JP7009354B2 - How to control vehicle air purification system and vehicle air purification system - Google Patents

Description

The present invention relates to a vehicle air purification system, a vehicle air purification system, and a control method for a vehicle air purification system.

The air conditioning system installed in the vehicle has an outside air introduction mode that adjusts the temperature of the air taken in from the outside of the vehicle and sends it out to the vehicle interior, and an inside air circulation mode that adjusts the temperature while circulating the air inside the vehicle. ing. When the vehicle is used in winter, when the heating operation for warming the vehicle interior is performed in the outside air introduction mode, the air conditioning system has a large difference between the temperature of the outside air and the temperature of the set vehicle interior, so that more It is necessary to raise the temperature of the outside air taken in using energy. The problem of energy consumption becomes a bigger problem in an electric vehicle such as an electric vehicle because it affects the mileage.

In recent air-conditioning systems, even when operating in the outside air introduction mode, a configuration in which the taken-in outside air is mixed in a predetermined ratio has been studied and put into practical use. In the air-conditioning system with this configuration, the temperature of the air sent into the vehicle interior is adjusted because the difference between the temperature of the outside air and the set temperature of the vehicle interior is reduced (relaxed) by the inside air whose temperature is higher than the outside air. The amount of energy used for the system, that is, the power consumption of the battery can be suppressed.

By the way, the air inside the vehicle (inside air) is the carbon dioxide and water vapor that are physiologically discharged by the breathing and metabolism of the driver and passengers of the vehicle, that is, the user (user) who uses the vehicle. Contains more than air (outside air). Therefore, for example, when the vehicle is used in winter, the heating operation for warming the vehicle interior in the inside air circulation mode causes the water vapor contained in the air sent to the vehicle interior by the air conditioning system to adjust the temperature of the vehicle. It can be a factor that makes the window cloudy. Further, if the amount of carbon dioxide contained in the air sent from the air conditioning system into the vehicle interior is large, the physical condition of the vehicle user (user) may be affected.

In connection with these, Patent Document 1 discloses a technique relating to a system and a process for removing carbon dioxide in the passenger cabin (cabin) of a vehicle (vehicle), that is, carbon dioxide in the inside air. The system comprises a carbon dioxide scavenger, a carbon dioxide scavenger, and a carbon dioxide scavenger assembly that includes a regenerative conduit. Then, the air (inside air) from the inside of the passenger cabin is flowed over the renewable carbon dioxide scavenger, the treated air is returned to the passenger cabin by the carbon dioxide removal conduit, and the desorbed gas heated by the heater is released. The carbon dioxide is desorbed from the carbon dioxide sorbent by flowing it over a recyclable carbon dioxide sorbent, and the desorbed carbon dioxide is discharged at a position outside the passenger cabin by a regeneration conduit.

Special Table 2017-528316

However, in the renewable carbon dioxide scavenger as used in the technique disclosed in Patent Document 1, even if the state of desorbing carbon dioxide is switched to the state of adsorbing carbon dioxide, for a while. , The state of desorbing carbon dioxide continues. This is because the renewable carbon dioxide sorbent has a property of desorbing adsorbed carbon dioxide if the temperature is above a predetermined temperature. Therefore, in the technique described in Patent Document 1, even after the state in which carbon dioxide is desorbed by control is completed, the state in which the carbon dioxide sorbent is kept at a predetermined temperature or higher continues, and the desorbed substance to be purified is in the vehicle interior. It was sometimes returned to.

The present invention has been made based on the above-mentioned problem recognition, and is a control method for a vehicle air purification system and a vehicle air purification system capable of suppressing the flow of unpurified air into the vehicle interior. Is intended to provide.

(1): In order to achieve the above object, the vehicle air purification system according to one aspect of the present invention includes a first flow path communicating with the vehicle interior and a second flow path communicating with the vehicle interior. A blower that circulates air from the passenger compartment to the first flow path and the second flow path, and air flowing from the passenger compartment to one end of the first flow path and one end of the second flow path. An air distribution mechanism that distributes and sends out, a first flow path that is connected to the other end of the first flow path and communicates with the passenger compartment, and a first flow path that is connected to the other end of the first flow path and is connected to the vehicle. The 1-2 flow path communicating with the outside of the chamber, the first heating device which is a heating device arranged in the first flow path and heating the air inside the first flow path, and the first flow path. At least carbon dioxide and water vapor contained in the air inside the first flow path are adsorbed as purification target substances, and when the air heated by the first heating device is passed through, the purification is performed. The first adsorption block, which is an adsorption block for desorbing the target substance, and the air arranged in the first flow path and passing through the first adsorption block are passed through the first flow path or the first 1-2 flow path. A first flow path switching mechanism, which is a flow path switching mechanism that predominantly flows through any of the above, a second flow path that is connected to the other end of the second flow path and communicates with the passenger compartment, and the first flow path. A heating device that is connected to the other end of the two flow paths and communicates with the outside of the vehicle interior, and a heating device that is arranged in the second flow path and heats the air inside the second flow path. A second heating device and the substance to be purified, which are arranged in the second flow path and are contained in the air inside the second flow path, are adsorbed and passed through the air heated by the second heating device. The second adsorption block, which is an adsorption block for desorbing the substance to be purified, and the air arranged in the second flow path and passing through the second adsorption block are passed through the second flow path or the second flow path. The first adsorption by the first flow path switching mechanism without operating the second flow path switching mechanism, which is a flow path switching mechanism that predominantly flows into any of the 2nd and 2nd flow paths, and the first heating device. The air that has passed through the block is predominantly flowed to the 1-1 flow path, and the second heating device is operated to allow the air that has passed through the second adsorption block by the second flow path switching mechanism. The first state in which the air flows predominantly in the 2-2 flow path and the air that has passed through the first suction block by the first flow path switching mechanism by operating the first heating device is the 1-2 flow. While predominantly flowing in the road, the second heating device was created. A control device that alternately realizes a second state in which air that has passed through the second suction block is predominantly flowed to the 2-1 flow path without being moved by the second flow path switching mechanism. An air purification system for a vehicle, wherein the control device has a substance to be purified among the first flow path and the second flow path when switching between the first state and the second state. Each component is controlled at a timing that can suppress the flow of air from the flow path on the side to which the vehicle is attached / detached to the passenger compartment.

(2): In the embodiment of (1) above, when the control device switches from the first state to the second state, the air that has passed through the second adsorption block by the second flow path switching mechanism. Is switched from a state in which air is predominantly flowed to the 2-2 flow path to a state in which air that has passed through the second adsorption block is predominantly flowed in the second flow path by the second flow path switching mechanism. Before, when the operating second heating device is stopped and the second state is switched to the first state, the air that has passed through the first adsorption block by the first flow path switching mechanism. Is switched from a state in which air is predominantly flowed in the 1-2 flow path to a state in which air that has passed through the first adsorption block is predominantly flowed in the 1-1 flow path by the first flow path switching mechanism. Also before, the first heating device in operation is stopped.

(3): In the embodiment of (2) above, the control device uses a timer from switching of the previous flow path by the first flow path switching mechanism and switching of the previous flow path by the second flow path switching mechanism. The time is measured, and one of the above heating devices is stopped at a predetermined time.

(4): In the embodiment (2) or (3), the control device desorbs the substance to be purified by the air distribution mechanism in conjunction with stopping any of the heating devices. The ratio of the air distributed and sent out to the side flow path is increased as compared with that before stopping any of the heating devices.

(5): In the embodiment (1) to (4), when the control device switches from the first state to the second state, the second suction block is provided by the second flow path switching mechanism. The air that has passed through the second adsorption block is predominantly flowed to the 2-1 flow path by the second flow path switching mechanism from the state in which the air that has passed through the second flow path is predominantly flowed to the 2-2 flow path. When switching from the second state to the first state by delaying the switching to the state, the air that has passed through the first adsorption block by the first flow path switching mechanism predominates over the 1-2 flow path. This is to delay the switching from the state in which the air has passed through the first adsorption block to the state in which the air that has passed through the first adsorption block is predominantly flowed in the 1-1 flow path by the first flow path switching mechanism.

(6): In the embodiment of (5) above, the control device is switched from the first state to the second state and from the second state to the first state by a timer. The time is measured, and the switching of the state in which the air is predominantly flowed by any of the flow path switching mechanisms is delayed until a predetermined time.

(7): In the embodiment (5) or (6), the control device switches from the first state to the second state, and from the second state to the first state. From switching to monitoring the temperature of any of the adsorption blocks placed in the flow path on the side that adsorbs the substance to be purified, detected by the temperature sensor, until the monitored temperature falls below a predetermined temperature threshold. , The switching of the state in which the air is predominantly flowed by any one of the flow path switching mechanisms is delayed.

(8): In the embodiment (5) to (7), the control device switches from the first state to the second state, and from the second state to the first state. From the switching, the temperature of the air predominantly flowed from the flow path on the side adsorbing the substance to be purified detected by the temperature sensor is monitored, and the monitored temperature becomes equal to or lower than the predetermined temperature threshold value. It delays the switching of the state in which the air is predominantly flowed by any of the flow path switching mechanisms.

(9): In the embodiment (5) to (8), the control device switches from the first state to the second state, and from the second state to the first state. From the switching, the concentration of the purification target substance contained in the air predominantly flowed from the flow path on the side adsorbing the purification target substance detected by the concentration sensor is monitored, and the monitored concentration is a predetermined concentration. The switching of the state in which the air is predominantly flowed by any of the flow path switching mechanisms is delayed until the value becomes equal to or lower than the threshold value.

(10): In the embodiment (5) to (9), the control device is linked to delaying the switching of the state in which the air is predominantly flowed by any one of the flow path switching mechanisms, and the first. When switching from the above state to the second state, the first flow from the state in which the air that has passed through the first adsorption block is predominantly flowed to the 1-1 flow path by the first flow path switching mechanism. When the path switching mechanism delays the switching to the state in which the air that has passed through the first adsorption block flows predominantly in the 1-2 flow path, and switches from the second state to the first state, the said From the state in which the air that has passed through the second adsorption block is predominantly flowed to the 2-1 flow path by the second flow path switching mechanism, the air that has passed through the second adsorption block is moved by the second flow path switching mechanism. It delays the switching to the state in which the air flows predominantly in the 2-2 flow path.

(11): In the embodiment (5) to (10), the control device is delayed by the blower while delaying the switching of the state in which the air is predominantly flowed by any one of the flow path switching mechanisms. The amount of air flowing toward the one flow path and the second flow path is increased compared to before the switching of the state in which the air is predominantly flowed by any of the flow path switching mechanisms is delayed, and the air distribution is performed. The ratio of the air distributed and sent out to the flow path on the side where the purification target substance is adsorbed by the mechanism is compared with that before delaying the switching of the state in which the air is predominantly flowed by any of the flow path switching mechanisms. It is something to raise.

(12): In the embodiment (5) to (10), the control device is delayed by the blower while delaying the switching of the state in which the air is predominantly flowed by any one of the flow path switching mechanisms. The amount of air flowing toward the one flow path and the second flow path is reduced as compared with before delaying the switching of the state in which the air is predominantly flowed by any of the flow path switching mechanisms, and the air distribution is performed. The ratio of the air distributed and sent out to the flow path on the side where the purification target substance is adsorbed by the mechanism is compared with that before delaying the switching of the state in which the air is predominantly flowed by any of the flow path switching mechanisms. It is something to lower.

(13) Further, the control method of the vehicle air purification system according to one aspect of the present invention includes a first flow path communicating with the vehicle interior, a second flow path communicating with the vehicle interior, and the vehicle. A blower that circulates air from the chamber toward the first flow path and the second flow path, and the air flowing from the passenger compartment is distributed to one end of the first flow path and one end of the second flow path. The air distribution mechanism to be sent out, the 1-1 flow path connected to the other end of the first flow path and communicating with the vehicle interior, and the other end of the first flow path connected to the outside of the vehicle interior. The first heating device, which is a heating device that is arranged in the first flow path and heats the air inside the first flow path, and is arranged in the first flow path. At least carbon dioxide and water vapor contained in the air inside the first flow path are adsorbed as purification target substances, and when the air heated by the first heating device is passed through, the purification target substance is introduced. The first suction block, which is a desorbable suction block, and the air arranged in the first flow path and passing through the first suction block are either the 1-1 flow path or the 1-2 flow path. A first flow path switching mechanism, which is a flow path switching mechanism that predominantly flows through the air, a second flow path that is connected to the other end of the second flow path and communicates with the passenger compartment, and the second flow path. A second flow path that is connected to the other end of the vehicle and communicates with the outside of the passenger compartment, and a second flow path that is arranged in the second flow path and heats the air inside the second flow path. When the heating device and the purification target substance arranged in the second flow path and contained in the air inside the second flow path are adsorbed and the air heated by the second heating device is passed through. The second adsorption block, which is an adsorption block for desorbing the substance to be purified, and the air arranged in the second flow path and passing through the second adsorption block are passed through the second flow path or the second flow path. A control method for a vehicle air purification system including a second flow path switching mechanism, which is a flow path switching mechanism that predominantly flows through any of the two flow paths, and a control device that controls each component. The control device does not operate the first heating device, and the air that has passed through the first suction block is predominantly flowed through the first flow path by the first flow path switching mechanism, and the first flow path is predominantly flown. 2 The first state in which the heating device is operated and the air that has passed through the second suction block by the second flow path switching mechanism is predominantly flowed to the 2-2 flow path, and the first heating device Activate to the first flow path switching mechanism The air that has passed through the first suction block is predominantly flowed to the 1-2 flow path, and the second heating device is not operated, and the air passes through the second suction block by the second flow path switching mechanism. The second state in which the air is predominantly flowed in the 2-1 flow path is alternately realized, and when switching between the first state and the second state, the first flow path and the first flow path are used. Each component is controlled at a timing at which air can be suppressed from flowing from the flow path on the side of the second flow path on which the substance to be purified is desorbed to the vehicle interior.

According to the configurations (1) to (13) described above, it is possible to suppress the flow of air into the vehicle interior from the flow path on the side of the first flow path and the second flow path on which the substance to be purified is desorbed. In order to control each component at the timing, one of the adsorption blocks adsorbs the substance to be purified and returns the purified air to the passenger compartment of the vehicle, and the other adsorption block desorbs the substance to be purified. It is possible to realize the operation of exhausting the air to the outside of the vehicle interior at the same time, and to suppress the flow of unpurified air into the vehicle interior.

It is a block diagram which shows the schematic structure of the air purification system for a vehicle of this embodiment. It is a figure which shows an example of the state of air purification schematically. It is a figure which shows the operation in the air purification system for a vehicle of the comparative example. It is a figure which shows the 1st control method in the air purification system for a vehicle. It is a figure which shows the 2nd control method in the air purification system for a vehicle. It is a figure which shows the 3rd control method in the air purification system for a vehicle. It is a figure which shows the 4th control method in the air purification system for a vehicle. It is a figure which shows the 5th control method in the air purification system for a vehicle. It is a figure which shows the 6th control method in the air purification system for a vehicle.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, it is assumed that the vehicle air purification system of the present embodiment is mounted on a four-wheel electric vehicle such as an electric vehicle that is driven by an electric motor driven by electric power supplied from a battery. do.

(overall structure)
FIG. 1 is a block diagram showing a schematic configuration of the vehicle air purification system of the present embodiment. The vehicle air purifying system 1 shown in FIG. 1 includes a vehicle air purifying device 10 and a control device 20.

The vehicle air purifying device 10 is an air purifying device that sucks and purifies the air inside the vehicle interior of an electric vehicle (hereinafter referred to as "inside air"). The vehicle air purifying device 10 has a function of removing at least carbon dioxide and water vapor, which are substances to be purified, contained in the inhaled internal air. In the vehicle air purifying device 10, the flow path through which the sucked inside air passes is branched into two flow paths after the branch point, for example, by a partition wall 10a in the housing. In the following description, the flow path on the passenger compartment side of the branch point is referred to as an "inlet flow path", one flow path branched by the partition wall 10a is referred to as a "first flow path", and the other flow path is referred to as a "first flow path". It is called "second channel".

The vehicle air purifying device 10 sucks the inside air inside the vehicle interior of the electric vehicle from the suction port 101 connected to the duct on the upstream side communicating with the vehicle interior of the electric vehicle. Then, the vehicle air purifying device 10 was purified by removing the purification target substance, that is, the purification target substance by passing the sucked inside air through the first flow path or the second flow path. Air (hereinafter referred to as "purified air") is exhausted from the first exhaust port 105 connected to the duct on the downstream side communicating with the passenger compartment of the electric vehicle. As a result, the purified air purified by the vehicle air purifying device 10 is returned to the passenger compartment of the electric vehicle. Further, the vehicle air purifying device 10 is used to discharge the air to be purified when the sucked inside air is passed through the first flow path or the second flow path, that is, the previously removed purification target. Air containing substances (hereinafter referred to as “removed substance air”) is exhausted from a second exhaust port 106 connected to a duct on the downstream side communicating with the outside of the electric vehicle (outside the vehicle interior). As a result, the substance to be purified previously removed from the inside air by the vehicle air purifying device 10 is exhausted to the outside of the electric vehicle. In the following description, the flow path for returning purified air from the first flow path to the vehicle interior of the electric vehicle is referred to as "1-1 flow path", and the flow path for exhausting the removed substance air to the outside of the vehicle of the electric vehicle is referred to as "1-1 flow path". It is called "1-2 flow path". Further, the flow path for returning purified air from the second flow path to the passenger compartment of the electric vehicle is called "2-1 flow path", and the flow path for exhausting the removed substance air to the outside of the vehicle of the electric vehicle is called "2-2". It is called "flow path".

As a basic purification operation, the vehicle air purifying device 10 performs an operation of returning the purified air to the passenger compartment of the electric vehicle and an operation of exhausting the removed substance air to the outside of the electric vehicle at the same time. Therefore, in the vehicle air purifying device 10, the flow path for returning the purified air to the vehicle interior of the electric vehicle is alternately switched between the 1-1 flow path and the 2-1 flow path by the control device 20. Will be. Further, in the vehicle air purifying device 10, the flow path for exhausting the removed substance air to the outside of the vehicle of the electric vehicle is alternately switched between the first and second flow paths and the second and second flow paths by the control device 20. Will be. More specifically, in the vehicle air purifying device 10, the control device 20 causes purified air to flow from the first flow path to the first flow path, and at the same time, removes substance air from the second flow path to the second flow path. The first state of flowing into the two flow paths and the second state of flowing the removed substance air from the first flow path to the first flow path and the purified air from the second flow path to the second flow path. And alternately.

In the vehicle air purifying device 10 shown in FIG. 1, a first exhaust port 105 for flowing purified air and a second for flowing removed substance air in each of the first flow path and the second flow path. It is provided as a set with the exhaust port 106. In the following description, the first exhaust port 105 for flowing purified air from the first flow path to the 1-1 flow path is referred to as "1-1 exhaust port 105-1" and is removed by the 1-2 flow path. The second exhaust port 106 through which material air flows is referred to as "1-2 exhaust port 106-1". Further, the first exhaust port 105 for flowing purified air from the second flow path to the second flow path is called "2-1 exhaust port 105-2", and the removed substance air is flowed through the second flow path. The second exhaust port 106 is referred to as "2-2 exhaust port 106-2".

In the vehicle air purifying device 10 shown in FIG. 1, in order to make it easier to understand the structures of the first exhaust port 105 and the second exhaust port 106, the first flow path and the second flow path are respectively. Although the configuration in which the first exhaust port 105 and the second exhaust port 106 are provided as a set is shown in the flow path of the vehicle, the first exhaust port 105 and the second exhaust port in the vehicle air purifying device 10 are shown. The structure with 106 is not limited to the structure shown in FIG. For example, in the vehicle air purifying device 10, the first exhaust port 105 corresponding to each of the first flow path and the second flow path is composed of a common exhaust port, and the first flow path and the second flow path are the same. The second exhaust port 106 corresponding to each flow path with the flow path may be configured with a common exhaust port.

The vehicle air purifying device 10 includes a blower 110, an air distribution mechanism 120, a pair of heating devices 130, a pair of suction blocks 140, and a pair of flow path switching mechanisms 150. .. In the vehicle air purifying device 10, one of the pair of heating devices 130, the suction block 140, and the flow path switching mechanism 150 is arranged on the first flow path side, and the other is arranged on the second flow path side. ing. In the following description, the heating device 130 arranged on the first flow path side is referred to as "first heating device 130-1", the suction block 140 is referred to as "first suction block 140-1", and the flow path switching mechanism 150 is referred to as "first flow path switching mechanism 150". First flow path switching mechanism 150-1 ". Further, the heating device 130 arranged on the second flow path side is the "second heating device 130-2", the suction block 140 is the "second suction block 140-2", and the flow path switching mechanism 150 is the "second flow path". Switching mechanism 150-2 ".

The blower 110 is a fan for sucking and distributing the inside air in the passenger compartment of the electric vehicle from the suction port 101 connected to the duct on the upstream side in accordance with the control from the control device 20. The blower 110 flows the inside air sucked from the suction port 101 through the inlet flow path and sends it out to the air chamber 102.

The air distribution mechanism 120 is a mechanism that distributes the inside air sent to the air chamber 102 by the blower 110 to the first flow path and the second flow path in accordance with the control from the control device 20. The air distribution mechanism 120 controls the opening / closing door 121 that rotates to distribute the inside air to the first flow path and the second flow path, and the direction and amount of rotation of the opening / closing door 121 according to the control from the control device 20. It is configured to include a control function (for example, an actuator) (not shown). The inside air in the air chamber 102 distributed by the air distribution mechanism 120 is from the first flow path from the first air chamber 103-1 side to the first air chamber 104-1 side and the second air chamber 103-2 side. It is sent out to each of the second flow paths toward the second air chamber 104-2 side. In the following description, when the first air chamber 103-1 constituting the first flow path and the second air chamber 103-2 constituting the second flow path are represented without distinction, the first flow path is used. Alternatively, the "-" included as a code to indicate the second flow path and the number following it are not shown, and are simply referred to as "air chamber 103". Similarly, when the first air chamber 104-1 constituting the first flow path and the second air chamber 104-2 constituting the second flow path are represented without distinction, simply "air chamber 104" is used. ".

The heating device 130 is a heater that heats the air inside the flow path distributed by the air distribution mechanism 120 according to the control from the control device 20. When passing the inside air sent out to the arranged flow path, the heating device 130 heats the inside air to be passed according to the control from the control device 20. The first heating device 130-1 arranged in the first flow path allows the inside air sent out to the first flow path to pass as it is in the direction of the first adsorption block 140-1 without heating or heating. Further, the second heating device 130-2 arranged in the second flow path allows the inside air sent out to the second flow path to pass as it is in the direction of the second adsorption block 140-2 without heating or heating. ..

The adsorption block 140 adsorbs the purification target substance contained in the inside air or desorbs the adsorbed purification target substance when passing the inside air flowing through the corresponding heating device 130 and arranged in the flow path. It is an adsorbent in which an adsorbent layer is arranged. When the suction block 140 passes the inside air that has passed through the corresponding heating device 130 as it is without being heated, it adsorbs the substance to be purified contained in the inside air and sends it to the corresponding air chamber 104. More specifically, the first adsorption block 140-1 arranged in the first flow path is a substance to be purified contained in the inner air that is flown into the first flow path without being heated by the first heating device 130-1. The purified air adsorbed is sent to the first air chamber 104-1. Further, the second adsorption block 140-2 arranged in the second flow path purifies by adsorbing the substance to be purified contained in the internal air that has flowed in the second flow path without being heated by the second heating device 130-2. Air is sent to the second air chamber 104-2.

Further, the adsorption block 140 is regenerated into a state in which the substance to be purified is not adsorbed by desorbing the previously adsorbed substance to be purified when passing the inside air heated by the corresponding heating device 130. Will be done. As a result, the heated inside air used for the regeneration of the adsorption block 140, that is, the removed substance air containing the substance to be purified once adsorbed, is sent to the corresponding air chamber 104. More specifically, the first suction block 140-1 arranged in the first flow path is heated by the first heating device 130-1 to remove the removed substance air used for regeneration in the first air chamber. Send to 104-1. Further, the second adsorption block 140-2 arranged in the second flow path transfers the removed substance air used for regeneration by being heated by the second heating device 130-2 to the second air chamber 104-2. Send out.

The substance to be purified to be adsorbed or desorbed by the adsorption block 140 contains at least carbon dioxide and water vapor. Therefore, as the adsorbent material of the adsorbent layer arranged in the adsorption block 140, for example, carbon dioxide, water vapor, volatile organic compound (VOC) and the like can be adsorbed, and zeolite and the like can be considered. Here, as the structure of the adsorbent layer arranged on the adsorbent block 140, for example, a structure in which an adsorbent material such as zeolite is supported or impregnated on the base material of the adsorbent block 140 can be considered. However, in the present invention, the structure of the adsorbent layer in the adsorption block 140 is not particularly specified.

The flow path switching mechanism 150 provides a first exhaust port 105 or a second exhaust port with an exhaust port for predominantly flowing the air sent out to the air chamber 104 of the arranged flow path according to the control from the control device 20. It is a mechanism for switching to one of the exhaust ports of the port 106. The flow path switching mechanism 150 includes an opening / closing door 151 that rotates to switch the exhaust port, and a control function (for example, an actuator) (not shown) that controls the direction in which the opening / closing door 151 rotates according to the control from the control device 20. Consists of including. The air in the air chamber 104 is exhausted from either the first exhaust port 105 or the second exhaust port 106 that is in the open state.

More specifically, the 1-1 exhaust port 105-1 is opened by the first opening / closing door 151-1 constituting the first flow path switching mechanism 150-1 arranged in the first flow path, and the first -2 When the exhaust port 106-1 is closed, the purified air in the first air chamber 104-1 is exhausted from the 1-1 exhaust port 105-1 and predominates in the 1-1 flow path. It is returned to the passenger compartment of the electric vehicle through the duct on the downstream side connected to the 1-1 exhaust port 105-1. On the other hand, the first opening / closing door 151-1 constituting the first flow path switching mechanism 150-1 closes the 1-1 exhaust port 105-1 and opens the 1-2 exhaust port 106-1. In this case, the air in the first air chamber 104-1 is exhausted from the 1-2 exhaust port 106-1 and predominantly flowed into the 1-2 flow path, and the 1-2 exhaust port 106-1. It is exhausted to the outside of the electric vehicle through the duct on the downstream side connected to. Further, the 2-1 exhaust port 105-2 is opened by the second opening / closing door 151-2 constituting the second flow path switching mechanism 150-2 arranged in the second flow path, and the 2-2 exhaust port is opened. When 106-2 is closed, the purified air in the second air chamber 104-2 is exhausted from the 2-1 exhaust port 105-2 and is predominantly flowed to the 2-1 flow path. It is returned to the passenger compartment of the electric vehicle through the duct on the downstream side connected to the 2-1 exhaust port 105-2. On the other hand, the second opening / closing door 151-2 constituting the second flow path switching mechanism 150-2 closes the 2-1 exhaust port 105-2 and opens the 2-2 exhaust port 106-2. In this case, the air in the second air chamber 104-2 is exhausted from the 2-2 exhaust port 106-2 and is predominantly flowed to the 2-2 flow path, and the 2-2 exhaust port 106-2. It is exhausted to the outside of the electric vehicle through the duct on the downstream side connected to.

The control device 20 includes, for example, a processor such as a CPU (Central Processing Unit) and a storage device for storing a program (a storage device including a non-transient storage medium), and various functions are executed by the processor executing the program. To realize. Further, the control device 20 includes an LSI (Large Scale Integration), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), a GPU (Graphics Circuit) hardware such as a GPU (Graphics Circuit), and a GPU (Graphics Circuit). It may be realized, or it may be realized by the cooperation of software and hardware.

The control device 20 is not limited to a single component provided in the vehicle air purification system 1. For example, the function of controlling each component of the vehicle air purifying device 10 in the control device 20 as described above is an ECU (electronic control unit: Electronic Control Unit) that electrically controls the entire electric vehicle. ) May be a function realized. That is, the ECU provided in the electric vehicle may be the control device 20 in the vehicle air purification system 1.

The control device 20 controls the operations of the blower 110, the air distribution mechanism 120, the heating device 130, and the flow path switching mechanism 150 provided in the vehicle air purifying device 10. The control device 20 outputs a control signal for controlling the operation of the blower 110, the air distribution mechanism 120, the heating device 130, and the flow path switching mechanism 150 to each component.

More specifically, the control device 20 outputs a control signal for controlling the rotation speed of the fan when the blower 110 sucks from the suction port 101 to the blower 110. As a result, the blower 110 rotates the fan at the rotation speed represented by the control signal output from the control device 20, and causes the inside air sucked from the suction port 101 to flow to the inlet flow path at an air volume corresponding to the rotation speed of the fan.

Further, the control device 20 rotates the opening / closing door 121 constituting the air distribution mechanism 120 according to the ratio of the air distribution mechanism 120 distributing the inside air sent to the air chamber 102 to the first flow path and the second flow path. A control signal for controlling the direction and the amount of rotation is output to a control function (not shown) constituting the air distribution mechanism 120. As a result, in the air distribution mechanism 120, the control function (not shown) rotates the open / close door 121 in the rotation direction and the amount of rotation represented by the control signal output from the control device 20, and the control device 20 controls the opening / closing door 121. The inside air flowing through the inlet flow path is distributed to the first flow path and the second flow path.

Further, the control device 20 outputs a control signal for controlling the operation (on) and the stop (off) of the heating device 130 to each heating device 130. As a result, the heating device 130 controlled to be turned on by the control device 20 heats the inside air flowing in the arranged flow path and passes it in the direction of the corresponding suction block 140. Further, the heating device 130 controlled to the off state by the control device 20 allows the inside air flowing in the arranged flow path to pass as it is in the direction of the corresponding suction block 140 without heating.

Further, the control device 20 opens and closes the flow path switching mechanism 150 when switching between a flow path for returning the air passing through the suction block 140 to the vehicle interior of the electric vehicle and a flow path for exhausting the air to the outside of the vehicle of the electric vehicle. A control signal for controlling the rotation direction of the door 151 is output to a control function (not shown) constituting the flow path switching mechanism 150. More specifically, the control device 20 controls the rotation direction of the opening / closing door 151 of the flow path for returning the air passing through the suction block 140 to the passenger compartment of the electric vehicle to open the first exhaust port 105 and the second. The exhaust port 106 is closed, and the rotation direction of the opening / closing door 151 of the flow path that exhausts the removed material air that has passed through the suction block 140 to the outside of the electric vehicle is controlled to close the first exhaust port 105 and the second exhaust. The mouth 106 is controlled to be open. As a result, in the flow path switching mechanism 150, the control function (not shown) rotates the open / close door 151 in the rotation direction represented by the control signal output from the control device 20, and purifies the purified air sent to the corresponding air chamber 104. The exhaust port to be exhausted is switched to either the first exhaust port 105 or the second exhaust port 106.

As described above, in the vehicle air purifying system 1, the operation of returning the purified air by the vehicle air purifying device 10 to the inside of the electric vehicle and the operation of exhausting the removed material air to the outside of the electric vehicle. At the same time. Therefore, in the control device 20, as basic control for the flow path switching mechanism 150, an exhaust port for predominantly flowing air in the first flow path and an exhaust port for predominantly flowing air in the second flow path are provided. The rotation direction of the opening / closing door 151 constituting each flow path switching mechanism 150 is controlled so as to be reversed.

In this way, the control device 20 controls the operations of the blower 110, the air distribution mechanism 120, the heating device 130, and the flow path switching mechanism 150 provided in the vehicle air purifying device 10, thereby purifying the vehicle air. The flow path for returning the purified air adsorbed with the purification target substance by each adsorption block 140 provided in the device 10 to the passenger compartment of the electric vehicle, and the removal used for desorption of the purification target substance adsorbed on the adsorption block 140. Switch to the flow path that exhausts material air to the outside of the electric vehicle. In other words, the control device 20 has a flow path for adsorbing purification target substances (carbon dioxide and water vapor) contained in the inside air of the vehicle interior of the electric vehicle by the adsorption block 140, and a flow path for desorbing the previously adsorbed purification target substance. To switch between. At this time, in the control device 20, either one of the first flow path and the second flow path is used as a flow path for returning purified air to the passenger compartment of the electric vehicle, and the other flow path is used for removing substance air. The flow path is to exhaust air to the outside of the electric vehicle. As a result, in the vehicle air purifying system 1, in the vehicle air purifying device 10, while one of the adsorption blocks 140 adsorbs the substance to be purified, the other adsorption block 140 adsorbs the substance to be purified. Detachable and regenerated. That is, in the vehicle air purifying system 1, the operation of returning the purified air in the vehicle air purifying device 10 to the vehicle interior of the electric vehicle and the operation of exhausting the removed material air to the outside of the electric vehicle are performed at the same time. Will be. Then, the control device 20 first switches between the flow path for returning the purified air to the vehicle interior of the electric vehicle and the flow path for exhausting the removed substance air to the outside of the vehicle of the electric vehicle, for example, at intervals of 2 to 5 minutes. It is repeated at predetermined timings at which air can be suppressed from flowing into the vehicle interior from the flow path on the side of the flow path and the second flow path on which the substance to be purified is desorbed. As a result, in the vehicle air purifying system 1, the purified air is sent out to the vehicle interior by the vehicle air purifying device 10 and the removed substance air is sent out to the outside of the vehicle (exhaust) continuously.

The timing at which the control device 20 switches the flow path is determined based on the purification performance of each suction block 140 provided in the vehicle air purifying device 10. At this time, the timing at which the control device 20 switches the flow path varies depending on the capacity of the adsorbent material contained in the adsorbent layer arranged in the adsorbent block 140, and the adsorbent block 140 can continue to adsorb the substance to be purified. It may be determined based on the time and the capacity of the substance to be purified that can be adsorbed. As a result, in the vehicle air purification system 1, the timing at which the control device 20 switches the flow path can be set to the optimum time interval according to the purification performance of the suction block 140. Then, in the vehicle air purification system 1, for example, the flow path can be easily switched at the same time interval by measuring the time determined from the timing when the control device 20 switches the flow path by a timer or the like. ..

Here, the operation of removing carbon dioxide and water vapor in the vehicle air purification system 1 will be described. FIG. 2 is a diagram schematically showing an example of the state of air purification in the vehicle air purification system 1. In FIG. 2, purified air from which carbon dioxide and water vapor have been removed by the first flow path is returned to the passenger compartment of the electric vehicle, and carbon dioxide and water vapor previously removed by the second flow path are desorbed to the outside of the electric vehicle. The state of exhausting is schematically shown.

In this case, the control device 20 causes the blower 110 to flow the inside air containing carbon dioxide and water vapor sucked from the suction port 101 into the inlet flow path with a predetermined air volume and send it to the air chamber 102. Then, the control device 20 causes the air distribution mechanism 120 to distribute the inside air flowing through the inlet flow path to the first flow path and the second flow path. At this time, the control device 20 sets the ratio of the air volume of the inside air flowing in the first flow path to the air volume of the inside air flowing in the second flow path, for example, the first flow path: the second flow path = 3: 1. As a result, 75% of the inside air that the blower 110 flows through the inlet flow path and is sent to the air chamber 102 is sent to the first air chamber 103-1, and the remaining 25% is sent to the second air chamber 103-2. ..

Then, the control device 20 turns off the first heating device 130-1 arranged in the first flow path. Further, the control device 20 causes the first flow path switching mechanism 150-1 to open the 1-1 exhaust port 105-1 and close the 1-2 exhaust port 106-1. As a result, the inside air sent to the first air chamber 103-1 passes in the direction of the first adsorption block 140-1 as it is without being heated by the first heating device 130-1, and the first adsorption block 140-1 Purified air on which carbon dioxide and water vapor are adsorbed is sent to the first air chamber 104-1. FIG. 2 schematically shows a state in which purified air in which carbon dioxide and water vapor are adsorbed by the first adsorption block 140-1 is sent out from the 1-1 exhaust port 105-1. Here, the purified air sent out from the 1-1 exhaust port 105-1 flows into the 1-1 flow path and is returned to the passenger compartment of the electric vehicle.

On the other hand, the control device 20 turns on the second heating device 130-2 arranged in the second flow path. Further, the control device 20 causes the second flow path switching mechanism 150-2 to close the 2-1 exhaust port 105-2 and open the 2-2 exhaust port 106-2. As a result, the inside air sent out to the second air chamber 103-2 is heated by the second heating device 130-2 and passes in the direction of the second adsorption block 140-2, and the second adsorption block 140-2 becomes the second adsorption block 140-2. It is regenerated by desorbing previously adsorbed carbon dioxide and water vapor. Then, the removed substance air from which the second adsorption block 140-2 has desorbed carbon dioxide and water vapor is sent to the second air chamber 104-2, and is sent out from the second exhaust port 106-2 to the outside of the electric vehicle. It is exhausted. FIG. 2 schematically shows a state in which the removed substance air to which carbon dioxide and water vapor adsorbed on the second adsorption block 140-2 are desorbed is sent out from the 2-2 exhaust port 106-2. Shows. Here, the removed substance air sent out from the 2-2 exhaust port 106-2 flows into the 2-2 flow path and is exhausted to the outside of the electric vehicle (outside the vehicle interior).

As described above, in the vehicle air purification system 1, the control device 20 operates to return the purified air to the passenger compartment of the electric vehicle by the first flow path, and the removed substance air is returned to the outside of the electric vehicle by the second flow path. Have the exhaust operation performed in parallel at the same time. After that, the control device 20 returns the purified air to the passenger compartment of the electric vehicle by the second flow path at a predetermined timing (for example, when a predetermined time has elapsed, such as 5 minutes), and the first flow path. The flow path is switched so that the removed substance air is exhausted to the outside of the electric vehicle. The control by the control device 20 at this time can be easily considered only by reversing the control of each component performed for the state shown in FIG. 2, and therefore detailed description thereof will be omitted. ..

After that, the control device 20 periodically repeats switching between the first flow path and the second flow path at predetermined timings. As a result, in the vehicle air purifying system 1, the purified air by the vehicle air purifying device 10 can be continuously sent out to the inside of the vehicle and the removed substance air to the outside of the vehicle (exhaust). ..

Next, a detailed control method of each component provided in the vehicle air purifying device 10 by the control device 20 will be described. First, in order to understand the control of the vehicle air purifying device 10 by the control device 20, the flow path for returning the purified air from which carbon dioxide and water vapor have been removed to the passenger compartment of the electric vehicle and the previously removed carbon dioxide and water vapor are used. An operation in the case of simply periodically switching between the flow path that is detached and exhausted to the outside of the electric vehicle will be described as a comparative example. In the following description, in order to facilitate the description, a case where water vapor is removed from the inside air by the vehicle air purifying device 10 will be described.

FIG. 3 is a diagram showing an operation in a vehicle air purification system of a comparative example. FIG. 3 shows a case where the control device 20 controls the operation of each component provided in the vehicle air purifier 10 as in the vehicle air purifier system of the comparative example in which the flow path is simply switched. Shows. Further, FIG. 3 shows changes in the state of each component provided in the vehicle air purifying device 10 during the purification period for four cycles in which the flow path is switched by the control of the control device 20. More specifically, in FIG. 3, the air volume of the inside air flowing to the first air chamber 103-1, that is, flowing to the first flow path, and the air volume of the inside air flowing to the second air chamber 103-2, that is, the second flow path. It shows each of the air volume of the shyness flowing in. Further, FIG. 3 shows the on and off states of the first heating device 130-1 and the second heating device 130-2, respectively. Further, in FIG. 3, each of the first flow path switching mechanism 150-1 and the second flow path switching mechanism 150-2 switches the exhaust port for exhausting the air sent to the corresponding air chamber 104. Is shown.

Further, in FIG. 3, the inside air sucked by the vehicle air purifying device 10 from the suction port 101, the purified air exhausted from the first exhaust port 105, and the removed substance air exhausted from the second exhaust port 106 are shown. An example of a change in the amount of water vapor contained in the air is shown as a change in absolute humidity. In the change in absolute humidity shown in FIG. 3, when the absolute humidity is lower than the absolute humidity of the inside air, the adsorption block 140 is in a state of adsorbing the water vapor contained in the inside air, and the absolute humidity is the absolute inside air. When the humidity is higher than the humidity, the water vapor adsorbed by the adsorption block 140 is attached / detached, that is, the adsorption block 140 is being regenerated.

First, in the purification period P1, the control device 20 puts the first flow path into the first state of returning the purified air from which water vapor has been removed to the passenger compartment of the electric vehicle, and sets the second flow path to the second adsorption block 140-. Each component provided in the vehicle air purifying device 10 is controlled so as to be in the second state of exhausting the regenerated removed substance air of 2 to the outside of the electric vehicle.

More specifically, the control device 20 controls the blower 110 to suck in the inside air of a predetermined constant amount from the suction port 101 and send it to the air chamber 102. Then, the control device 20 controls the air distribution mechanism 120 to distribute the inside air sent to the air chamber 102. As described above, the control device 20 increases the air volume of the inside air flowing in the flow path for returning the purified air from which water vapor has been removed to the passenger compartment of the electric vehicle, that is, the flow path for adsorbing water vapor by the adsorption block 140. The air volume of the inside air flowing in the flow path for desorbing the adsorbed water vapor and exhausting it to the outside of the electric vehicle, that is, the flow path for regenerating the adsorption block 140 is increased. Therefore, in the purification period P1, the control device 20 increases the air volume of the first flow path for adsorbing water vapor to the first adsorption block 140-1, and regenerates the second adsorption block 140-2. Lower the air volume. Further, the control device 20 turns off the first heating device 130-1 arranged in the first flow path for adsorbing water vapor to the first adsorption block 140-1, and regenerates the second adsorption block 140-2. The second heating device 130-2 arranged in the two flow paths is turned on. Further, the control device 20 controls the first flow path switching mechanism 150-1 to switch the exhaust port for predominantly flowing purified air to the first flow path to the 1-1 exhaust port 105-1, and the second. The flow path switching mechanism 150-2 is controlled to switch the exhaust port for predominantly flowing the removed substance air to the second flow path to the 2-2 exhaust port 106-2.

As a result, in the purification period P1, as shown by the change in absolute humidity, the purified air from which water vapor has been removed by the first adsorption block 140-1 is returned from the first flow path to the passenger compartment of the electric vehicle, and the first 2 The removed substance air regenerated from the adsorption block 140-2 is exhausted from the second flow path to the outside of the electric vehicle.

Subsequently, the control device 20 switches between the first flow path and the second flow path in the purification period P2 to a state opposite to that of the purification period P1. That is, the control device 20 puts the first flow path in the second state of exhausting the removed substance air regenerated from the first suction block 140-1 to the outside of the electric vehicle, and removes water vapor in the second flow path. Each component provided in the vehicle air purifying device 10 is controlled so as to be in the first state of returning the purified air to the passenger compartment of the electric vehicle.

More specifically, the control device 20 causes the blower 110 to suck in the inside air of a predetermined constant amount from the suction port 101 and send it to the air chamber 102 even during the purification period P2. Then, in the purification period P2, the control device 20 lowers the air volume of the first flow path for regenerating the first adsorption block 140-1, and the air volume of the second flow path for adsorbing water vapor to the second adsorption block 140-2. To raise. Further, the control device 20 turns on the first heating device 130-1 arranged in the first flow path for regenerating the first suction block 140-1, and adsorbs water vapor to the second suction block 140-2. The second heating device 130-2 arranged in the two flow paths is turned off. Further, the control device 20 controls the first flow path switching mechanism 150-1 to switch the exhaust port for predominantly flowing the removed substance air to the first flow path to the 1-2 exhaust port 106-1. , The second flow path switching mechanism 150-2 is controlled to switch the exhaust port for predominantly flowing purified air to the second flow path to the 2-1 exhaust port 105-2.

As a result, in the purification period P2, as shown by the change in absolute humidity, the purified air from which the water vapor has been removed by the second adsorption block 140-2 is returned from the second flow path to the passenger compartment of the electric vehicle, and the second 1 The removed substance air regenerated from the adsorption block 140-1 is exhausted from the first flow path to the outside of the electric vehicle.

After that, similarly, the control device 20 repeats the control of switching between the first flow path and the second flow path in the opposite state in each purification period P.

As described above, in the vehicle air purification system of the comparative example, the control device 20 reverses the states of the first flow path and the second flow path in each purification period P, and the water vapor contained in the inner air is absorbed. The removal is alternately performed in the first adsorption block 140-1 and the second adsorption block 140-2, and the water vapor adsorbed by each of the first adsorption block 140-1 and the second adsorption block 140-2 is removed. Alternately detach and regenerate.

Here, in the vehicle air purification system of the comparative example, since the flow path is simply switched, after the control device 20 switches the flow path, as can be seen from the change in the absolute humidity shown in FIG. For a while (during period P shown in FIG. 3), the absolute humidity of the purified air has become higher than the absolute humidity of the inside air. This is because the inside air flowing in the flow path for removing water vapor is heated by the residual heat of the heating device 130 that was previously turned on to regenerate the adsorption block 140, and the water vapor previously adsorbed by the adsorption block 140 is desorbed. This is due to the fact that it is in a state of being. That is, the adsorption block 140 continues to be in a state of being regenerated by desorbing the adsorbed water vapor until the inside air to be passed cools to a temperature at which the adsorbed water vapor is adsorbed. In this case, the water vapor desorbed during the period P is returned to the passenger compartment of the electric vehicle by the flow path switched by the control device 20. Then, the purified air containing the desorbed water vapor can be a factor that makes the window of the vehicle cloudy.

Therefore, in the vehicle air purification system 1, the control device 20 considers the situation of the purified air when switching the flow path as described above, and uses one or a plurality of the control methods described below. It is adopted to control each component provided in the vehicle air purifying device 10. 4 to 9 are diagrams showing a control method in a vehicle air purification system.

In each of the control methods described below, the control device 20 also desorbs the flow path for returning the purified air from which carbon dioxide and water vapor have been removed to the passenger compartment of the electric vehicle and the previously removed carbon dioxide and water vapor. The flow path for exhausting to the outside of the electric vehicle is periodically switched. As a result, in each of the control methods described below, the purified air from which carbon dioxide and water vapor have been removed is returned to the passenger compartment of the electric vehicle, and the removed substance air obtained by regenerating the adsorption block 140 is electrically operated, as in the comparative example. It is exhausted to the outside of the vehicle. In the following description as well, in order to facilitate the description, a case where water vapor is removed from the inside air by the vehicle air purifying device 10 will be described as in the comparative example.

4 to 9 show changes in the state of each component of the vehicle air purifier 10 during the purification period for four cycles in which the flow path is switched by the control of the control device 20, as in FIG. Shows. More specifically, also in FIGS. 4 to 9, the air volume of the inside air flowing in the first air chamber 103-1 (first flow path) and the inside air flowing in the second air chamber 1032 (second flow path). The air volume, the on and off states of the first heating device 130-1 and the second heating device 130-2, respectively, and the first flow path switching mechanism 150-1 and the second flow path switching mechanism 150-2, respectively. Indicates a state in which the exhaust port for exhausting the air sent to the corresponding air chamber 104 is switched.

Further, also in FIGS. 4 to 9, similarly to FIG. 3, the inside air sucked by the vehicle air purifying device 10 from the suction port 101, the purified air exhausted from the first exhaust port 105, and the second exhaust port 106 are also shown. An example of a change in the amount of water vapor contained in each air with the removed substance air exhausted from the air is shown as a change in absolute humidity. As for the change in absolute humidity shown in FIGS. 4 to 9, similarly to FIG. 3, when the absolute humidity is lower than the absolute humidity of the inside air, the adsorption block 140 is adsorbing the water vapor contained in the inside air. When the absolute humidity is equal to or higher than the absolute humidity of the inside air, the water vapor adsorbed by the adsorption block 140 is attached / detached (regenerating the adsorption block 140).

(First control method)
A first control method in the vehicle air purification system 1 will be described with reference to FIG. In the first control method shown in FIG. 4, the water vapor desorbed from the adsorption block 140 to the purified air after the flow path is switched by changing the timing at which the control device 20 turns off the heating device 130. It is a control method that suppresses the inclusion of water vapor.

More specifically, in the first control method, the control device 20 controls the next purification period as in the control of the heating device 130 circled with a broken line in each purification period P shown in FIG. At a predetermined time (for example, about 30 [sec] to 1 [min]) before the time when P starts, the heating device 130 arranged in the flow path for regenerating the adsorption block 140 is turned off. .. For example, in the purification period P1, the control device 20 is a second heating device arranged in the second flow path for regenerating the second adsorption block 140-2 at a time T1 before the time when the purification period P2 starts. Turn 130-2 off. At the timing of time T1 when the control device 20 turns off the second heating device 130-2, the inside air for removing water vapor after switching the flow path is not heated by the residual heat of the second heating device 130-2. When the purification period P2 starts, it is a timing to secure the time required for the second adsorption block 140-2 to be in a state of removing the water vapor contained in the inner air. For example, the timing of the time T1 at which the control device 20 turns off the second heating device 130-2 is at least a timing corresponding to the period P in the comparative example before the timing at which the purification period P2 starts. Is.

As a result, in the first control method, the period during which the state in which the adsorption block 140 desorbs and regenerates the adsorbed water vapor, which is shown in the period P in FIG. 4, continues (the period corresponding to the period P in the comparative example). ) Is moved forward. In other words, in the first control method, the period indicated by the period P is within the period of each purification period P. As a result, the adsorption block 140 is already in a state where it can adsorb water vapor at the timing when the next purification period P starts.

As described above, in the first control method, the control device 20 desorbs and desorbs the previously removed water vapor to the outside of the electric vehicle at a timing predetermined time before the start time of each purification period P. By turning off the heating device 130 arranged in the exhaust flow path, when the next purification period P is started, the inside air passing through the adsorption block 140 may be adsorbed by the adsorption block 140. Make sure it is as cool as possible. As a result, in the first control method, the purified air containing the desorbed water vapor is returned to the passenger compartment of the electric vehicle for a while after the control device 20 switches the flow path, and the window of the vehicle is clouded. Can be suppressed. Further, by shortening the on state of the heating device, it is possible to reduce the amount of electric power used.

At the timings of time T1, time T2, time T3, and time T4 shown in FIG. 4, the inside air for removing water vapor after switching the flow path is not heated by the residual heat of the heating device 130, and the next purification period P When the above starts, the timing may be sufficient to secure the time required for the adsorption block 140 to be in a state of removing the water vapor contained in the inner air. Therefore, the timings of time T1, time T2, time T3, and time T4 are adjusted based on the results of monitoring the temperature of the adsorption block 140, the temperature of the purified air, the concentration of the substance to be purified contained in the purified air, and the like. It may be the timing.

(Second control method)
A second control method in the vehicle air purification system 1 will be described with reference to FIG. In the second control method shown in FIG. 5, the control device 20 controls the air volume of the inside air sent to the air chamber 103 at the timing when the heating device 130 in the first control method is turned off. This is a control method for suppressing the inclusion of water vapor desorbed from the adsorption block 140 in the purified air after switching the flow path.

More specifically, in the second control method, the control device 20 controls the air distribution mechanism 120 as in the control of the air chamber 103 circled with a broken line in each purification period P shown in FIG. By controlling, the ratio of the inside air to be distributed to the air chamber 103 arranged in the flow path for regenerating the adsorption block 140 at a predetermined time before the time when the next purification period P starts is predetermined. Increase by a percentage. For example, in the purification period P1, the control device 20 starts from the time T1 before the time when the purification period P2 starts, that is, while the second heating device 130-2 is turned off in the purification period P1, the inside air. The air volume of the inside air flowing in the second flow path for adsorbing the water vapor contained in the second adsorption block 140-2 to the second adsorption block 140-2 is increased. As a result, in the second control method, in each purification period P, although it is lower than when the purified air from which water vapor has been removed is returned to the passenger compartment of the electric vehicle, the adsorption block is performed while the heating device 130 is turned off. The amount of air flowing into the air chamber 103 arranged in the flow path for regenerating the 140 increases. In the second control method, as the ratio of the inside air distributed to the air chamber 103 by the control device 20 is increased, the inside air flowing to the air chamber 103 arranged in the flow path for adsorbing the water vapor to the adsorption block 140. The air volume of is low.

As a result, in the second control method, in addition to the state of the first control method, the amount of shyness passing through the regenerating adsorption block 140 increases. As a result, the adsorbed block 140 being regenerated is cooled earlier, and when the next purification period P starts, the adsorbed block 140 is in a state where water vapor can be adsorbed more reliably than in the case of the first control method. ing.

As described above, in the second control method as well, as in the first control method, the water vapor previously removed by the control device 20 at a timing predetermined time before the start time of each purification period P. The heating device 130 arranged in the flow path for exhausting to the outside of the electric vehicle is turned off. Further, in the second control method, in each purification period P, the control device 20 desorbs and desorbs the previously removed water vapor and exhausts it to the outside of the electric vehicle in conjunction with the timing when the heating device 130 is turned off. Increase the proportion of internal air flowing through the flow path. As a result, when the next purification period P is started, the inside air passing through the adsorption block 140 is more reliably cooled to a temperature at which the adsorption block 140 can adsorb water vapor. As a result, in the second control method as well as in the first control method, the purified air containing the desorbed water vapor returns to the passenger compartment of the electric vehicle for a while after the control device 20 switches the flow path. It is possible to prevent the window of the vehicle from becoming cloudy.

In the second control method, the adsorption block 140 regenerated by increasing the proportion of the inside air that is desorbed from the previously removed carbon dioxide and water vapor and flows into the flow path to be exhausted to the outside of the electric vehicle is the first. It becomes a state where water vapor can be adsorbed faster than the control method. Therefore, in the second control method, the timing for turning off the heating device 130 may be later than that in the first control method. That is, the timings of the time T1, the time T2, the time T3, and the time T4 shown in FIG. 5 are set to the timings after the timings of the time T1, the time T2, the time T3, and the time T4 in the first control method. Can be done. As a result, in the second control method, more time can be secured for regenerating the adsorption block 140 than in the first control method.

(Third control method)
A third control method in the vehicle air purification system 1 will be described with reference to FIG. In the third control method shown in FIG. 6, the control device 20 switches the flow path by changing the timing of switching the exhaust port in which the air flow predominantly flows into each flow path by the flow path switching mechanism 150. This is a control method for suppressing the later purified air from containing the water vapor desorbed from the adsorption block 140.

More specifically, in the third control method, the control device 20 is used for each of the control devices 20 as in the control of the flow path switching mechanism 150 circled with a broken line in each purification period P shown in FIG. From the first time when the purification period P starts to a predetermined time (for example, about 30 [sec] to 1 [min]), the exhaust port from the second exhaust port 106 to the first exhaust port 105 by the flow path switching mechanism 150 Delay the switch. For example, in the purification period P2, the control device 20 uses the second flow path switching mechanism 150-2 to perform the 2nd to 2nd exhaust ports 106-2 to the 2nd from the first time when the purification period P2 starts to the time T11. 1 Delay the switching of the exhaust port to the exhaust port 105-2. That is, in the control device 20, the second flow path switching mechanism 150-2 serves as an exhaust port for exhausting the air (removed substance air) sent to the second air chamber 104-2 during the purification period P1. The state of switching to the exhaust port 106-2 is continued. After that, the control device 20 controls the second flow path switching mechanism 150-2 at the time T11 to exhaust the air (purified air) sent to the second air chamber 104-2. Is switched to the 2-1 exhaust port 105-2. The timing of the time T11 when the control device 20 switches the exhaust port of the air sent to the second air chamber 104-2 is the residual heat of the second heating device 130-2 with respect to the inside air for removing water vapor after switching the flow path. It is a timing to secure the time required for the second adsorption block 140-2 to be in a state of removing the water vapor contained in the inner air after the heating by the air is settled. For example, the timing of the time T11 at which the control device 20 causes the second flow path switching mechanism 150-2 to switch the exhaust port is at least after the timing corresponding to the period P in the comparative example from the timing when the purification period P2 starts. It is the timing of.

As a result, in the third control method, the period during which the state in which the adsorption block 140 desorbs and regenerates the adsorbed water vapor, which is shown in the period P in FIG. 6, continues (the period corresponding to the period P in the comparative example). ) Is completed, the purified air sent to the air chamber 104 is exhausted from the first exhaust port 105 and returned to the passenger compartment of the electric vehicle. In other words, in the third control method, the adsorption block 140 is heated by the residual heat of the heating device 130 that was turned on to regenerate the adsorption block 140 in the previous purification period P, and the adsorption block 140 is previously in the current purification period P as well. The purified air in a state where the water vapor adsorbed on the surface has been desorbed is exhausted to the outside of the electric vehicle from the second exhaust port 106 as the removal substance air.

As described above, in the third control method, the control device 20 sends the air sent to the air chamber 104 by the flow path switching mechanism 150 from the first time when each purification period P starts to the timing after a predetermined time. By delaying the switching of the exhaust port to be exhausted, the water vapor previously adsorbed by the adsorption block 140 due to being heated by the residual heat of the heating device 130 that was turned on in the previous purification period P is desorbed during this period. The purified air in the closed state is exhausted to the outside of the electric vehicle as the removal material air. As a result, in the third control method, as in the first control method and the second control method, the purified air containing the desorbed water vapor is electrically operated for a while after the control device 20 switches the flow path. It is possible to prevent the vehicle from being returned to the passenger compartment of the vehicle and clouding the windows of the vehicle.

At the timings of time T11, time T12, time T13, and time T14 shown in FIG. 6, the heating by the residual heat of the heating device 130 for the inside air that removes water vapor after switching the flow path is settled, and the adsorption block 140 is inside the air. The timing may be sufficient to secure the time required to remove the contained water vapor. Therefore, the timings of time T11, time T12, time T13, and time T14 are the temperature of the suction block 140, the temperature of the purified air exhausted from the first exhaust port 105, the concentration of the substance to be purified contained in the purified air, and the like. The timing may be adjusted based on the result of monitoring. For example, the temperature of the adsorption block 140 detected by a temperature sensor or the like and the temperature of purified air are monitored, and when the monitored temperature becomes equal to or lower than a predetermined temperature threshold, time T11, time T12, time T13, and time T14 It may be the timing of. Further, for example, the concentration of the substance to be purified contained in the purified air detected by the concentration sensor or the like is monitored, and when the monitored concentration becomes equal to or less than the threshold value of the predetermined concentration, the time is T11, the time T12, the time T13, and the time. It may be the timing of T14.

(Fourth control method)
A fourth control method in the vehicle air purification system 1 will be described with reference to FIG. 7. In the fourth control method shown in FIG. 7, the control device 20 switches the flow path by changing the timing of switching the exhaust port in which the air flow predominantly flows in each flow path by the flow path switching mechanism 150. This is another control method for suppressing the later purified air from containing the water vapor desorbed from the adsorption block 140. In the fourth control method, the timing of switching the exhaust port for exhausting air by the flow path switching mechanism 150 is different from that of the third control method.

More specifically, in the fourth control method, the control device 20 is used for each of the control devices 20 as in the control of the flow path switching mechanism 150 circled with a broken line in each purification period P shown in FIG. From the first time when the purification period P starts to a predetermined time (for example, about 30 [sec] to 1 [min]), the switching of the exhaust port by each flow path switching mechanism 150 is delayed. For example, in the purification period P2, the control device 20 uses the second flow path switching mechanism 150-2 to perform the 2nd to 2nd exhaust ports 106-2 to the 2nd from the first time when the purification period P2 starts to the time T11. Switching of the exhaust port to 1 exhaust port 105-2 and switching of the exhaust port from the 1-1 exhaust port 105-1 to the 1-2 exhaust port 106-1 by the first flow path switching mechanism 150-1. Delay both. That is, in the fourth control method, in addition to delaying the timing at which the control device 20 switches the exhaust port by the second flow path switching mechanism 150-2 in the third control method, the first flow path switching mechanism 150- The timing of switching the exhaust port is also delayed by 1. The timing of the time T11 at which the control device 20 causes the first flow path switching mechanism 150-1 and the second flow path switching mechanism 150-2 to switch the exhaust port of the air sent to the air chamber 104 is the third control. The timing is based on the same idea as the method.

As a result, in the fourth control method as well, as in the third control method, the adsorption block 140 is heated by the residual heat of the heating device 130 that was turned on to regenerate the adsorption block 140 in the previous purification period P, and the current purification is performed. Even in the period P, the purified air in the state where the adsorption block 140 has desorbed the previously adsorbed water vapor is exhausted to the outside of the electric vehicle from the second exhaust port 106 as the removal substance air. Further, in the fourth control method, the removed substance air whose absolute humidity is lower than the absolute humidity of the inside air shown in the period P in FIG. 7, that is, the water vapor adsorbed by the adsorption block 140 in each purification period P. The inside air, which has not been heated to the temperature at which it is attached and detached and is in a state where water vapor is adsorbed by the adsorption block 140, is returned to the passenger compartment of the electric vehicle from the flow path switching mechanism 150 as purified air.

As described above, in the fourth control method, the control device 20 sends the air sent to the air chamber 104 by the flow path switching mechanism 150 from the first time when each purification period P starts to the timing after a predetermined time. Delays the switching of the exhaust port to exhaust. As a result, in the fourth control method as well as in the third control method, the adsorption block 140 was previously adsorbed by being heated by the residual heat of the heating device 130 that had been turned on in the previous purification period P. Purified air in a state where water vapor has been desorbed is exhausted to the outside of the electric vehicle as removal substance air. As a result, in the fourth control method, as in the first control method to the third control method, the purified air containing the desorbed water vapor is electrically operated for a while after the control device 20 switches the flow path. It is possible to prevent the vehicle from being returned to the passenger compartment of the vehicle and clouding the windows of the vehicle.

Further, in the fourth control method, the adsorption block 140 adsorbs water vapor in the current purification period P while the control device 20 delays the switching of the exhaust port to the flow path switching mechanism 150 in each purification period P. The removed substance air in the state of being removed is returned to the passenger compartment of the electric vehicle as purified air. As a result, in the fourth control method, the removed substance air from which water vapor has been removed, which is shown by the change in absolute humidity in FIG. 7, can be effectively used as purified air without being exhausted to the outside of the electric vehicle. can.

(Fifth control method)
A fifth control method in the vehicle air purification system 1 will be described with reference to FIG. The fifth control method shown in FIG. 8 includes a change in the timing at which the control device 20 switches the exhaust port for predominantly flowing air to each flow path by the flow path switching mechanism 150 in the third control method. This is a control method for suppressing the inclusion of water vapor desorbed from the adsorption block 140 in the purified air after switching the flow path by controlling the air volume of the inside air sent to the air chamber 103.

More specifically, in the fifth control method, the control device 20 is used for each flow path as in the control of the air chamber 103 circled with a broken line in each purification period P shown in FIG. While delaying the switching of the exhaust port to the switching mechanism 150, the blower 110 is controlled to increase the amount of the inside air sucked from the suction port 101 and sent out to the air chamber 102, and the air distribution mechanism 120 is controlled. The ratio of the internal air distributed to the flow path on the side where the water vapor contained in the internal air is adsorbed by the adsorption block 140 is increased by a predetermined ratio. For example, in the purification period P1, the control device 20 controls the blower 110 from the first time when the purification period P2 starts to the time T11, and sucks the air from the suction port 101 and sends it to the air chamber 102. The second air is adsorbed to the second suction block 140-2 by increasing the ratio of the inside air distributed to the second air chamber 103-2 by controlling the air distribution mechanism 120. Increase the amount of air flowing in the flow path. As a result, in the fifth control method, the air chamber arranged in the flow path on the side where the water vapor is adsorbed on the adsorption block 140 while the flow path switching mechanism 150 delays the switching of the exhaust port in each purification period P. The air volume of the inside air flowing through 103 becomes high. In the fifth control method, the inside air distributed to the flow path on the side where the suction block 140 is regenerated while the control device 20 delays the switching of the exhaust port to the flow path switching mechanism 150 in each purification period P. By controlling the air distribution mechanism 120 so as to reduce the ratio of the air, the air volume of the inside air flowing in the air chamber 103 arranged in the flow path for regenerating the adsorption block 140 does not change.

As a result, in the fifth control method, in addition to the state of the third control method, the amount of inside air passing through the adsorption block 140 that adsorbs water vapor increases. As a result, the adsorption block 140 that adsorbs water vapor in the current purification period P, that is, the inside air heated by the heating device 130 in the previous purification period P has passed through, and was previously adsorbed in the current purification period P as well. The adsorption block 140 in the state where the water vapor has been desorbed is cooled earlier, and is in a state where the water vapor can be adsorbed by the time the exhaust port is switched by the flow path switching mechanism 150.

As described above, in the fifth control method as well, the control device 20 exhausts the air sent to the air chamber 104 by the flow path switching mechanism 150 in each purification period P, as in the third control method. By delaying the switching of the mouth, during this period, the adsorption block 140 has desorbed the previously adsorbed water vapor due to being heated by the residual heat of the heating device 130 that was turned on in the previous purification period P. The purified air in the state is exhausted to the outside of the electric vehicle as the removal material air. As a result, in the fifth control method as well, as in the first control method to the fourth control method, the purified air containing the desorbed water vapor is electrically operated for a while after the control device 20 switches the flow path. It is possible to prevent the vehicle from being returned to the passenger compartment of the vehicle and clouding the windows of the vehicle.

Further, in the fifth control method, while the control device 20 delays the switching of the exhaust port to the flow path switching mechanism 150 in each purification period P, the purified air from which water vapor is removed is used in the passenger compartment of the electric vehicle. Increase the air volume of the inside air flowing through the flow path. As a result, in the fifth control method, the adsorption block 140 for removing water vapor is cooled faster to a temperature at which water vapor can be adsorbed.

In the fifth control method, a case where control of the air volume of the inside air sent to the air chamber 103 is added to the third control method has been described. However, the idea of adding the control of the air volume of the inside air sent to the air chamber 103 in the fifth control method is not limited to the application to the third control method, but is applied to the fourth control method. May be good. That is, control of the air volume of the inside air sent to the air chamber 103 may be added to the fourth control method. In the control method in this case, in addition to the effect of the fourth control method, the adsorption block 140 for removing water vapor is cooled faster to a temperature at which water vapor can be adsorbed, which is a fifth control method. Can be obtained at the same time.

(Sixth control method)
A sixth control method in the vehicle air purification system 1 will be described with reference to FIG. 9. The sixth control method shown in FIG. 9 includes a change in the timing at which the control device 20 switches the exhaust port for predominantly flowing air to each flow path by the flow path switching mechanism 150 in the third control method. This is another control method for suppressing the water vapor desorbed from the adsorption block 140 from being included in the purified air after switching the flow path by controlling the air volume of the inside air sent to the air chamber 103. .. In the sixth control method, the control of the air volume of the inside air sent to the air chamber 103 is different from the fifth control method.

More specifically, in the fifth control method, the control device 20 is used for each flow path as in the control of the air chamber 103 circled with a broken line in each purification period P shown in FIG. While delaying the switching of the exhaust port to the switching mechanism 150, the blower 110 is controlled to reduce the amount of the inside air sucked from the suction port 101 and sent to the air chamber 102, and the air distribution mechanism 120 is controlled. The ratio of the internal air distributed to the flow path on the side where the water vapor contained in the internal air is adsorbed in the adsorption block 140 is reduced by a predetermined ratio. For example, in the purification period P1, the control device 20 controls the blower 110 from the first time when the purification period P2 starts to the time T21, and sucks the air from the suction port 101 and sends it to the air chamber 102. By lowering the temperature and controlling the air distribution mechanism 120 to reduce the proportion of the inside air distributed to the second air chamber 103-2, the second suction block 140-2 adsorbs the water vapor contained in the inside air. Reduce the amount of air flowing in the flow path. As a result, in the sixth control method, the air chamber arranged in the flow path on the side where the water vapor is adsorbed by the suction block 140 while the flow path switching mechanism 150 delays the switching of the exhaust port in each purification period P. The air volume of the inside air flowing through 103 becomes low. In the sixth control method, the inside air distributed to the flow path on the side where the suction block 140 is regenerated while the control device 20 delays the switching of the exhaust port to the flow path switching mechanism 150 in each purification period P. By controlling the air distribution mechanism 120 so as to reduce the ratio of the air, the air volume of the inside air flowing in the air chamber 103 arranged in the flow path for regenerating the adsorption block 140 does not change.

As a result, the sixth control method is also heated by the residual heat of the heating device 130 that was turned on to regenerate the adsorption block 140 during the previous purification period P, as in the third control method. Even in the purification period P of the above, the purified air in a state where the adsorption block 140 has desorbed the previously adsorbed water vapor is exhausted to the outside of the electric vehicle from the second exhaust port 106 as the removal material air. Here, the purified air exhausted from the second exhaust port 106 to the outside of the electric vehicle as the removed material air is in a state in which the water vapor previously adsorbed by the adsorption block 140 has been desorbed even in the current purification period P. However, since the air is heated by the residual heat of the heating device 130, the energy (for example, heat energy) can be effectively utilized. That is, it is considered that exhausting the purified air having energy that can be utilized to the outside of the electric vehicle means that the energy is lost in the vehicle air purifying device 10. Therefore, in the sixth control method, the amount of inside air passing through the adsorption block 140 that adsorbs water vapor is reduced while the flow path switching mechanism 150 delays the switching of the exhaust port in the current purification period P. As a result, in the sixth control method, the suction block 140 that adsorbs water vapor is cooled, and the amount of purified air that is exhausted from the second exhaust port 106 to the outside of the electric vehicle as the removal material air is suppressed, and the air for the vehicle is purified. The energy loss in the device 10 can be reduced.

As described above, in the sixth control method as well, the control device 20 exhausts the air sent to the air chamber 104 by the flow path switching mechanism 150 in each purification period P, as in the third control method. While delaying the switching of the mouth, the amount of inside air passing through the adsorption block 140 that adsorbs water vapor during this period is reduced. As a result, in the sixth control method, as in the first control method to the fifth control method, the purified air containing the desorbed water vapor is electrically operated for a while after the control device 20 switches the flow path. It is possible to prevent the air from being returned to the passenger compartment of the vehicle and clouding the windows of the vehicle, and during this period, the amount of purified air discharged to the outside of the electric vehicle as removal material air is reduced to purify the air for the vehicle. The energy loss in the device 10 can be reduced.

The timings of the time T21, the time T22, the time T23, and the time T24 shown in FIG. 9 are the same as those of the third control method to the fifth control method. The timing may be sufficient to secure the time required for the heating by the residual heat of the device 130 to subside and the adsorption block 140 to be in a state of removing water vapor contained in the inner air. Therefore, the timings of the time T21, the time T22, the time T23, and the time T24 are, for example, the temperature of the adsorption block 140 detected by a temperature sensor or the like, or the temperature of the purified air exhausted from the first exhaust port 105, for example, the concentration. The timing may be adjusted based on the result of monitoring the concentration of the substance to be purified contained in the purified air detected by a sensor or the like.

As in the fifth control method, the sixth control method also describes the case where the control of the air volume of the inside air sent to the air chamber 103 is added to the third control method. However, the idea of adding the control of the air volume of the inside air sent to the air chamber 103 in the sixth control method is not limited to the application to the third control method as in the fifth control method. It may be applied to the fourth control method. In the control method in this case, in addition to the effect in the fourth control method, the energy loss in the vehicle air purifier 10 while the adsorption block 140 is cooled to a temperature at which water vapor can be adsorbed. The effect of the sixth control method of reducing the amount of water vapor can be obtained at the same time.

By such a control method, the control device 20 controls the operation of the blower 110, the air distribution mechanism 120, the heating device 130, and the flow path switching mechanism 150 provided in the vehicle air purifying device 10, for the vehicle. The suction block 140 arranged in each flow path of the air purifying device 10 switches between the adsorption of water vapor from the inside air of the vehicle interior of the electric vehicle and the desorption of the previously adsorbed water vapor. In other words, the control device 20 separates the flow path for returning the purified air adsorbed by the adsorption block 140 to the passenger compartment of the electric vehicle and the removed substance air used for desorbing the water vapor adsorbed on the adsorption block 140. Switch between the flow path for exhausting to the outside of the electric vehicle. At this time, in the control device 20, the flow path of one of the suction blocks 140 is used as a flow path for returning the purified air to the passenger compartment of the electric vehicle, and the flow path of the other suction block 140 is used for removing material air in the electric vehicle. Switch to a flow path that exhausts air to the outside of the vehicle. As a result, in the vehicle air purifying system 1, in the vehicle air purifying device 10, while the adsorption block 140 arranged in one of the flow paths is adsorbing water vapor, it is arranged in the other flow path. The adsorbed block 140 desorbs and regenerates the previously adsorbed water vapor. That is, in the vehicle air cleaning system 1, the operation of returning the purified air obtained by removing water vapor from the inside air of the vehicle interior of the electric vehicle to the vehicle interior of the electric vehicle by the vehicle air cleaning device 10 and the operation of returning the previously removed water vapor to the vehicle interior of the electric vehicle are performed. At the same time, the removal substance air used for discharging the air to the outside of the electric vehicle is discharged to the outside of the electric vehicle. Then, the control device 20 repeats switching between the flow path for returning the purified air to the vehicle interior of the electric vehicle and the flow path for exhausting the removed substance air to the outside of the vehicle of the electric vehicle at predetermined timings. As a result, in the vehicle air purifying system 1, the purified air by the vehicle air purifying device 10 is continuously sent out to the vehicle interior and the removed substance air is sent out to the outside of the vehicle (exhaust).

As described above, the first control method to the sixth control method are not the control methods exclusively performed by the control device 20 in the vehicle air purification system 1, and the control device 20 is the first control. From the method to the sixth control method, a plurality of methods are combined to switch between a flow path for returning purified air to the passenger compartment of the electric vehicle and a flow path for exhausting the removed material air to the outside of the electric vehicle. May be good.

In the first control method to the sixth control method, a case where water vapor is removed from the inside air by the vehicle air purifying device 10 has been described. However, as described above, the adsorption block 140 arranged in each flow path in the vehicle air purifier 10 adsorbs at least carbon dioxide and water vapor, and attaches / detaches the adsorbed carbon dioxide and water vapor by regeneration. .. However, the control by the control device 20 when the suction block 140 arranged in each flow path in the vehicle air purifying device 10 removes carbon dioxide is similarly considered by replacing the above-mentioned water vapor with carbon dioxide. be able to. Therefore, detailed description of the control of the control device 20 when the vehicle air purifying device 10 removes carbon dioxide will be omitted.

As described above, according to the embodiment for carrying out the present invention, the control device 20 includes a blower 110, an air distribution mechanism 120, a heating device 130, and a flow path switching mechanism provided in the vehicle air purifying device 10. By controlling the operation of the 150, the flow of the inside air (purified air) from which the substance to be purified is removed by the adsorption block 140 is returned to the passenger compartment of the electric vehicle in one of the flow paths of the vehicle air purifying device 10. Switching between the flow path and the other flow path as the flow path for exhausting the air (removed substance air) regenerated by desorbing the purification target substance previously adsorbed by the adsorption block 140 to the outside of the electric vehicle. Repeat at predetermined timings. Thereby, in the embodiment for carrying out the present invention, the operation of returning the purified air to the vehicle interior of the electric vehicle by the vehicle air purifying device 10 and the operation of exhausting the removed material air to the outside of the electric vehicle are performed at the same time. In the vehicle air purifying device 10, the suction block 140 arranged in one of the flow paths adsorbs the substance to be purified while the suction block 140 arranged in the other flow path adsorbs the substance to be purified. It is regenerated by desorbing the substance to be purified.

As a result, in the electric vehicle equipped with the vehicle air purification system 1 for carrying out the present invention, even when the air conditioning system is operated in the inside air circulation mode in which the temperature is adjusted while circulating the air in the vehicle interior. The purified air from which the substance to be purified has been removed from the inside air in the vehicle interior is circulated by the vehicle air purifying system 1. Therefore, when an electric vehicle equipped with the vehicle air purification system 1 for carrying out the present invention is used, for example, in winter, even when the air conditioning system is operated in the internal air circulation mode, the vehicle air is used. The purified air returned to the passenger compartment of the electric vehicle by the cleaning device 10 does not cause the window of the electric vehicle to become cloudy or affect the physical condition of the user (user) of the vehicle. This is to drive the electric vehicle when the air conditioning system of the electric vehicle equipped with the vehicle air purification system 1 for carrying out the present invention is operated in the outside air introduction mode that takes in the air (outside air) outside the vehicle. The same applies even in the case of a configuration in which the inside air is mixed at a predetermined ratio in order to suppress the power consumption of the battery as the source.

Moreover, in the embodiment for carrying out the present invention, the vehicle air purifying device 10 constituting the vehicle air purifying system 1 has two flow paths for removing the substance to be purified and purifying the inside air. The control device 20 constituting the vehicle air purification system 1 alternately switches the flow path to continuously send the purified air to the inside of the vehicle and the removed material air to the outside of the vehicle (exhaust). .. Then, in the embodiment for carrying out the present invention, even when the vehicle air purifier 10 is continuously operated, the purification performance of the suction block 140 arranged in each flow path in the vehicle air purifier 10 is improved. Based on this, it is possible to determine the time interval for alternately switching between the flow path for returning the purified air to the passenger compartment of the electric vehicle and the flow path for exhausting the removed material air to the outside of the electric vehicle. Thereby, in the embodiment for carrying out the present invention, in order to improve the purification performance in the suction block 140, the suction block 140 containing the suction material having a larger capacity is provided in each flow path of the vehicle air purifying device 10. The operation of removing substances to be purified (carbon dioxide and water vapor) can be continued for a long time even if they are not placed in the water vapor. As a result, in the embodiment for carrying out the present invention, the vehicle air purifying device 10 constituting the vehicle air purifying system 1 is downsized while having a configuration in which the substance to be purified is continuously removed from the inside air for a long time. Can be easily realized.

In the embodiment for carrying out the present invention, an example has been described in which the vehicle equipped with the vehicle air purification system 1 is an electric vehicle that travels by using the electric power supplied from the battery. However, although the effect of being able to suppress the power consumption of the battery in the vehicle air purification system 1 is mainly effective for electric vehicles, the substance to be purified in the vehicle air purification system 1 is long. Regarding the effect of being able to continue removing time, it is not an effect that is effective only for electric vehicles. That is, the effect that the substance to be purified in the vehicle air purification system 1 can be continuously removed for a long time is, for example, in a four-wheeled vehicle such as an automobile that is driven by an internal combustion engine such as a diesel engine or a gasoline engine. Is also an effective effect. Therefore, the vehicle equipped with the vehicle air purification system 1 is not limited to the electric vehicle, and any vehicle having a cabin for adjusting the air temperature by the air conditioning system is driven by an internal combustion engine. This includes all types of vehicles, such as vehicles that are driven by a vehicle and hybrid vehicles that are driven by a combination of a battery and an internal combustion engine.

Although the embodiments for carrying out the present invention have been described above with reference to the embodiments, the present invention is not limited to these embodiments, and various modifications and substitutions are made without departing from the gist of the present invention. Can be added.

1 ... Vehicle air cleaning system 10 ... Vehicle air cleaning device 10a ... Partition wall 101 ... Suction port 102 ... Air chamber 103 ... Air chamber 103-1 ... 1st air chamber 103-2 ... 2nd air chamber 104 ... Air chamber 104-1 ... 1st air chamber 104-2 ... 2nd air chamber 105 ... 1st exhaust port 105- 1 ... 1-1 exhaust port 105-2 ... 2-1 exhaust port 106 ... second exhaust port 106-1 ... 1-2 exhaust port 106-2 ... second -2 Exhaust port 110 ... Blower 120 ... Air distribution mechanism 121 ... Opening / closing door 130 ... Heating device 130-1 ... First heating device 130-2 ... Second heating device 140 ...・ ・ Suction block 140-1 ・ ・ ・ 1st suction block 140-2 ・ ・ ・ 2nd suction block 150 ・ ・ ・ Flow path switching mechanism 150-1 ・ ・ ・ First flow path switching mechanism 150-2 ・ ・ ・2nd flow path switching mechanism 151 ... Open / close door 151-1 ... 1st open / close door 151-2 ... 2nd open / close door 20 ... Control device

Claims (11)

The first flow path that communicates with the passenger compartment of the vehicle,
The second flow path communicating with the passenger compartment and
A blower that circulates air from the passenger compartment to the first flow path and the second flow path.
An air distribution mechanism that distributes the air flowing from the passenger compartment to one end of the first flow path and one end of the second flow path and sends it out.
A first flow path connected to the other end of the first flow path and communicating with the passenger compartment, and a first flow path.
The first and second flow paths that are connected to the other end of the first flow path and communicate with the outside of the passenger compartment, and the first and second flow paths.
A first heating device, which is a heating device arranged in the first flow path and that heats the air inside the first flow path,
At least carbon dioxide and water vapor contained in the air inside the first flow path are adsorbed as substances to be purified, and the air heated by the first heating device is passed through the first flow path. At that time, the first adsorption block, which is an adsorption block for desorbing the substance to be purified, and
A first flow path switching mechanism that is arranged in the first flow path and causes air that has passed through the first suction block to flow predominantly to either the 1-1 flow path or the 1-2 flow path. 1 flow path switching mechanism and
A second flow path connected to the other end of the second flow path and communicating with the passenger compartment, and a second flow path.
The 2-2 flow path, which is connected to the other end of the second flow path and communicates with the outside of the passenger compartment,
A second heating device, which is a heating device arranged in the second flow path and that heats the air inside the second flow path,
When the substance to be purified, which is arranged in the second flow path and is contained in the air inside the second flow path, is adsorbed and the air heated by the second heating device is passed through, the purification target is obtained. The second adsorption block, which is an adsorption block that desorbs substances,
A flow path switching mechanism that is arranged in the second flow path and causes air that has passed through the second suction block to flow predominantly to either the 2-1 flow path or the 2-2 flow path. 2 flow path switching mechanism and
The first heating device is not operated, and the air that has passed through the first adsorption block is predominantly flowed to the 1-1 flow path by the first flow path switching mechanism, and the second heating device is operated. Then, the first state in which the air passing through the second adsorption block is predominantly flowed to the 2-2 flow path by the second flow path switching mechanism and the first heating device are operated to perform the first state. The air that has passed through the first adsorption block is predominantly flowed to the 1-2 flow path by the one flow path switching mechanism, and the second heating device is not operated, and the second flow path switching mechanism causes the first flow path. 2 A control device that alternately realizes a second state in which air that has passed through the adsorption block flows predominantly in the 2-1 flow path.
It is an air purification system for vehicles equipped with
The control device is
When switching between the first state and the second state, air is introduced into the passenger compartment from the flow path of the first flow path and the second flow path on which the substance to be purified is desorbed. Control each component at a timing that can suppress the flow ,
When switching from the first state to the second state,
The air that has passed through the second adsorption block by the second flow path switching mechanism has been passed from the state in which the air that has passed through the second adsorption block predominantly flows to the 2-2 flow path. The second heating device in operation is stopped before switching to a state in which the air is predominantly flowed into the 2-1 flow path.
When switching from the second state to the first state,
The air that has passed through the first suction block by the first flow path switching mechanism is changed from the state in which the air that has passed through the first suction block is predominantly flowed to the first and second flow paths by the first flow path switching mechanism. The first heating device in operation is stopped before switching to a state in which the air is predominantly flowed into the 1-1 flow path.
In conjunction with stopping any of the heating devices, the ratio of the air to be distributed and sent out to the flow path on the side where the substance to be purified is desorbed by the air distribution mechanism is set to the heating of any of the above. Higher than before stopping the device ,
Air purification system for vehicles. The control device is
Time is measured by a timer from the switching of the previous flow path by the first flow path switching mechanism and the switching of the previous flow path by the second flow path switching mechanism, and the heating device is stopped at a predetermined time. ,
The vehicle air purification system according to claim 1 . The control device is
When switching from the first state to the second state,
The air that has passed through the second adsorption block by the second flow path switching mechanism has been passed from the state in which the air that has passed through the second adsorption block predominantly flows to the 2-2 flow path. Delays the switch to the state in which the air flows predominantly in the 2-1 flow path.
When switching from the second state to the first state,
The air that has passed through the first suction block by the first flow path switching mechanism is changed from the state in which the air that has passed through the first suction block is predominantly flowed to the first and second flow paths by the first flow path switching mechanism. Delays the switch to the state in which the air flows predominantly in the 1-1 flow path.
The vehicle air purification system according to claim 1 or 2 . The control device is
The switching from the first state to the second state and the switching from the second state to the first state are timed by a timer, and the flow path switching mechanism is used until a predetermined time. Delays the switching of the state in which the air flows predominantly,
The vehicle air purification system according to claim 3 . The control device is
From the switching from the first state to the second state and the switching from the second state to the first state, the flow path on the side adsorbing the substance to be purified detected by the temperature sensor The temperature of any of the placed adsorption blocks is monitored, and the switching of the state in which air is predominantly flowed by any of the flow path switching mechanisms is delayed until the monitored temperature becomes equal to or lower than a predetermined temperature threshold. ,
The vehicle air purification system according to claim 3 or 4 . The control device is
From the flow path on the side that adsorbs the substance to be purified, which is detected by the temperature sensor from the switching from the first state to the second state and the switching from the second state to the first state. The temperature of the predominantly flowed air is monitored, and the switching of the state in which the air is predominantly flowed by any of the above-mentioned flow path switching mechanisms is delayed until the monitored temperature becomes equal to or lower than a predetermined temperature threshold value.
The vehicle air purification system according to any one of claims 3 to 5 . The control device is
From the flow path on the side that adsorbs the substance to be purified, which is detected by the concentration sensor from the switching from the first state to the second state and the switching from the second state to the first state. The concentration of the substance to be purified contained in the predominantly flowed air is monitored, and the air is predominantly flowed by one of the flow path switching mechanisms until the monitored concentration becomes equal to or lower than the predetermined concentration threshold value. Delay the switching of states,
The vehicle air purification system according to any one of claims 3 to 6 . The control device is
In conjunction with delaying the switching of the state in which air is predominantly flowed by any of the above-mentioned flow path switching mechanisms,
When switching from the first state to the second state,
The air that has passed through the first suction block by the first flow path switching mechanism is changed from the state in which the air that has passed through the first suction block is predominantly flowed to the 1-1 flow path by the first flow path switching mechanism. Delays the switch to the state in which the air flows predominantly in the 1-2 flow path.
When switching from the second state to the first state,
The air that has passed through the second adsorption block by the second flow path switching mechanism has been passed from the state in which the air that has passed through the second adsorption block predominantly flows to the second flow path. Delays the switch to the state in which the air flows predominantly in the 2-2 flow path.
The vehicle air purification system according to any one of claims 3 to 7 . The control device is
The amount of air circulated toward the first flow path and the second flow path by the blower while the switching of the state in which the air is predominantly flowed is delayed by any of the flow path switching mechanisms. The amount of air is increased compared to before the switching of the state in which the air is predominantly flowed by the flow path switching mechanism is delayed, and the air is distributed and sent out to the flow path on the side where the substance to be purified is adsorbed by the air distribution mechanism. Is made higher than before delaying the switching of the state in which the air is predominantly flowed by any of the above-mentioned flow path switching mechanisms.
The vehicle air purification system according to any one of claims 3 to 8 . The control device is
The amount of air circulated toward the first flow path and the second flow path by the blower while the switching of the state in which the air is predominantly flowed is delayed by any of the flow path switching mechanisms. The air flow is reduced compared to before the switching of the state in which the air is predominantly flowed by the flow path switching mechanism, and the air is distributed and sent out to the flow path on the side where the purification target substance is adsorbed by the air distribution mechanism. Is lower than before delaying the switching of the state in which the air is predominantly flowed by any of the above-mentioned flow path switching mechanisms.
The vehicle air purification system according to any one of claims 3 to 8 . The first flow path that communicates with the passenger compartment of the vehicle,
The second flow path communicating with the passenger compartment and
A blower that circulates air from the passenger compartment to the first flow path and the second flow path.
An air distribution mechanism that distributes the air flowing from the passenger compartment to one end of the first flow path and one end of the second flow path and sends it out.
A first flow path connected to the other end of the first flow path and communicating with the passenger compartment, and a first flow path.
The first and second flow paths that are connected to the other end of the first flow path and communicate with the outside of the passenger compartment, and the first and second flow paths.
A first heating device, which is a heating device arranged in the first flow path and that heats the air inside the first flow path,
At least carbon dioxide and water vapor contained in the air inside the first flow path are adsorbed as substances to be purified, and the air heated by the first heating device is passed through the first flow path. At that time, the first adsorption block, which is an adsorption block for desorbing the substance to be purified, and
A first flow path switching mechanism that is arranged in the first flow path and causes air that has passed through the first suction block to flow predominantly to either the 1-1 flow path or the 1-2 flow path. 1 flow path switching mechanism and
A second flow path connected to the other end of the second flow path and communicating with the passenger compartment, and a second flow path.
The 2-2 flow path, which is connected to the other end of the second flow path and communicates with the outside of the passenger compartment,
A second heating device, which is a heating device arranged in the second flow path and that heats the air inside the second flow path,
When the substance to be purified, which is arranged in the second flow path and is contained in the air inside the second flow path, is adsorbed and the air heated by the second heating device is passed through, the purification target is obtained. The second adsorption block, which is an adsorption block that desorbs substances,
A second flow path switching mechanism that is arranged in the second flow path and causes air that has passed through the second suction block to flow predominantly to either the 2-1 flow path or the 2-2 flow path. 2 flow path switching mechanism and
A control device that controls each component and
Is a control method for an air purification system for vehicles equipped with
The control device
The first heating device is not operated, and the air that has passed through the first adsorption block is predominantly flowed to the 1-1 flow path by the first flow path switching mechanism, and the second heating device is operated. Then, the first state in which the air passing through the second adsorption block is predominantly flowed to the 2-2 flow path by the second flow path switching mechanism and the first heating device are operated to perform the first state. The air that has passed through the first adsorption block is predominantly flowed to the 1-2 flow path by the one flow path switching mechanism, and the second heating device is not operated, and the second flow path switching mechanism causes the first flow path. 2 The second state in which the air that has passed through the adsorption block flows predominantly in the 2-1 flow path is alternately realized.
When switching between the first state and the second state, air is introduced into the passenger compartment from the flow path of the first flow path and the second flow path on which the substance to be purified is desorbed. Control each component at a timing that can suppress the flow ,
When switching from the first state to the second state,
The air that has passed through the second suction block by the second flow path switching mechanism has passed from the state in which the air that has passed through the second suction block is predominantly flowed to the 2-2 flow path by the second flow path switching mechanism. The second heating device in operation is stopped before switching to a state in which the air is predominantly flowed into the 2-1 flow path.
When switching from the second state to the first state,
The air that has passed through the first adsorption block by the first flow path switching mechanism is changed from the state in which the air that has passed through the first adsorption block is predominantly flowed to the first and second flow paths by the first flow path switching mechanism. The first heating device in operation is stopped before switching to a state in which the air is predominantly flowed into the 1-1 flow path.
In conjunction with stopping any of the heating devices, the ratio of the air to be distributed and sent out to the flow path on the side where the substance to be purified is desorbed by the air distribution mechanism is set to the heating of any of the above. Higher than before stopping the device ,
How to control a vehicle air purification system.

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