JP5033404B2 - Air conditioner for vehicles - Google Patents

Description

  The present invention relates to a vehicle air conditioner that performs air conditioning control before an occupant gets into a vehicle in response to a remote operation.

2. Description of the Related Art Conventionally, there is known an air conditioning control device that switches on / off of air conditioning control according to the storage capacity of a battery mounted on the vehicle in response to an instruction to start air conditioning control from outside the vehicle by remote control (patent) Reference 1). According to such an apparatus, even when the internal combustion engine is stopped, air conditioning control can be performed without imposing an excessive burden on the battery.
JP-A-9-76740 (paragraphs 0039-0042)

  However, the conventional air-conditioning control device is configured to start air-conditioning control with normal power consumption when the storage capacity of the battery is greater than or equal to a predetermined value, so that the passenger enters the vehicle after performing a remote operation. There is a possibility that the vehicle interior cannot be controlled in a comfortable state until the vehicle is closed.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a vehicle capable of improving the comfort in the passenger compartment when a passenger rides when the start of air conditioning control is instructed from outside the vehicle by remote control. It is to provide an air-conditioning apparatus.

In order to solve the above-mentioned problems, an air conditioning control device according to the present invention is driven by an energy storage device (12) mounted on a vehicle and at least energy stored in the energy storage device (12), so that the vehicle interior of the vehicle An air conditioner (6) for adjusting the temperature of the air conditioner, an air conditioner remote control unit (9) for transmitting a drive signal instructing driving of the air conditioner (6), and a heat load detector (7) for detecting a heat load applied to the vehicle ), An energy storage amount detection unit (13) for detecting the energy storage amount of the energy storage device (12), and a drive signal from the air conditioning remote control unit (9), the energy storage amount detection unit (13) the detected energy storage amount is determined whether a first predetermined value or more, if the energy storage amount detected is not less than the first predetermined value, the air conditioner at a predetermined value or more power (6) Drive control Remote operation time with the air-conditioning control unit (8), riding time detecting unit for detecting the time the occupant gets on the vehicle (14), the air-conditioning remote control unit (9) detects the time which has transmitted the drive signal The air conditioning control unit (8) is driven by the air conditioning remote operation unit (9) with reference to the detection results of the boarding time detection unit (14) and the remote operation time detection unit (15). The time from when the signal is transmitted until the occupant gets into the vehicle is calculated and stored.

According to the air conditioning control device of the present invention, when the energy storage amount of the energy storage device is greater than or equal to the first predetermined value , the air conditioning device is driven with power greater than or equal to the predetermined value. The passenger compartment can be air-conditioned rapidly before getting into the vehicle, and the comfort of the passenger compartment when the passenger gets in can be improved. The air conditioning control unit calculates and stores the time from when the air conditioning remote control unit transmits radio waves to the time when the occupant gets on the vehicle with reference to the detection results of the boarding time detection device and the air conditioning means remote control time detection device. Therefore, it is possible to estimate the time from when the occupant operates the air-conditioning remote control unit until getting into the vehicle.

  Hereinafter, with reference to the drawings, the configuration and operation of a vehicle air conditioner according to first and second embodiments of the present invention will be described.

[First Embodiment]
[Configuration of vehicle air conditioner]
First, the configuration of the vehicle air conditioner according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 3.

  As shown in FIG. 1, a vehicle air conditioner 1 according to a first embodiment of the present invention includes an engine 2 such as a motor or an engine that generates a driving force for driving the vehicle (hereinafter referred to as an engine 2). A compressor 3 that compresses and compresses refrigerant in the refrigeration cycle, a compressor drive unit 4 that drives the compressor 3, a refrigeration cycle 5 that includes the compressor 3, a refrigeration cycle device, a heat exchanger, piping, and the like, and a refrigeration cycle 5, an air conditioner 6 that supplies conditioned air into the passenger compartment, a thermal load detector 7 that detects the thermal load of the passenger compartment such as the amount of solar radiation, the outside air temperature, and the vehicle room temperature, and the output of the thermal load detector 7 An air-conditioning control unit 8 that controls the air-conditioning device 6 based on an air-conditioning set value set by a passenger.

  The vehicle air conditioner 1 is set by an occupant, an air conditioning remote control unit 9 for operating the air conditioning control of the vehicle by remote operation, an occupant boarding determination unit 10 that determines whether the occupant has boarded the vehicle, and the like. An air conditioning pre-operation unit 11 that activates the air conditioner 6 when a predetermined time comes or a predetermined time elapses, an energy storage device 12 such as a storage battery (battery) that supplies energy to the compressor drive unit 4, and the energy of the energy storage device 12 The air conditioning control of the vehicle is operated by remote control by the energy storage amount detection device 13 for detecting the storage amount (storage amount), the boarding time detection device 14 for detecting the time when the occupant has boarded the vehicle, and the air conditioning remote control unit 9. Air-conditioning means remote operation time detection device 15 for detecting time and an air-conditioning sheet 16 capable of adjusting temperature are provided.

  As the compressor 3, a so-called hermetic type electric compressor integrated with a compressor driving unit 4 such as an electric motor can be selected, and is housed in one casing as shown in FIG. 2. As shown in FIG. 2, the refrigeration cycle 5 includes compressors 3 and 4, a condenser 20, an expansion valve 21, an evaporator 22, and the like, and includes a pipe for flowing a refrigerant to these components.

  The air conditioner 6 includes a refrigeration cycle 5 and, as shown in FIG. 2, an inside / outside air switching door 23 that switches inside and outside air to be introduced into the vehicle interior, a blower fan 24 that generates conditioned air, and cooling water for the engine 2. A heater core 25 that is a heat exchanger for a heating source that mainly heats using heat, an air mix door 26 that adjusts an air-conditioning air passage distribution ratio to the heater core 25, and a defroster and a ventilator in the vehicle interior. , And an air outlet selection door 27 that distributes air to any of the air outlets under the foot.

  The air conditioning control unit 8 acquires data from the thermal load detection unit 7 that measures the outside air temperature, the vehicle room temperature, the amount of solar radiation, and the like, and when the occupant operates an air conditioning setter (not shown), the air volume, the target room temperature, and the inside and outside air are switched. Setting data such as selection is input, and a predetermined calculation is performed to control the compressor 3, the compressor drive unit 4, the inside / outside air switching door 23, the blower fan 24, the air mix door 26, the outlet selection door 27, and the like.

  A communication unit 28 is incorporated in the air conditioning control unit 8 and receives a signal from the air conditioning remote control unit 9 outside the vehicle and uses it for air conditioning control. Further, the air conditioning control unit 8 is configured to receive a signal from the passenger boarding determination unit 10 and uses information on whether or not the passenger has boarded the vehicle for air conditioning control. The air conditioning pre-operation unit 11 performs air conditioning so that the air conditioning device 6 is activated and the air conditioning state is set in advance when the predetermined time set by the occupant is reached or when the predetermined time set by the occupant elapses. Thus, the air conditioner 6 can be activated at a time desired by the occupant, and air conditioning can be completed in advance before the occupant gets on the vehicle.

[Air conditioning control processing]
Next, the operation of the vehicle air conditioner 1 when the start of air conditioning control is instructed from the air conditioning remote control unit 9 will be described with reference to FIG. The flowchart shown in FIG. 3 starts at the timing when the ignition switch of the vehicle is turned off, and the pre-boarding air conditioning control process proceeds to the process of step S1.

  In the process of step S1, the air conditioning control unit 8 acquires data necessary for executing the air conditioning control process. Thereby, the process of step S1 is completed and the air-conditioning control process before boarding proceeds to the process of step S2.

  In the process of step S <b> 2, the air conditioning control unit 8 attempts to receive radio waves from the air conditioning remote operation unit 9 (remote control) via the communication unit 28. Thereby, the process of step S2 is completed and the air conditioning control process before boarding proceeds to the process of step S3.

  In the process of step S3, the air conditioning control unit 8 determines whether or not the radio wave from the air conditioning remote control unit 9 has been received by the process of step S2. If the radio wave can be received as a result of the discrimination, the air conditioning control unit 8 detects and stores the radio wave reception time ta via the air conditioning means remote operation time detection device 15 as the process of step S4, and then the air conditioning control process before boarding The process proceeds to step S7. On the other hand, if the radio wave cannot be received, the air conditioning control unit 8 advances the pre-boarding air conditioning control process to the process of step S5.

  In the process of step S5, the air conditioning control unit 8 determines whether the radio wave has already been received by determining whether the radio wave reception time ta has already been stored. If the radio wave has not been received as a result of the discrimination, the air conditioning control unit 8 advances the pre-boarding air conditioning control process to the process of step S19. On the other hand, if the radio wave has been received, the air conditioning control unit 8 advances the pre-boarding air conditioning control process to the process of step S6.

  In the process of step S6, the air conditioning control unit 8 calculates an elapsed time t after receiving the radio wave. Thereby, the process in step S6 is completed, and the pre-boarding air conditioning control process proceeds to the process in step S7.

  In the process of step S <b> 7, the air conditioning control unit 8 determines whether or not an occupant has boarded the vehicle via the occupant boarding determination unit 10. As a result of the determination, if the occupant is not in the vehicle, the air conditioning control unit 8 advances the pre-boarding air conditioning control process to the process of step S11. On the other hand, if the occupant has boarded the vehicle, the air conditioning control unit 8 advances the pre-boarding air conditioning control process to the process of step S8.

  In the process of step S <b> 8, the air conditioning control unit 8 detects and stores the time tb when the occupant has boarded the vehicle via the boarding time detection device 14. Thereby, the process of step S8 is completed and the air-conditioning control process before boarding proceeds to the process of step S9.

  In the process of step S9, the air conditioning control unit 8 calculates an elapsed time ts (= tb−ta) from when the radio wave is received from the air conditioning remote control unit 9 until the occupant gets into the vehicle. Thereby, the process of step S9 is completed and the air-conditioning control process before boarding proceeds to the process of step S10.

  In the process of step S10, the air conditioning control unit 8 performs statistical processing on the elapsed time ts calculated in the process of step S9 together with past data, thereby receiving the radio wave from the air conditioning remote control unit 9, and then the occupant The time until boarding the vehicle is predicted and set as the predicted time ts. Details of this elapsed time prediction process will be described later with reference to the flowchart shown in FIG. Thereby, the process of step S10 is completed and a series of pre-boarding air-conditioning control processes are completed.

  In the process of step S <b> 11, the air conditioning control unit 8 calculates the target driving force of the compressor 3. Thereby, the process of step S11 is completed and the air-conditioning control process before boarding proceeds to the process of step S12.

  In the process of step S12, the air conditioning control unit 8 calculates a thermal environment target value in the passenger compartment. Thereby, the process of step S12 is completed and the air-conditioning control process before boarding proceeds to the process of step S13.

  In the process of step S13, the air conditioning control unit 8 detects the current thermal environment of the vehicle via the thermal load detection unit 7, and the detected thermal environment satisfies the thermal environment target value calculated by the process of step S12. It is determined whether or not. As a result of the determination, if the thermal environment target value is satisfied, the air conditioning control unit 8 controls the stop of the compressor 3 through the compressor driving unit 4 as a process of step S14, thereby controlling the energy storage amount of the energy storage device 12. After reducing the reduction amount, the pre-boarding air conditioning control process proceeds to the process of step S19. On the other hand, if the thermal environment target value is satisfied, the air conditioning control unit 8 advances the pre-boarding air conditioning control process to the process of step S15.

  In the process of step S15, the air conditioning control unit 8 detects the energy storage amount (battery storage amount) of the energy storage device 12 via the energy storage amount detection device 13, and the detected energy storage amount and the first predetermined value. And a magnitude relation between the second predetermined value (<first predetermined value). As a result of the determination, if the energy storage amount is less than the second predetermined value, the air conditioning control unit 8 determines that the energy amount sufficient to drive or start the vehicle is insufficient, and performs the process of step S14. After the execution, the pre-boarding air conditioning control process proceeds to the process of step S19.

  On the other hand, if the energy storage amount is less than the first predetermined value and greater than or equal to the second predetermined value, the air conditioning control unit 8 sets the compressor 3 to the predetermined value via the compressor driving unit 4 as a process of step S16. After driving and controlling with less power consumption, the pre-boarding air conditioning control process proceeds to the process of step S19. On the other hand, if the energy storage amount is greater than or equal to the first predetermined value, the air conditioning control unit 8 advances the pre-boarding air conditioning control process to the process of step S17.

  In the process of step S17, the air conditioning control unit 8 determines whether or not the elapsed time t calculated by the process of step S6 is equal to or longer than the predicted time ts predicted by the process of step S10. As a result of the determination, if the elapsed time t is equal to or longer than the predicted time ts, the air conditioning control unit 8 determines that the occupant has not boarded the vehicle by the predicted time, and reduces the decrease in the energy storage amount of the energy storage device 12. Therefore, the pre-boarding air conditioning control process proceeds to the process of step S16. On the other hand, if the elapsed time t is less than the predicted time ts, the air conditioning control unit 8 determines that there is a sufficient amount of stored electricity that can be used for air conditioning, and the predetermined value is obtained via the compressor driving unit 4 as a process in step S18. After the compressor 3 is driven with the above power, the vehicle interior is controlled to a predetermined thermal environment in a short time, and then the pre-boarding air conditioning control process proceeds to the process of step S19.

  In the process of step S19, the air conditioning control unit 8 executes a normal air conditioning control process. The details of the normal air conditioning control process will be described later with reference to the flowchart shown in FIG. Thereby, the process of step S19 is completed and a series of pre-boarding air-conditioning control processes are completed.

[Elapsed time prediction processing]
Next, with reference to the flowchart shown in FIG. 4, operation | movement of the vehicle air conditioner at the time of performing the elapsed time prediction process of step S10 is demonstrated in detail.

  The flowchart shown in FIG. 4 starts at the timing when the process of step S9 is completed, and the elapsed time prediction process proceeds to the process of step S21.

  In the process of step S21, the air conditioning control unit 8 reads past data of the elapsed time ts from when the radio wave is received from the air conditioning remote control unit 9 until the passenger gets on the vehicle. Thereby, the process of step S21 is completed and the elapsed time prediction process proceeds to the process of step S21.

  In the process of step S22, the air conditioning control unit 8 calculates the average value and standard deviation of the past elapsed time ts, and calculates the sum of the calculated average value and standard deviation as the predicted time ts. The reason for adding the standard deviation to the average value is that if the average value is the predicted time ts, the occupant will not board the vehicle by the predicted time ts with a probability of approximately 50%. The estimated time ts is estimated longer by adding. In addition, since the standard deviation becomes larger as the variation in time until the occupant gets on is greater, the occupant will get on by the predicted time ts with a higher probability. In this case, the compressor 3 is driven with a power of a predetermined value or more. Therefore, the comfort in the passenger compartment can be further improved. Thereby, the process of step S22 is completed and the elapsed time prediction process proceeds to the process of step S23.

  In the process of step S23, the air conditioning control unit 8 determines whether or not the predicted time ts calculated by the process of step S22 is 180 seconds or longer. As a result of the determination, if the predicted time ts is 180 seconds or longer, the air conditioning control unit 8 sets and stores the predicted time ts as 180 seconds as the process of step S24, and then ends the series of elapsed time prediction processes. Thereby, it can suppress using much energy by setting prediction time ts long. On the other hand, if the predicted time is less than 180 seconds, the air conditioning control unit 8 advances the elapsed time predicting process to the process of step S25.

  In the process of step S25, the air conditioning control unit 8 determines whether or not the predicted time ts calculated by the process of step S22 is 30 seconds or more. As a result of the determination, if the predicted time ts is 30 seconds or more, the air conditioning control unit 8 performs setting for using the predicted time ts calculated by the process of step S22 in the subsequent processes, and then a series of elapsed time predicting processes. Exit. On the other hand, if the predicted time is less than 30 seconds, the air conditioning control unit 8 sets and stores the predicted time ts as 30 seconds as the process of step S26, and then ends the series of elapsed time predicting processes. Thereby, by setting the prediction time ts short, it is possible to suppress the ability of the air conditioner 6 from being reduced or stopped before the air conditioner 6 is sufficiently operated.

[Air conditioning control processing]
Next, with reference to the flowchart shown in FIG. 5, operation | movement of the vehicle air conditioner 1 at the time of performing the control process of step S19 is demonstrated in detail. The flowchart shown in FIG. 5 is started at the timing when it is determined that the radio wave from the air conditioning remote control unit 9 is not received in the process of step S5, or the processes of steps S14, 16, and 18 are completed. Advances to step S31.

  In the process of step S <b> 31, the air conditioning control unit 8 detects the vehicle room temperature via the thermal load detection unit 7. Thereby, the process of step S31 is completed and an air-conditioning control process progresses to the process of step S32.

  In the process of step S32, the air conditioning control unit 8 calculates a difference value T between the vehicle room temperature detected by the process of step S31 and 25 ° C. When the difference value T is −9 ° C. or less, the air conditioning control unit 8 advances the air conditioning control process to the process of step S33. On the other hand, when the difference value T is −9 ° C. or more and 8 ° C. or less, the air conditioning control unit 8 advances the air conditioning control process to the process of step S34. When the difference value T is 8 ° C. or higher, the air conditioning control unit 8 advances the air conditioning control process to the process of step S35.

  In step S33, the air conditioning control unit 8 determines that heating is necessary, and selects a heat pump cycle. A heat pump cycle is a refrigeration cycle that converts the motive power when driving the compressor 3 into the amount of heat that heats the air, or the compressor 3 is driven to pump heat from the outside air with a low-temperature refrigerant and convert it into the amount of heat that heats the air. It means the refrigeration cycle to be made. Thereby, the process of step S33 is completed and the air conditioning control process proceeds to the process of step S36.

  In the process of step S <b> 34, the air conditioning control unit 8 stops driving the compressor 3 via the compressor driving unit 4. In this case, the air conditioner 6 may be completely stopped, or the air conditioning air may be simply distributed without cooling or heating in order to reduce the temperature distribution difference in the passenger compartment. Thereby, the process of step S34 is completed and the air conditioning control process proceeds to the process of step S36.

  In the process of step S35, the air conditioning control unit 8 determines that cooling is necessary, and selects a heat pump cycle or a cooler cycle. In the heat pump cycle or the cooler cycle, the occupant operates the air conditioning remote control unit 9 to detect the vehicle room temperature when the air conditioner 6 is activated, and sets the target vehicle room temperature according to the detected vehicle room temperature. This is because when the target vehicle room temperature deviates from around 25 ° C., which is a comfortable temperature, it is necessary to operate the compressor 3 with a large amount of energy in order to bring the vehicle room temperature close to 25 ° C. This is because there is a possibility of greatly exceeding the energy storage amount. In addition, for example, during the heat pump cycle, the target vehicle room temperature is set lower as the outside air temperature is lower because the passenger comfort is obtained even at a lower vehicle room temperature as the outside air temperature is lower. Further, during the cooler cycle, the target vehicle room temperature increases as the initial vehicle room temperature increases. However, if the vehicle room temperature further increases, the target vehicle room temperature must be lowered before comfort can be obtained. This is a non-monotonous control line because sweating of the occupant suddenly occurs when the vehicle room temperature exceeds around 42 ° C (when the skin temperature of the occupant exceeds 33 ° C, sweating occurs). The calculated target vehicle room temperature is used as a vehicle interior thermal environment target value. Thereby, the process of step S35 is completed and an air-conditioning control process progresses to the process of step S36.

  In the process of step S36, the air conditioning control unit 8 detects the outside air temperature and the room temperature as the suction port control, and inhales the air that is close to 25 ° C. out of the outside air and the passenger compartment air based on the detection result. With this suction port control, the amount of heating heat or cooling heat of the intake air can be further reduced, and power consumption can be reduced. Thereby, the process of step S36 is completed and an air-conditioning control process progresses to the process of step S37.

  In the process of step S <b> 37, the air conditioning control unit 8 controls the state of the air mix door 26. Specifically, the air conditioning control unit 8 sets the air mix door 26 to the maximum heating position during heating. On the other hand, during cooling, the maximum cooling position is set. Thereby, the process of step S37 is completed and the air conditioning control process proceeds to the process of step S38.

  In the process of step S <b> 38, the air conditioning control unit 8 controls the state of the outlet selection door 27. Specifically, at the time of heating, the air conditioning control unit 8 includes the air distribution to the defroster in order to prevent the occurrence of fogging of the window, and controls the air outlet selection door 27 to distribute the air to the feet. On the other hand, at the time of cooling, the air-conditioning control unit 8 controls the air outlet selection door 27 so as to effectively cool the seat that is heated by the sun and is heated by the sun. Thereby, the process of step S39 is completed and the air conditioning control process proceeds to the process of step S39.

  In the process of step S <b> 39, the air conditioning control unit 8 controls the temperature of the air conditioning sheet 16. Thereby, the process of step S39 is completed and a series of air-conditioning control processes are complete | finished.

〔Concrete example〕
Next, several specific examples of the pre-boarding air conditioning control process according to the first embodiment of the present invention will be described with reference to FIGS.

  In the example shown in FIG. 6, when a radio wave is received from the air conditioning remote control unit 9 (time t = 0), the vehicle room temperature is equal to or higher than the target vehicle room temperature (see FIG. 6B), and the battery storage amount is stored. Since the amount exceeds the allowable value (see FIG. 6 (d)), the vehicle room temperature is rapidly brought close to the target vehicle room temperature by driving the compressor 3 at a maximum speed of about 7000 rpm as shown in FIG. 6 (a). Let The vehicle room temperature reaches the target vehicle room temperature when the elapsed time t is about 2.3 minutes after receiving the radio wave (time t = t1), and the battery charge amount at this time is above the allowable value. The number is reduced to about 2000 rpm to reduce the power consumption of the battery and substantially maintain the vehicle room temperature. In this example, the room temperature rises slightly from the elapsed time t1 to the elapsed time t2 (about 4.7 minutes), but the vehicle interior parts such as the seat and the door / trim are cooled by the cooled vehicle interior air. Therefore, the temperature is lowered even when the room temperature is slightly raised, and the comfort of the occupant is almost constant during the period when the rotation speed of the compressor 3 is lowered. Next, at the time of elapsed time T2, the battery charge amount becomes equal to or less than a predetermined allowable value, and the driving of the compressor 3 is stopped. Along with this, the room temperature rises more greatly. By controlling in this way, the vehicle room temperature can be brought close to the target vehicle room temperature rapidly, and energy required for starting the vehicle can be secured.

  In the example shown in FIG. 7, when the battery storage amount becomes equal to or less than a predetermined allowable value at the time before the vehicle room temperature reaches the target vehicle room temperature (elapsed time t = t3 (about 1.7 minutes)), the compressor 3 is driven. According to this control, the vehicle interior thermal environment can be brought closer to a more comfortable range, and the amount of charge of the battery can be secured.

  The example shown in FIG. 8 is a case where two set values are provided for the allowable storage value of the battery. When the allowable power storage amount (1) is larger than the allowable power storage value (2), when the battery power storage amount is the elapsed time t = t4 (about 1.7 minutes), the compressor rotational speed is increased from the maximum rotational speed of about 7000 rpm. Reduce to about 2000 rpm. When the battery storage amount decreases and reaches the allowable storage amount (2) (elapsed time t = t5), the compressor is stopped. As a result, the vehicle interior thermal environment can be brought closer to the comfortable range more rapidly, and the vehicle interior can be brought closer to the more comfortable range for a longer time. Further, by operating the air conditioning remote control unit 9 by the occupant, it is possible to increase the elapsed time from when the air conditioner 6 is activated until when the occupant gets on the vehicle, and it is possible to improve the convenience related to the occupant's boarding. .

  As is apparent from the above description, in the vehicle air conditioner according to the first embodiment of the present invention, when receiving radio waves from the air conditioning remote control unit 9, the air conditioning control unit 8 uses the energy storage amount detection device 13. It is determined whether or not the detected energy storage amount is equal to or greater than a first predetermined value, and when the detected energy storage amount is equal to or greater than a first predetermined value, the air conditioner 6 is driven with power greater than or equal to the predetermined value. Since the control is performed, the passenger compartment is rapidly air-conditioned between the time when the occupant performs remote control and the user gets into the vehicle, thereby improving the comfort of the passenger compartment when the occupant gets on the vehicle.

  Further, in the vehicle air conditioner according to the first embodiment of the present invention, the air conditioning control unit 8 calculates the target power of the air conditioner 6 based on the thermal load detected by the thermal load detection unit 7, thus saving energy. The energy storage amount of the device 12 can be used with more energy saving.

  Further, in the vehicle air conditioner according to the first embodiment of the present invention, the air conditioning control unit 8 calculates a target value of the thermal environment in the passenger compartment, has an energy storage amount larger than the first predetermined value, and When the thermal load detected by the thermal load detector 7 does not satisfy the calculated thermal environment target value, the air conditioner 6 is driven and controlled with a power greater than a predetermined value. In general, in a very unpleasant thermal environment such as when a vehicle is left in a place exposed to sunlight in summer, enormous energy is required to lower the vehicle room temperature to around 25 ° C., which is comfortable. In order to realize this, an energy storage device such as a very large battery may be mounted on the vehicle. However, in this case, the vehicle weight increases, which is disadvantageous in terms of vehicle acceleration and fuel consumption. For this reason, although the vehicle room temperature is higher than 25 ° C., the target room temperature is set as an acceptable temperature for passengers, and the energy consumption of the energy storage device is reduced by cooling to this temperature target. It is possible to ensure the comfort of the passenger in the least possible state. This control is limited to a case where a predetermined sufficient energy is stored in the energy storage device. This is because, for example, when the energy storage device does not store predetermined sufficient energy, the vehicle startup energy is insufficient.

  Further, in the vehicle air conditioner according to the first embodiment of the present invention, the air conditioning control unit 8 sets the second predetermined value smaller than the first predetermined value as the consumption target value of the energy storage amount of the energy storage device 12. When the energy storage amount is less than the first predetermined value and the thermal load detected by the thermal load detection unit 7 does not satisfy the set thermal environment target value, it is less than the set consumption target value Since the air conditioner 6 is driven and controlled by the consumed power, the starting energy of the vehicle can be stored in a predetermined amount or more.

  In the vehicle air conditioner according to the first embodiment of the present invention, the air conditioning control unit 8 refers to the detection results of the boarding time detection device 14 and the air conditioning means remote operation time detection device 15 and the air conditioning remote operation unit 9 Since the time from when the radio wave is transmitted until the occupant gets on the vehicle is calculated and stored, it is possible to estimate the time from when the occupant operates the air conditioning remote control unit 9 to get on the vehicle.

  In the vehicle air conditioner according to the first embodiment of the present invention, the air conditioning control unit 8 statistically processes the stored time, so that the occupant gets on the vehicle from the time when the air conditioning remote control unit 9 transmits the radio wave. Since the time to do this is predicted by statistical processing, both passenger comfort and energy saving can be achieved.

  Further, in the vehicle air conditioner according to the first embodiment of the present invention, the thermal environment target value set by the thermal load detected by the thermal load detection unit 7 is greater than the first predetermined value. Is not satisfied, the air-conditioning control unit 8 drives and controls the air-conditioning device 6 with power greater than or equal to a predetermined value until the elapsed time from the time when the air-conditioning remote control unit 9 transmits the radio wave reaches the predicted time. After the elapsed time from the time when the air conditioning remote control unit 9 transmits the radio wave reaches the predicted time, or when the energy storage amount becomes smaller than the first predetermined value, the air conditioner 6 is operated with power less than the predetermined value. Since it is characterized by driving control, it is possible to achieve both passenger comfort and energy saving while securing an energy storage amount required when starting the vehicle.

  Further, in the vehicle air conditioner according to the first embodiment of the present invention, the air conditioning control unit 8 is installed in the vehicle interior and exterior via the thermal load detection unit 7 for a predetermined time after the air conditioner 6 is activated. The air temperature is detected, and the detected air temperatures inside and outside the vehicle compartment are compared with the set target temperatures in the vehicle compartment. Of the air inside the vehicle compartment and outside the vehicle compartment, Since air is selectively introduced and controlled as conditioned air, and after a predetermined time, air in the passenger compartment is selectively introduced and controlled as conditioned air, the amount of energy required for air conditioning can be reduced.

  Further, in the vehicle air conditioner according to the first embodiment of the present invention, the air conditioning control unit 8 blows conditioned air to at least the window glass in front of the vehicle for a second predetermined time after the air conditioner 6 is activated. Because of the control, even in situations where window fogging is likely to occur, such as in winter, the window fogging can be reduced before the passenger gets on the vehicle, and the vehicle can be run immediately after the passenger rides.

  In the vehicle air conditioner according to the first embodiment of the present invention, when the air conditioning control unit 8 drives the air conditioner 6, the air conditioning seat 16 is also driven at the same time. The passenger comfort can also be improved.

[Second Embodiment]
The vehicle air conditioner according to the second embodiment of the present invention has the same configuration as the vehicle air conditioner according to the first embodiment, and the flow of the air conditioning control process before boarding is the first embodiment. It differs from that of a vehicle air conditioner. Therefore, in the following, the operation of the vehicle air conditioner (pre-ride air conditioning control process) when the start of air conditioning control is instructed from the air conditioning remote control unit 9 will be described with reference to FIG. The flowchart shown in FIG. 9 starts at the timing when the ignition switch of the vehicle is turned off, and the pre-boarding air conditioning control process proceeds to the process of step S41. Note that the processing from step S41 to step S54 has the same contents as the processing from step S1 to step S14, and therefore the description thereof will be omitted below, and only the processing after step S55 will be described.

  In the process of step S55, the air conditioning control unit 8 detects the energy storage amount (battery storage amount) of the energy storage device 12 via the energy storage amount detection device 13, and the detected energy storage amount and the first predetermined value. And a magnitude relation between the second predetermined value (<first predetermined value). As a result of the determination, if the energy storage amount is less than the second predetermined value, the air conditioning control unit 8 determines that the amount of energy sufficient to drive or start the vehicle is insufficient, and performs the process of step S54. After the execution, the pre-boarding air conditioning control process proceeds to the process of step S61. On the other hand, if the energy storage amount is less than the first predetermined value and greater than or equal to the second predetermined value, the air conditioning control unit 8 advances the pre-boarding air conditioning control process to the process of step S59. If the energy storage amount is equal to or greater than the first predetermined value, the air conditioning control unit 8 advances the pre-boarding air conditioning control process to the process of step S56.

  In the process of step S56, the air conditioning control unit 8 determines whether or not the elapsed time t calculated by the process of step S46 is equal to or longer than the predicted time ts predicted by the process of step S50. As a result of the determination, if the elapsed time t is equal to or longer than the predicted time ts, the air conditioning control unit 8 advances the pre-boarding air conditioning control process to the process of step S59. On the other hand, if the elapsed time t is not greater than or equal to the predicted time ts, the air conditioning control unit 8 advances the pre-boarding air conditioning control process to the process of step S57.

  In the process of step S57, the air conditioning control unit 8 determines whether or not the elapsed time t is equal to or longer than the maximum operating time tlimit. This maximum operating time limit is a vehicle when the occupant has started the air conditioner by operating the air conditioning remote control unit 9 but does not get on the vehicle after all. It is the time when the air conditioner operates to the maximum. As a result of the determination, if the elapsed time t is equal to or longer than the maximum operating time tlimit, the air conditioning control unit 8 advances the pre-boarding air conditioning control process to the process of step S54. On the other hand, if the elapsed time t is not equal to or longer than the maximum operating time tlimit, the air conditioning control unit 8 advances the pre-boarding air conditioning control process to the process of step S58.

  In the process of step S58, the air-conditioning control unit 8 determines that there is a sufficient amount of electricity that can be used for air-conditioning, and drives the compressor 3 with a power greater than or equal to a predetermined value via the compressor driving unit 4 to drive the vehicle in a short time. The room is controlled to a predetermined thermal environment. Thereby, the process of step S58 is completed, and the pre-boarding air conditioning control process proceeds to the process of step S61.

  In the process of step S59, the air conditioning control unit 8 determines whether or not the elapsed time t is equal to or longer than the maximum operating time tlimit. As a result of the determination, if the elapsed time t is equal to or longer than the maximum operating time tlimit, the air conditioning control unit 8 advances the pre-boarding air conditioning control process to the process of step S54. On the other hand, if the elapsed time t is not equal to or longer than the maximum operating time tlimit, the air conditioning control unit 8 advances the pre-boarding air conditioning control process to the process of step S60.

  In the process of step S60, the air conditioning control unit 8 controls the drive of the compressor 3 with the consumption power less than a predetermined value via the compressor driving unit 4. Thereby, the process of step S60 is completed, and the pre-boarding air conditioning control process proceeds to the process of step S60.

  In the process of step S61, the air conditioning control unit 8 executes a normal air conditioning control process shown in FIG. Thereby, the process of step S61 is completed and a series of pre-boarding air-conditioning control processes are completed.

〔Concrete example〕
Next, several specific examples of the pre-boarding air conditioning control process according to the second embodiment of the present invention will be described with reference to FIG.

  In the example shown in FIG. 10, the estimated time until the occupant gets on board is 3.5 minutes (elapsed time t = t6), and the maximum operating time is 5 minutes (elapsed time t = t7). If the elapsed time reaches 3.5 minutes of the estimated boarding time before the room temperature reaches the target room temperature, the compressor speed is reduced from about 7000 rpm to about 2000 rpm. Furthermore, the compressor is stopped when the elapsed time exceeds the maximum operating time of 5 minutes. By this control, the passenger compartment can be brought closer to a comfortable range more quickly until the occupant gets on the vehicle, and wasteful consumption of the battery charge can be reduced.

  As is clear from the above description, according to the air conditioning control process according to the second embodiment of the present invention, the air conditioning control unit 8 is configured such that the elapsed time from the time when the air conditioning remote control unit 9 transmits radio waves is the air conditioning device. Until the maximum operating time of 6 is reached, the air conditioner 6 is driven and controlled with power of a predetermined value or more, and the elapsed time from the time when the air conditioning remote control unit 9 transmits radio waves is the maximum operating time of the air conditioner 6 After reaching the time, the air conditioner 6 is driven and controlled with power less than or equal to a predetermined value, so that it is possible to achieve both passenger comfort and energy saving while ensuring the amount of energy storage required when starting the vehicle.

  As mentioned above, although the embodiment to which the invention made by the present inventor is applied has been described, the present invention is not limited by the description and the drawings that form part of the disclosure of the present invention according to this embodiment. That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

It is a block diagram which shows the structure of the vehicle air conditioner used as embodiment of this invention. It is a block diagram which shows the internal structure of the air conditioning apparatus shown in FIG. It is a flowchart figure which shows the flow of the boarding air-conditioning control process used as the 1st Embodiment of this invention. It is a flowchart figure which shows the flow of the elapsed time prediction process shown in FIG. It is a flowchart figure which shows the flow of the air-conditioning control process shown in FIG. It is a timing chart figure which shows a specific example of the boarding air-conditioning control process used as the 1st Embodiment of this invention. It is a timing chart figure which shows the other specific example of the boarding air-conditioning control process used as the 1st Embodiment of this invention. It is a timing chart figure which shows a specific example of the boarding air-conditioning control process used as the 1st Embodiment of this invention. It is a flowchart figure which shows the flow of the boarding air-conditioning control process used as the 2nd Embodiment of this invention. It is a timing chart figure which shows one specific example of the boarding air-conditioning control process used as the 2nd Embodiment of this invention.

Explanation of symbols

1: Vehicle air conditioner 2: Engine (engine)
3: Compressor 4: Compressor drive unit 5: Refrigeration cycle 6: Air conditioning device 7: Thermal load detection unit 8: Air conditioning control unit 9: Air conditioning remote control unit 10: Passenger boarding determination unit 11: Air conditioning pre-operation unit 12: Energy storage device 13: Energy storage amount detection device 14: Boarding time detection device 15: Air conditioning means remote operation time detection device 16: Air conditioning sheet

Claims (10)

An energy storage device (12) mounted on the vehicle;
An air conditioner (6) which is driven by at least energy stored in the energy storage device (12) and adjusts the temperature in the passenger compartment of the vehicle;
An air conditioning remote control unit (9) for transmitting a drive signal instructing driving of the air conditioner (6);
A thermal load detector (7) for detecting a thermal load applied to the vehicle;
An energy storage amount detector (13) for detecting an energy storage amount of the energy storage device (12);
When the drive signal is received from the air conditioning remote control unit (9), it is determined whether or not the energy storage amount detected by the energy storage amount detection unit (13) is greater than or equal to a first predetermined value. An air conditioning control unit (8) that drives and controls the air conditioner (6) with power greater than or equal to a predetermined value when the stored energy amount is greater than or equal to a first predetermined value ;
A boarding time detection unit (14) for detecting a time when an occupant gets on the vehicle, and a remote operation time detection unit (15) for detecting a time when the air conditioning remote control unit (9) transmits a drive signal, The air conditioning control unit (8) refers to the detection results of the boarding time detection unit (14) and the remote operation time detection unit (15), and the occupant enters the vehicle from the time when the air conditioning remote operation unit (9) transmits the drive signal. A vehicle air conditioner characterized in that it calculates and stores a time until it gets on.   The vehicle air conditioner according to claim 1, wherein the air conditioning controller (8) calculates a target power of the air conditioner (6) based on the thermal load detected by the thermal load detector (7). An air conditioner for a vehicle. The vehicle air conditioner according to claim 1, wherein the air conditioning control unit (8) sets a target value of a thermal environment in a passenger compartment, has an energy storage amount larger than the first predetermined value , and the When the thermal load detected by the thermal load detector (7) does not satisfy the set thermal environment target value, the air conditioner (6) is driven and controlled with a power greater than a predetermined value. Air conditioner. 4. The vehicle air conditioner according to claim 3, wherein the air conditioning control unit (8) sets a second predetermined value smaller than the first predetermined value to a consumption target value of the energy storage amount of the energy storage device (12). and sets as the first small energy storage amount than a predetermined value, and, if not satisfied thermal environment target value thermal load detected set by the thermal load detecting section (7), is set The vehicle air conditioner (6) is driven and controlled with power less than the consumption target value. 2. The vehicle air conditioner according to claim 1 , wherein the air conditioning control unit (8) performs statistical processing on the stored time, thereby occupant from the time when the air conditioning remote control unit (9) transmits a drive signal. A vehicle air conditioner that predicts the time until the vehicle gets on the vehicle. 6. The vehicle air conditioner according to claim 5 , wherein the energy storage amount is larger than the first predetermined value , and the thermal environment target set by the thermal load detected by the thermal load detector (7) is set. When the value is not satisfied, the air conditioning control unit (8) is equal to or greater than a predetermined value until the elapsed time from the time when the air conditioning remote control unit (9) transmits the drive signal reaches the predicted time. The air conditioner (6) is driven and controlled by power, and the elapsed time from the time when the air conditioning remote control unit (9) transmitted the drive signal has reached the predicted time, or from the first predetermined value When the energy storage amount decreases, the vehicle air conditioner (6) is driven and controlled with power less than the predetermined value. The vehicle air conditioner according to claim 6 , wherein the air conditioning control unit (8) is configured such that an elapsed time from a time when the air conditioning remote control unit (9) transmits a drive signal is a maximum operating time of the air conditioner (6). The air conditioner (6) is driven and controlled with power greater than or equal to a predetermined value until it reaches the maximum value, and the elapsed time from the time when the air conditioning remote control unit (9) transmits the drive signal is the maximum of the air conditioner (6). The vehicle air conditioner is characterized in that after the operation time has been reached, the air conditioner (6) is driven and controlled with power less than a predetermined value. The vehicle air conditioner according to any one of claims 1 to 7 , wherein the air conditioning control unit (8) is configured to perform the thermal load for a predetermined time after the air conditioner (6) is activated. The temperature of the air inside and outside the vehicle compartment is detected via the detection unit (7), and the detected air temperature outside the vehicle compartment and outside the vehicle compartment is compared with the set target temperature in the vehicle interior and outside the vehicle compartment. A vehicle air conditioner that selectively controls the introduction of air that is closer to the target temperature in the passenger compartment as conditioned air, and that selectively controls the air in the passenger compartment as conditioned air after the predetermined time. . 9. The vehicle air conditioner according to claim 8 , wherein the air conditioning controller (8) blows conditioned air to at least a window glass in front of the vehicle for a second predetermined time after the air conditioner (6) is activated. A vehicle air conditioner that is controlled. The vehicular air conditioner according to any one of claims 1 to 9 , further comprising a contact part that contacts an occupant capable of adjusting temperature, wherein the air conditioning control unit (8) is an air conditioner (6). The vehicle air conditioner is characterized in that the contact parts are also driven at the same time.

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