration is detected, the heating of the capsule 30 is started (on control) or increased.
In the case of Figure 18(A), the second aspiration in the same aspiration cycle is completed before the heating-on monitoring time has elapsed, so heating of the capsule 30 starts before the heating-on monitoring time has ended.

Figure 19 is a flowchart illustrating a part of an example of setting the heating ON monitoring time and controlling the heating unit ON/OFF in Embodiment 2. Note that Figure 19 is denoted with reference numerals corresponding to the parts in Figure 14.
In this embodiment, the control unit 116L (see Figure 3) executes the flowchart shown in Figure 19, as a continuation of the flowchart shown in Figure 13.

In Figure 19, one difference is the addition of control over the heating of capsule 30 during the heating-on monitoring period.
The first difference is that step 220 is performed between step 205 and step 208. That is, when the control unit 116L detects the start of suction and obtains a positive result in step 205 ("YES" in step 205), it stops supplying power to the heating unit 121L-2 that heats the capsule 30 (step 220), and then instructs to supply power to the heating unit 121L-1 that heats the cartridge 20 (step 208).

The second difference is that step 221 is performed after step 209. That is, when the control unit 116L detects the end of aspiration and obtains a positive result in step 205 ("YES" in step 205), it stops supplying power to the heating unit 121L-1 that heats the cartridge 20 (step 209), and then instructs to supply power to the heating unit that heats the capsule (step 221).
These controls enable the switching of heating between capsule 30 and cartridge 20 within the heating-on monitoring time.

<Setting the heating off time and controlling the heating unit's on/off state>
Figure 20 illustrates another example of the heating timing of the cartridge 20 and capsule 30 in Embodiment 2. (A) shows the suction period, (B) shows an example of the heating timing of the cartridge 20, and (C) shows an example of the heating timing of the capsule 30. The suction pattern shown in Figure 20(A) is the same as the suction pattern shown in Figure 9(A). That is, two suctions are detected in one suction cycle, and the second suction ends before the heating-on monitoring time has elapsed. Therefore, within the heating-on monitoring time, as shown in Figure 20(B), heating of the cartridge 20 is performed in conjunction with the detected suction period.

The difference lies in the heating control of capsule 30.
In this embodiment, as shown in Figure 20(C), the heating control of the capsule 30 is performed during the period when the heating of the cartridge 20 is controlled to be off. Conversely, the heating of the capsule 30 is controlled to be off during the period when the heating of the cartridge 20 is controlled to be on.
Furthermore, the control of the cartridge 20's heating takes precedence over the control of the capsule 30's heating. In other words, when the start of aspiration is detected, the heating of the capsule 30 is turned off, and when the end of aspiration is detected, the heating of the capsule 30 is turned on.
In the case of Figure 20(A), the second aspiration in the same aspiration cycle is completed before the heating-on monitoring time has elapsed, so heating of the capsule 30 starts before the heating-on monitoring time ends and continues during the heating-off time.

Figure 21 is a flowchart illustrating the setting of the heating ON monitoring time and a portion of the on/off control of the heating unit in Embodiment 2. Note that Figure 21 is denoted with reference numerals corresponding to the parts corresponding to those in Figure 16.
In this embodiment, the control unit 116L (see Figure 3) executes the flowchart shown in Figure 21, as a continuation of the flowchart shown in Figure 15.

In Figure 21, one difference is the addition of control over the heating of capsule 30 during the heating-on monitoring period.
The first difference is that step 25 is performed between step 7 and step 10. That is, when the control unit 116L detects the start of suction and obtains a positive result in step 7 ("YES" in step 7), it stops supplying power to the heating unit 121L-2 that heats the capsule 30 (step 25), and then instructs to supply power to the heating unit 121L-1 that heats the cartridge 20 (step 10).

The second difference is that step 26 is performed after step 9. That is, when the control unit 116L detects the end of aspiration and obtains a positive result in step 8 ("YES" in step 8), it stops supplying power to the heating unit 121L-1 that heats the cartridge 20 (step 9), and then instructs to supply power to the heating unit that heats the capsule (step 26).
These controls enable the switching of heating between capsule 30 and cartridge 20 within the heating-on monitoring time.

<Embodiment 3>
The aerosol generating device 10 (see Figure 1) assumed in Embodiment 3 differs from Embodiments 1 and 2 in that it variably controls the length of the heating time when heating the capsule 30 according to the measured temperature T.
The external appearance and internal configuration of the aerosol generating device 10 assumed in this embodiment are the same as those of the aerosol generating device 10 described in Embodiment 1.

Figure 22 illustrates an example of heating control of the capsule 30 in Embodiment 3. Figure 22 is denoted with reference numerals corresponding to parts in Figure 17.
The heating control shown in Figure 22 is performed during the period when power is supplied to the heating unit 121L-2 that heats the capsule 30, as shown in Figures 5 to 11 and 20.
When heating of capsule 30 is started, the control unit 116L repeats the process of steps 31-32-35, or steps 31-32-36-37, or steps 31-32-36-38, for example, at a cycle of 20 ms.

First, the control unit 116L acquires the temperature T of the thermistor 112L-1, which is mounted on the outer surface of the heating unit 121L-2 that heats the capsule 30, in a unit period cycle (step 31).
Next, the control unit 116L determines whether the acquired temperature T is less than the first temperature T1 (step 32).
If the acquired temperature T is greater than or equal to the first temperature T1, the control unit 116L obtains a negative result in step 32 ("NO" in step 32) and controls the duty cycle of the power supply pulses supplied to the heating unit 121L-2 that heats the capsule 30 to a second value (step 35). In other words, the control unit 116L stops or reduces the power supply to the heating unit 121L-2 that heats the capsule 30. This control is the same as in step 34 (see Figure 17). The second value is, for example, 0%, but is not limited to 0% and can be any value.

On the other hand, if the acquired temperature T is less than the first temperature T1, the control unit 116L obtains a positive result ("YES" in step 32). In this case, the control unit 116L determines whether the measured temperature T is less than or equal to the second temperature T2 (step 36).
Here, the second temperature T2 is lower than the first temperature T1. For example, the second temperature T2 is set to 55°C. 55°C is just an example; other values are also acceptable.
The second temperature T2 is set before reaching the first temperature T1, with the purpose of reducing the rate at which the heating unit 121L-2 rises and suppressing overheating that significantly exceeds the target first temperature.

If the measured temperature T is less than or equal to the second temperature T2, the control unit 116L obtains a positive result ("YES" in step 36). In this case, the control unit 116L controls the duty cycle of the power supply pulses supplied to the heating unit 121L-2 that heats the capsule 30 to a first value (step 37). This control is the same as in step 33 (see Figure 17). The first value is, for example, 100%, but is not limited to 100% and can be any value. The second value is a value lower than the first value.
On the other hand, if the measured temperature T is greater than the second temperature T2, the control unit 116L obtains a negative result ("NO" in step 36) in step 36. In this case, the control unit 116L controls the duty cycle of the power supply pulses supplied to the heating unit 121L-2 that heats the capsule 30 to an intermediate value (step 38). The intermediate value is, for example, 50%. The intermediate value is lower than the first value and higher than the second value.

As mentioned above, the purpose of changing the duty cycle to an intermediate value (e.g., 50%) is to reduce the rate at which the temperature rises. In this embodiment, by changing the duty cycle to an intermediate value (e.g., 50%), the amount of power supplied to the heating unit 121L-2 per unit period is reduced (e.g., halved).
Furthermore, if the amount of power supplied to the heating unit 121L-2 during a unit period decreases, the duty cycle is not limited to 50%. For example, it could be 40% or 30%. 50% is just one example of a predetermined intermediate value.
Incidentally, in the case of Figure 22, three types of duty cycles for the power supply pulse are used, switching between 0%, 50%, and 100%, but the intermediate value of 50% may also be varied. For example, the duty cycle may be varied according to the temperature difference between the acquired temperature T and the target first temperature T1. Specifically, the larger the temperature difference, the closer the duty cycle may be to 100%, and the smaller the temperature difference, the closer the duty cycle may be to 0%.

<Embodiment 4>
Embodiment 4 describes a case in which different heating controls are applied depending on whether the temperature T at the start of heating the capsule 30 is high or low.
The external appearance and internal configuration of the aerosol generating device 10 assumed in this embodiment are the same as those of the aerosol generating device 10 described in Embodiment 3.
Figure 23 illustrates an example of heating control of the capsule 30 in Embodiment 4. (A) shows the temperature change at the start of heating when the temperature T measured at the start of heating of the capsule 30 is higher than the third temperature T3, and (B) shows the temperature change at the start of heating when the temperature T measured at the start of heating of the capsule 30 is lower than the third temperature T3.

In Figures 23(A) and (B), the horizontal axis represents time, and the vertical axis represents temperature.
The third temperature T3 is the control switching criterion and is set to, for example, 40°C. 40°C is just an example, and other values may be used.
Even when the temperature T0 at the start of heating (hereinafter referred to as the "start temperature") is low, if the capsule 30 is heated under the same conditions as when the start temperature T0 is high, the time it takes for the temperature T of the heating unit 121L-1 to reach the target first temperature T1 will be longer. In other words, the time it takes for the amount of aerosol generated from the solid material to increase will be longer.

Therefore, in this embodiment, a control is employed in which, when the starting temperature T0 is lower than the third temperature T3, the amount of power WH supplied to the heating unit 121L-2 that heats the capsule 30 is increased compared to the amount of power WL supplied to the heating unit 121L-2 when the starting temperature T0 is higher than the third temperature T3.
For example, the rate of temperature increase in Figure 23(B) is higher than that in Figure 23(A). Therefore, the time required to reach the target first temperature T1 is approximately the same in Figure 23(A) and Figure 23(B). However, in reality, the time required to reach the first temperature T1 (hereinafter referred to as "heating time") is not necessarily the same.

Figure 24 is a flowchart illustrating an example of setting the heating ON monitoring time and controlling the heating unit ON/OFF in Embodiment 4. Figure 24 is denoted with reference numerals corresponding to the parts that correspond to those in Figure 22.
The control unit 116L, which has started heating control of the capsule 30, acquires the starting temperature T0 of the thermistor 112L-1 at the start of heating (step 41). The measurement of the starting temperature T0 is performed only once at the start of the heating ON monitoring period.
Next, the control unit 116L acquires the temperature T of the thermistor 112L-1 in a unit period cycle (step 31).

When the temperature T is measured, the control unit 116L determines whether the acquired temperature T is equal to or greater than the first temperature T1 (step 32).
Immediately after heating begins, a positive result ("YES" in step 32) is obtained in step 32.
If a positive result ("YES" in step 32) is obtained in step 32, the control unit 116L determines whether the measured temperature T is less than or equal to the second temperature T2 (step 36).
If a positive result ("YES" in step 36) is obtained in step 36, the control unit 116L determines whether the starting temperature T0 is equal to or greater than the third temperature T3 (step 42).

If the starting temperature T0 is equal to or greater than the third temperature T3, the control unit 116L obtains a positive result in step 42 and controls the duty cycle of the power supply pulses supplied to the heating unit 121L-2 that heats the capsule 30 to a fourth value (step 43). The fourth value is, for example, 80%, but is not limited to 80% and can be any value. The fourth value is lower than the first value, but higher than the intermediate value.
In the case of Figure 24, the amount of power supplied to the heating unit 121L-2 is increased or decreased by switching the duty cycle. Therefore, when the starting temperature T0 is higher than the third temperature T3, the duty cycle is set to 80% of the unit period. Note that 80% is just an example; for example, 70% or 75% may also be used.
After step 43 is executed, the control unit 116L returns to step 31.

On the other hand, if the starting temperature T0 is less than the third temperature T3, the control unit 116L obtains a negative result ("NO" in step 42) and controls the duty cycle of the power supply pulses supplied to the heating unit 121L-2 that heats the capsule 30 to a first value (e.g., 100%) (step 37).
The first value of the duty cycle is, for example, 100%, but 100% is just an example, and other values may also be used. In this embodiment, the duty cycle is set to 100% in order to maximize the rate of increase of temperature T.
In the case of Figure 24, the duty cycle of step 44 is, for example, 20% higher than the duty cycle of step 43, so the rate of temperature increase of the heating section 121L-2 is larger. As a result, the temperature of the capsule 30 can be brought closer to the target temperature in a shorter time.
After step 44 is completed, the control unit 116L returns to step 31.

If a negative result ("NO" in step 36) is obtained in step 36, that is, if the measured temperature T exceeds the second temperature T2, the control unit 116L controls the duty cycle of the power supply pulses supplied to the heating unit 121L-2 that heats the capsule to an intermediate value (for example, 50%) (step 38).
After step 38 is completed, the control unit 116L returns to step 31.
Eventually, the temperature T of the heating unit 121L-2 reaches the target first temperature T1. In this case, the control unit 116L obtains a negative result in step 32 and controls the duty cycle of the power supply pulses supplied to the heating unit 121L-2 that heats the capsule to 0% (step 35).
After step 35 is executed, the control unit 116L returns to step 31.

If the aerosol generator 10 is not used for an extended period, the temperatures of the capsule 30 and the heating unit 121L-2 are expected to approach the ambient temperature.
Therefore, if the heating control described in this embodiment is not employed, when the ambient temperature is low, there is a problem that it will take a long time to reach the first temperature T1 even if heating of the capsule 30 is started, that is, the amount of aerosol generated at the start of inhalation tends to be small.
However, by employing the heating control described in this embodiment, it becomes possible to increase the amount of aerosol generated immediately after the start of suction, thereby enhancing user satisfaction.

Furthermore, increasing the amount of power supplied to the heating unit 121L-2 is possible through means other than variable control of the duty cycle.
For example, the duty cycle of the power supply pulse in step 37 and step 43 may both be set to 100%, and the maximum value V1 of the drive voltage applied to the heating unit 121L-2 in step 37 may be set to a value greater than the maximum value V2 of the drive voltage applied to the heating unit 121L-2 in step 43.

<Embodiment 5>
Embodiment 5 describes another example of applying different heating controls when the temperature T at the start of heating the capsule 30 is high and when it is low.
The external appearance and internal configuration of the aerosol generating device 10 assumed in this embodiment are the same as those of the aerosol generating device 10 described in Embodiment 3.

Figure 25 illustrates an example of heating control of the capsule 30 in Embodiment 5. (A) shows the temperature change at the start of heating when the temperature T measured at the start of heating of the capsule 30 is higher than the third temperature T3, and (B) shows the temperature change at the start of heating when the temperature T measured at the start of heating of the capsule 30 is lower than the third temperature T3.
In Figures 25(A) and (B), the horizontal axis represents time, and the vertical axis represents temperature.
The fourth temperature T4 is a target temperature temporarily set to increase the rate of temperature rise during heating control of the heating unit 121L-2. The fourth temperature T4 is, for example, 70°C. Note that 70°C is just an example.

In this embodiment, if the starting temperature T0 is lower than the third temperature T3, the target temperature for heating is set to a fourth temperature T4, which is higher than the first temperature T1.
In other words, if the starting temperature T0 is lower than the third temperature T3, the heating of the heating unit 121L-2 is controlled with a target temperature of a fourth temperature T4, which is higher than the first temperature T1.
In this embodiment, if the starting temperature T0 is lower than the third temperature T3, a maximum voltage V1 determined by the temperature difference between the fourth temperature T4 and the starting temperature T0 at the start of heating is applied to the heating unit 121L-2. Note that the maximum voltage V1 is higher than the maximum voltage V2 used when the starting temperature T0 is higher than the third temperature T3.

<Control Example>
Below, we will describe control example 1, which controls the heating of the heating unit 121L-2 by turning it on and off, and control example 2, which implements the heating of the heating unit 121L-2 as a control of the duty cycle.

<Control Example 1>
Figure 26 is a flowchart illustrating an example of setting the heating ON monitoring time and controlling the heating unit ON/OFF in Embodiment 5. Figure 26 is denoted with reference numerals corresponding to the parts that correspond to those in Figure 24.
The control unit 116L, which has started heating control of the capsule 30, obtains the starting temperature T0 of the thermistor 112L-1 at the start of heating (step 41).
Next, the control unit 116L determines whether the starting temperature T0 is less than or equal to the third temperature T3 (step 45).
If a positive result ("YES" in step 45) is obtained in step 45, the control unit 116L sets the target temperature TT to the fourth temperature T4 (step 46).
On the other hand, if a negative result ("NO" in step 45) is obtained in step 45, the control unit 116L sets the target temperature TT to the first temperature T1 (step 47).

Once the target temperature TT is set, the control unit 116L acquires the temperature T of the thermistor 112L-1 in a unit period cycle (step 31).
When the temperature T is measured, the control unit 116L determines whether the acquired temperature T is less than the first temperature T1 (step 32).
Immediately after heating begins, a positive result ("YES" in step 32) is obtained in step 32.
If a positive result ("YES" in step 32) is obtained in step 32, the control unit 116L determines whether the target temperature TT is the first temperature T1 or not (step 48).

If a positive result ("YES" in step 48) is obtained in step 48, that is, if the target temperature TT is the first temperature T1, the control unit 116L supplies a predetermined maximum voltage V2 to the heating unit 121L-2 that heats the capsule 30 (step 49).
Heating at the maximum voltage V2 is the standard heating example shown in Figure 25(A).
After step 49 is executed, the control unit 116L returns to step 31.
On the other hand, if a negative result ("NO" in step 48) is obtained in step 48, that is, if the target temperature TT is the fourth temperature T4, the control unit 116L supplies the heating unit 121L-2 that heats the capsule 30 with the maximum voltage V1 (>V2) determined by the temperature difference between the target temperature TT and the starting temperature T0 (step 50).
After step 50 is completed, the control unit 116L returns to step 31.

In step 50, the target temperature TT is the fourth temperature T4.
Therefore, the lower the starting temperature T0, the larger the maximum voltage V1 will be. For example, the maximum voltage V1 when the temperature difference is 50°C is greater than the maximum voltage V1 when the temperature difference is 40°C. This supply of the maximum voltage V1 continues until a negative result ("NO" in step 32) is obtained in step 32, that is, until the measured temperature T is equal to or greater than the first temperature T1.
When the acquired temperature T becomes equal to or greater than temperature T1, the control unit 116L obtains a negative result in step 32 ("NO" in step 32) and stops supplying power to the heating unit 121L-2 that heats the capsule 30 (step 34). In other words, it is controlled to an off state.

<Control Example 2>
Figure 27 is a flowchart illustrating another example of setting the heating ON monitoring time and controlling the heating unit ON/OFF in Embodiment 5. Figure 27 is denoted with reference numerals corresponding to the parts in Figures 24 and 26.
In the case of control example 2, the control unit 116L, which has started the heating control of the capsule 30, obtains the starting temperature T0 of the thermistor 112L-1 at the start of heating (step 41).
Next, the control unit 116L determines whether the starting temperature T0 is less than or equal to the third temperature T3 (step 45).
If a positive result ("YES" in step 45) is obtained in step 45, the control unit 116L sets the target temperature TT to the fourth temperature T4 (step 46).
On the other hand, if a negative result ("NO" in step 45) is obtained in step 45, the control unit 116L sets the target temperature TT to the first temperature T1 (step 47).

Once the target temperature TT is set, the control unit 116L acquires the temperature T of the thermistor 112L-1 in a unit period cycle (step 31).
When the temperature T is measured, the control unit 116L determines whether the acquired temperature T is less than the first temperature T1 (step 32).
Immediately after heating begins, a positive result ("YES" in step 32) is obtained in step 32.
If a positive result ("YES" in step 32) is obtained in step 32, the control unit 116L determines whether the acquired temperature T is less than or equal to the second temperature T2 (step 36).
Immediately after heating begins, a positive result ("YES" in step 36) is obtained in step 36.

If a positive result ("YES" in step 36) is obtained in step 36, the control unit 116L determines whether the target temperature TT is the first temperature T1 or not (step 48).
If a positive result ("YES" in step 48) is obtained in step 48, that is, if the target temperature TT is the first temperature T1, the control unit 116L sets the maximum voltage supplied to the heating unit 121L-2 that heats the capsule to V2 and sets the duty cycle of the power supply pulse to 100% (step 51).
After step 51 is executed, the control unit 116L returns to step 31. The supply of this maximum voltage V2 continues until a negative result ("NO" in step 36) is obtained in step 36.

On the other hand, if a negative result ("NO" in step 48) is obtained in step 48, that is, if the target temperature TT is the fourth temperature T4, the control unit 116L sets V1 (>V2), which is determined by the temperature difference between the target temperature TT and the starting temperature T0, as the maximum voltage to be supplied to the heating unit 121L-2 that heats the capsule, and sets the duty cycle of the power supply pulse to 100% (step 52).
After step 52 is executed, the control unit 116L returns to step 31. The supply of this maximum voltage V1 continues until a negative result ("NO" in step 36) is obtained in step 36.

If a negative result ("NO" in step 36) is obtained in step 36, that is, if the acquired temperature T exceeds the second temperature T2, the control unit 116L sets the maximum voltage supplied to the heating unit 121L-2 that heats the capsule 30 to V2 and controls the duty cycle of the power supply pulse to 50% (step 53). This control reduces the rate at which the temperature of the heating unit 121L-2 rises.
After step 53 is executed, the control unit 116L returns to step 31.
Furthermore, if the acquired temperature T becomes equal to or greater than temperature T1, the control unit 116L obtains a negative result ("NO" in step 32) and controls the duty cycle of the power supply pulse supplied to the heating unit 121L-2 that heats the capsule 30 to 0% (step 35). In other words, it is controlled to an off state.

<Other Embodiments>
(1) Although embodiments of the present invention have been described above, the technical scope of the present invention is not limited to the embodiments described above. It is clear from the claims that various modifications or improvements made to the embodiments described above are also included in the technical scope of the present invention.

(2) In the above-described embodiment, the case in which the aerosol generator 10 (see Figure 1) is an e-cigarette was described, but it may also be a medical inhaler such as a nebulizer. If the aerosol generator 10 is a nebulizer, the liquid aerosol source or solid aerosol source may include a drug for the patient to inhale.

(3) In the above-described embodiment, aerosols are generated by heating a liquid aerosol source in the heating unit 121L-1, but aerosols may also be generated by vibrating the liquid aerosol source with an oscillator. Alternatively, the heating unit 121L-1 may be configured as a susceptor made of a conductive material such as metal, and aerosols may be generated by inductively heating this susceptor with an electromagnetic induction source.

(4) In the above-described embodiment, a solid aerosol source is heated in the heating unit 121L-2 to generate an aerosol. However, a susceptor made of a conductive material such as metal may be placed inside the capsule-type container 130L, and this susceptor may be inductively heated by an electromagnetic induction source to generate an aerosol.

(5) In the above-described embodiment, simultaneous heating of heating unit 121L-1 and heating unit 121L-2 in high mode is prohibited, but simultaneous heating may be permitted. That is, some or all of the heating period by heating unit 121L-1 and the heating period by heating unit 121L-2 may be allowed to overlap. When simultaneous heating is permitted, it is desirable to make the maximum power supplied to heating units 121L-1 and 121L-2 during simultaneous heating less than the maximum power supplied during individual heating, so as not to exceed the upper limit of the battery output current.

10...Aerosol generator, 11...Device body, 11A...Display, 11B...Operation buttons, 12...Capsule holder, 20...Cartridge, 30...Capsule, 112L-1, 112L-2...Thermistor, 121L-1, 121L-2...Heating section

Claims (20)

A first heating unit for heating a first aerosol source,
A first sensor that detects user suction,
A control unit that controls the supply of power to the first heating unit,
It has,
The control unit,
If new suction by the user is detected after the end of the previous monitoring period , a predetermined monitoring period of a set length is set.
If the first sensor detects multiple suctions within the monitoring period, the heating and stopping of the first aerosol source are controlled in conjunction with each detected suction.
Aerosol generator. The control unit, once the monitoring period has elapsed, stops heating the first aerosol source even if the detection of the user's inhalation continues.
The aerosol generating apparatus according to claim 1. The control unit,
Even if the first sensor detects the start of a new suction within the aforementioned monitoring period, the monitoring period will not be reset.
The aerosol generating apparatus according to claim 1 or 2. The system further comprises a second heating unit for heating a second aerosol source,
The control unit,
During the aforementioned monitoring period, the heating of the second aerosol source is stopped or reduced.
An aerosol generating apparatus according to any one of claims 1 to 3. The control unit,
During the monitoring period, while the heating of the first aerosol source is stopped, the second aerosol source is heated.
The aerosol generating apparatus according to claim 4. The control unit,
During the aforementioned monitoring period, when power is supplied to the first heating unit, the power supply to the second heating unit is stopped or reduced.
The aerosol generating apparatus according to claim 5. The system further includes a second sensor for measuring the temperature of the second aerosol source,
The control unit,
The power supply to the second heating unit is controlled according to the relationship between the temperature measured by the second sensor and the target first temperature.
The aerosol generating apparatus according to claim 4. The control unit,
Depending on the relationship between the temperature measured by the second sensor and the first temperature, the power supply to the second heating unit is turned on or off within each unit period in a unit period cycle.
The aerosol generating apparatus according to claim 7. The control unit,
Depending on the relationship between the temperature measured by the second sensor and the first temperature, the duty cycle of the pulse that provides power to the second heating unit is controlled in a unit period period.
The aerosol generating apparatus according to claim 7. A first heating unit for heating a first aerosol source,
A first sensor that detects user suction,
A control unit that controls the supply of power to the first heating unit,
A second heating unit for heating a second aerosol source,
A second sensor for measuring the temperature of the second aerosol source,
It has,
The control unit,
When the user's suction is detected, a predetermined monitoring period is set.
During the monitoring period, the heating and stopping of the first aerosol source are controlled in conjunction with the detection of suction by the first sensor.
The control unit,
During the aforementioned monitoring period, the heating of the second aerosol source is stopped or reduced .
The control unit,
The power supply to the second heating unit is controlled according to the relationship between the temperature measured by the second sensor and the target first temperature.
The control unit,
Depending on the relationship between the temperature measured by the second sensor and the first temperature, the duty cycle of the pulse that provides power to the second heating unit is controlled in a unit period period.
The control unit,
When a second temperature lower than the first temperature is set, and the temperature measured by the second sensor is less than or equal to the second temperature, the duty cycle is controlled to the first value.
If the temperature measured by the second sensor exceeds the first temperature, the duty cycle is controlled to a second value lower than the first value.
If the temperature measured by the second sensor is midway between the second temperature and the first temperature, the duty cycle is controlled to a predetermined intermediate value that is lower than the first value and higher than the second value .
Aerosol generator. A first heating unit for heating a first aerosol source,
A first sensor that detects user suction,
A control unit that controls the supply of power to the first heating unit,
A second heating unit for heating a second aerosol source,
A second sensor for measuring the temperature of the second aerosol source,
It has,
The control unit,
When the user's suction is detected, a predetermined monitoring period is set.
During the monitoring period, the heating and stopping of the first aerosol source are controlled in conjunction with the detection of suction by the first sensor.
The control unit,
During the aforementioned monitoring period, the heating of the second aerosol source is stopped or reduced .
The control unit,
The power supply to the second heating unit is controlled according to the relationship between the temperature measured by the second sensor and the target first temperature.
The control unit,
When a second temperature lower than the first temperature and a third temperature even lower than the second temperature are set, if the temperature measured by the second sensor at the start of heating by the second heating unit is lower than the third temperature,
The amount of power supplied to the second heating unit is increased to the amount of power supplied to the second heating unit when the temperature measured by the second sensor at the start of heating by the second heating unit is higher than the temperature of the third heating unit .
Aerosol generator. A first heating unit for heating a first aerosol source,
A first sensor that detects user suction,
A control unit that controls the supply of power to the first heating unit,
A second heating unit for heating a second aerosol source,
A second sensor for measuring the temperature of the second aerosol source,
It has,
The control unit,
When the user's suction is detected, a predetermined monitoring period is set.
During the monitoring period, the heating and stopping of the first aerosol source are controlled in conjunction with the detection of suction by the first sensor.
The control unit,
During the aforementioned monitoring period, the heating of the second aerosol source is stopped or reduced .
The control unit,
The power supply to the second heating unit is controlled according to the relationship between the temperature measured by the second sensor and the target first temperature.
The control unit,
When a second temperature lower than the first temperature and a third temperature even lower than the second temperature are set, if the temperature measured by the second sensor at the start of heating by the second heating unit is lower than the third temperature,
The target temperature is set to a fourth temperature that is higher than the first temperature.
When the temperature measured by the second sensor reaches the second temperature, the target temperature is changed from the fourth temperature to the first temperature .
Aerosol generator. A method for controlling an aerosol generating apparatus that generates aerosols,
The first heating unit heats the first aerosol source,
The first sensor detects the user's suction,
A step of controlling the supply of power to the first heating unit,
If new suction by the user is detected after the end of the previous monitoring period , the following steps are taken: set a monitoring period of a predetermined length;
If the first sensor detects multiple suctions within the monitoring period, the first aerosol source is heated and then stopped in conjunction with each detected suction.
A control method characterized by including On the computer,
The first heating unit heats the first aerosol source,
The first sensor detects the user's suction,
A step of controlling the supply of power to the first heating unit,
If new suction by the user is detected after the end of the previous monitoring period , the process involves setting a monitoring period of a predetermined length.
If the first sensor detects multiple suctions within the monitoring period, the process includes controlling the heating and stopping of the first aerosol source in conjunction with each detected suction.
A program to execute. A method for controlling an aerosol generating apparatus that generates aerosols,
The first heating unit heats the first aerosol source,
The first sensor detects the user's suction,
A step of controlling the supply of power to the first heating unit,
The second heating unit heats the second aerosol source,
The second sensor measures the temperature of the second aerosol source,
Upon detecting the user's suction, the steps include setting a predetermined monitoring period of length,
During the monitoring period, the first aerosol source is heated and stopped in conjunction with the detection of suction by the first sensor.
During the monitoring period, the steps include stopping or reducing the heating of the second aerosol source ,
The steps include controlling the power supply to the second heating unit according to the relationship between the temperature measured by the second sensor and the target first temperature,
The steps include controlling the duty cycle of the pulse that provides power to the second heating unit in a unit period period according to the relationship between the temperature measured by the second sensor and the first temperature,
When a second temperature lower than the first temperature is set, and the temperature measured by the second sensor is less than or equal to the second temperature, the duty cycle is controlled to a first value.
If the temperature measured by the second sensor exceeds the first temperature, the duty cycle is controlled to a second value lower than the first value.
If the temperature measured by the second sensor is midway between the second temperature and the first temperature, the duty cycle is controlled to a predetermined intermediate value that is lower than the first value and higher than the second value.
A control method characterized by including A method for controlling an aerosol generating apparatus that generates aerosols,
The first heating unit heats the first aerosol source,
The first sensor detects the user's suction,
A step of controlling the supply of power to the first heating unit,
The second heating unit heats the second aerosol source,
The second sensor measures the temperature of the second aerosol source,
Upon detecting the user's suction, the steps include setting a predetermined monitoring period of length,
During the monitoring period, the first aerosol source is heated and stopped in conjunction with the detection of suction by the first sensor.
During the monitoring period, the steps include stopping or reducing the heating of the second aerosol source ,
The steps include controlling the power supply to the second heating unit according to the relationship between the temperature measured by the second sensor and the target first temperature,
When a second temperature lower than the first temperature and a third temperature even lower than the second temperature are set, if the temperature measured by the second sensor at the start of heating by the second heating unit is lower than the third temperature, the amount of power supplied to the second heating unit is increased to be greater than the amount of power supplied to the second heating unit when the temperature measured by the second sensor at the start of heating by the second heating unit is higher than the third temperature.
A control method characterized by including A method for controlling an aerosol generating apparatus that generates aerosols,
The first heating unit heats the first aerosol source,
The first sensor detects the user's suction,
A step of controlling the supply of power to the first heating unit,
The second heating unit heats the second aerosol source,
The second sensor measures the temperature of the second aerosol source,
Upon detecting the user's suction, the steps include setting a predetermined monitoring period of length,
During the monitoring period, the first aerosol source is heated and stopped in conjunction with the detection of suction by the first sensor.
During the monitoring period, the steps include stopping or reducing the heating of the second aerosol source ,
The steps include controlling the power supply to the second heating unit according to the relationship between the temperature measured by the second sensor and the target first temperature,
When a second temperature lower than the first temperature and a third temperature even lower than the second temperature are set, if the temperature measured by the second sensor at the start of heating by the second heating unit is lower than the third temperature, the step of setting the target temperature to a fourth temperature higher than the first temperature,
When the temperature measured by the second sensor reaches the second temperature, the target temperature is changed from the fourth temperature to the first temperature.
A control method characterized by including On the computer,
The first heating unit heats the first aerosol source,
The first sensor detects the user's suction,
A step of controlling the supply of power to the first heating unit,
The process involves a second heating unit heating a second aerosol source,
The second sensor measures the temperature of the second aerosol source,
Upon detecting the user's suction, the process involves setting a predetermined monitoring period of length.
During the monitoring period, the process involves controlling the heating and stopping of the heating of the first aerosol source in conjunction with the detection of suction by the first sensor.
During the monitoring period, the heating of the second aerosol source is stopped or reduced .
A step of controlling the supply of power to the second heating unit according to the relationship between the temperature measured by the second sensor and the target first temperature,
A step of controlling the duty cycle of a pulse that provides power to the second heating unit in a unit period period according to the relationship between the temperature measured by the second sensor and the first temperature,
When a second temperature lower than the first temperature is set, and the temperature measured by the second sensor is less than or equal to the second temperature, the duty cycle is controlled to a first value.
If the temperature measured by the second sensor exceeds the first temperature, the duty cycle is controlled to a second value lower than the first value.
If the temperature measured by the second sensor is midway between the second temperature and the first temperature, the duty cycle is controlled to a predetermined intermediate value that is lower than the first value and higher than the second value.
A program to execute. On the computer,
The first heating unit heats the first aerosol source,
The first sensor detects the user's suction,
A step of controlling the supply of power to the first heating unit,
The process involves a second heating unit heating a second aerosol source,
The second sensor measures the temperature of the second aerosol source,
Upon detecting the user's suction, the process involves setting a predetermined monitoring period of length.
During the monitoring period, the process involves controlling the heating and stopping of the heating of the first aerosol source in conjunction with the detection of suction by the first sensor.
During the aforementioned monitoring period, the heating of the second aerosol source is stopped or reduced ,
A step of controlling the supply of power to the second heating unit according to the relationship between the temperature measured by the second sensor and the target first temperature,
When a second temperature lower than the first temperature and a third temperature even lower than the second temperature are set, if the temperature measured by the second sensor at the start of heating by the second heating unit is lower than the third temperature, the amount of power supplied to the second heating unit is increased to be greater than the amount of power supplied to the second heating unit when the temperature measured by the second sensor at the start of heating by the second heating unit is higher than the third temperature.
A program to execute. On the computer,
The first heating unit heats the first aerosol source,
The first sensor detects the user's suction,
A step of controlling the supply of power to the first heating unit,
The process involves a second heating unit heating a second aerosol source,
The second sensor measures the temperature of the second aerosol source,
Upon detecting the user's suction, the process involves setting a predetermined monitoring period of length.
During the monitoring period, the process involves controlling the heating and stopping of the heating of the first aerosol source in conjunction with the detection of suction by the first sensor.
During the aforementioned monitoring period, the heating of the second aerosol source is stopped or reduced ,
A step of controlling the supply of power to the second heating unit according to the relationship between the temperature measured by the second sensor and the target first temperature,
When a second temperature lower than the first temperature and a third temperature even lower than the second temperature are set, if the temperature measured by the second sensor at the start of heating by the second heating unit is lower than the third temperature, the step of setting the target temperature to a fourth temperature higher than the first temperature,
When the temperature measured by the second sensor reaches the second temperature, the target temperature is changed from the fourth temperature to the first temperature.
A program to execute.