Air-conditioning control device for vehicle

Abstract

To provide an air-conditioning control device for a vehicle which optimizes a preset temperature and performs appropriate air-conditioning control according to outside / inside environment of the vehicle to improve comfortability of a crewman.SOLUTION: An air-conditioning control device for a vehicle controls an air-conditioning device for a vehicle mounted on the vehicle to supply a cabin with temperature-controlled air based on a preset temperature. The air-conditioning control device for the vehicle controls, when recommended setting temperature according to outdoor temperature defined in advance is stored and an outdoor temperature and a setting temperature are stored at the time of turning off an ignition switch of the vehicle, and controls, when difference between current outdoor temperature and the outdoor temperature at the time of turning off is less than a specified value at the time of turning on the ignition switch, the air-conditioning device for the vehicle based on the setting temperature at the time of turning off. The air-conditioning control device for the vehicle controls, when the difference between the current outdoor temperature and the outdoor temperature at the time of turning off is the specified value or more, the air-conditioning device based on the recommended setting temperature according to the current outdoor temperature.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a vehicle air conditioning control device that is mounted on a vehicle and controls the air conditioning of the vehicle interior. [Background technology]

[0002] In a vehicle air conditioning system, the temperature and volume of air supplied to the vehicle interior are typically adjusted based on the temperature (set temperature) set automatically or by the occupant, while referring to information indicating the environment inside and outside the vehicle, such as the outside air temperature and the interior temperature, i.e., air conditioning control is performed. As an example of such a vehicle air conditioner, for example, Patent Document 1 discloses a vehicle air conditioning control device that selects the outside air temperature to be referenced during air conditioning control depending on the time elapsed since the previous engine stop (ignition switch off). Specifically, when the engine is started (ignition switch is turned on), this vehicle air conditioning control device uses the outside air temperature stored when the previous engine stop is last performed if the time elapsed since the previous engine stop is less than a predetermined value, and uses the outside air temperature measured at that time if the time elapsed is equal to or greater than the predetermined value. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-030376 Summary of the Invention [Problem to be solved by the invention]

[0004] In such vehicle air conditioning systems, for example, when the vehicle's ignition switch is turned on, the system operates, i.e., starts air conditioning control, based on the set temperature stored the last time the ignition switch was turned off. However, when the vehicle's ignition switch is turned on, for example, if a long time has passed since the last time the ignition switch was turned off and the environment inside and outside the vehicle has changed, air conditioning control based on the set temperature at the last time the ignition switch was turned off may not be appropriate, resulting in a loss of comfort for the occupants. Furthermore, because the perceived temperature and ideal interior temperature differ for each occupant, air conditioning control based on the set temperature at the last time the ignition switch was turned off may not necessarily be appropriate for the occupants. Therefore, it is desirable to optimize the set temperature and perform appropriate air conditioning control according to the environment inside and outside the vehicle.

[0005] The present invention addresses such a situation by optimizing the set temperature and controlling the air conditioning appropriately according to the environment inside and outside the vehicle, thereby improving the comfort of the occupants. [Means for solving the problem]

[0006] In order to solve such problems, the present invention has the following configuration. In other words, one aspect of the present invention provides a vehicle air conditioning control device that controls a vehicle air conditioning device installed in a vehicle and supplies air into the vehicle that has been temperature-adjusted based on a set temperature, and that stores a predetermined recommended set temperature according to the outside air temperature, and when the vehicle's ignition switch is off, stores the off-time outside air temperature and the off-time set temperature, and when the ignition switch is on, if the difference between the current outside air temperature and the off-time outside air temperature is less than a predetermined value, controls the vehicle air conditioning device based on the off-time set temperature, and if the difference between the current outside air temperature and the off-time outside air temperature is equal to or greater than a predetermined value, controls the vehicle air conditioning device based on the recommended set temperature according to the current outside air temperature. [Effects of the Invention]

[0007] A vehicle air conditioning control device having these characteristics can optimize the set temperature and perform appropriate air conditioning control according to the environment inside and outside the vehicle, thereby improving the comfort of passengers. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is an explanatory diagram showing a schematic configuration of a vehicle control system including a vehicle air conditioning control device according to an embodiment of the present invention; [Figure 2] 10 is an example of a graph showing the ideal vehicle interior temperature Tref according to the outside air temperature Tam for each occupant. [Figure 3] 10 is an example of a table showing the relationship between the outside air temperature Tam and the recommended set temperature Tset_ref according to the ideal interior temperature Tref. [Figure 4] 10 is a graph showing an example of the relationship between the current interior temperature Tr, the ideal interior temperature Tref, the deviation ΔTr, the recommended set temperature Tset_ref, and the correction value C. [Figure 5] 10 is a graph showing an example of the relationship between the current body surface temperature S of an occupant and the ideal body surface temperature Sref. [Figure 6] 1 is a flowchart showing a process flow for determining whether to use the set temperature Tset_OFF at the end of the previous operation or the recommended set temperature Tset_ref when determining the set temperature in an air conditioning control device for a vehicle according to an embodiment of the present invention. [Figure 7] 7 is a flowchart showing the process of step S114 in FIG. 6. DETAILED DESCRIPTION OF THE INVENTION

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same reference numerals in different drawings denote parts with the same functions, and duplicated descriptions in each drawing will be omitted as appropriate.

[0010] 1, a vehicle air conditioning control device (air conditioning control ECU 11) according to this embodiment functions as part of a vehicle control system 1 mounted on a vehicle 100. The vehicle control system 1 includes a plurality of sensors that acquire various information indicating the running state of the vehicle 100 and the internal and external states and environments of the vehicle 100, various devices necessary for the running of the vehicle 100, and a plurality of ECUs (Electronic Control Units) that control these sensors and devices.

[0011] 1 illustrates, among the multiple ECUs, air conditioning control ECU 11, ECU 21, and ECU 31 as vehicle air conditioning control devices, while omitting other ECUs. Also, among the multiple sensors and devices, an outside air temperature sensor 41 that detects the outside air temperature of the vehicle 100, an inside air temperature sensor 42 that detects the inside air temperature of the vehicle 100, and an inside camera 43 that captures images of the inside of the vehicle are illustrated, while other sensors and devices are omitted. In this embodiment, detailed explanations and illustrations of ECUs, sensors, and electronic devices that are not involved in the function of the vehicle air conditioning control device will be omitted even though they are included in the vehicle control system 1.

[0012] The sensors, devices, and ECUs are interconnected so as to be able to communicate with each other via an in-vehicle network 3 such as a Controller Area Network (CAN) or a Local Interconnect Network (LIN) and a central gateway (CGW) 4 as a relay device.

[0013] In the vehicle control system 1, information acquired by each sensor is output to the in-vehicle network 3, and information indicating the operating state of the equipment to be controlled (hereinafter referred to as the controlled equipment) is output from each ECU to the in-vehicle network 3. Furthermore, each ECU controls the operation of the controlled equipment based on information acquired from each sensor and other ECUs via the in-vehicle network 3.

[0014] Each ECU includes a processor or electric circuit (hereinafter referred to as a processor, etc.), such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit), and executes various processes using the processor, etc. Each ECU also includes a volatile storage element, such as a RAM (Random Access Memory) that temporarily processes data used by the processor, etc., and a non-volatile storage element, such as a ROM (Read Only Memory) that stores programs executed by the processor, etc. Note that some or all of the operations executed by each ECU can also be implemented by hardware, such as an ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), or GPU (Graphics Processing Unit).

[0015] 1, the air conditioning control ECU 11 is connected to the vehicle air conditioner 10 and performs air conditioning control based on a set temperature for the vehicle air conditioner 10. That is, by controlling the vehicle air conditioner 10, the air conditioning control ECU 11 adjusts the temperature of the air taken into the vehicle air conditioner 10 and adjusts the amount of temperature-adjusted air supplied (airflow rate) to the vehicle interior so that the interior of the vehicle 100 is maintained at the set temperature. The air conditioning control ECU 11 acquires the outside air temperature Tam detected by the outside air temperature sensor 41, the inside vehicle temperature Tr detected by the inside vehicle temperature sensor 42, and the image data of the inside of the vehicle captured by the inside vehicle camera 43 via the in-vehicle network 3, and performs air conditioning control while referring to these.

[0016] The air conditioning control ECU 11 includes a CPU 111 , a ROM 112 , and a RAM 113 , and the CPU 111 executes various processes based on programs stored in the ROM 112 . The ROM 112 provided as a non-volatile storage element stores a program for controlling the vehicle air conditioner 10 and various data required to execute this program.

[0017] As various data, ROM 112 stores data to be referenced when automatically determining the set temperature Tset used for air conditioning control, such as the ideal interior temperature Tref for each occupant according to the outside air temperature Tam and a recommended set temperature Tset_ref predetermined according to the outside air temperature Tam. The data stored in the ROM 112 will be described below.

[0018] (Data stored in ROM112) The following describes data that is pre-stored in the ROM 112 and that the air conditioning control ECU 11 uses when automatically determining the set temperature Tset of the vehicle air conditioner 10. In this embodiment, examples of such data stored in the ROM 112 include at least (1) data for each occupant on the ideal interior temperature Tref according to the outside air temperature, and (2) data indicating the set temperature according to the outside air temperature Tam and the ideal interior temperature Tref.

[0019] (1) Data for each occupant on ideal interior temperature Tref according to outside temperature Tam The air conditioning control ECU 11 stores in advance in the ROM 112 data indicating the ideal interior temperature Tref corresponding to the outside air temperature Tam for each occupant in the vehicle 100. The ideal interior temperature Tref indicates the ideal temperature inside the vehicle that is expected to maintain comfort for each occupant. Even if the outside air temperature Tam is the same, the thermal sensation and sensible temperature differ for each occupant, and therefore the ideal interior temperature Tref also differs for each occupant. Therefore, by utilizing data for each occupant that corresponds the outside air temperature Tam to the ideal interior temperature Tref, it is possible to determine the optimal set temperature Tset for each occupant.

[0020] Fig. 2 shows an example of a graph showing the ideal interior temperature Tref for each occupant according to the outside air temperature Tam. The example in Fig. 2 shows the relationship between the outside air temperature Tam and the ideal interior temperature Tref for each of three occupants D1, D2, and D3. In Fig. 2, the ideal interior temperature data for occupant D1 is shown by a white circle, the ideal interior temperature data for occupant D2 is shown by a white square, and the ideal interior temperature data for occupant D3 is shown by a white diamond.

[0021] 2, for example, when the outside air temperature Tam is 10° C., it can be seen that the ideal inside-vehicle temperature Tref for occupant D1 is 26° C., the ideal inside-vehicle temperature Tref for occupant D2 is 28° C., and the ideal inside-vehicle temperature Tref for occupant D3 is −30° C. In this way, by referring to the graph in FIG. 2, it is possible to grasp the ideal inside-vehicle temperature Tref corresponding to the outside air temperature Tam for each occupant.

[0022] Data indicating the ideal vehicle interior temperature Tref corresponding to the outside air temperature Tam for each occupant can be obtained, for example, by performing calculations based on at least one of the set temperatures Tset set by occupants D1, D2, and D3 when they use the vehicle air conditioning system 10 in the vehicle 100, or manual temperature adjustment operations.

[0023] (2) Data showing the recommended set temperature Tset_ref according to the outside air temperature Tam and the ideal interior temperature Tref The air conditioning control ECU 11 can control the air conditioning of the vehicle air conditioner 10 by using the ideal interior temperature Tref of the occupant as the set temperature Tset. However, by increasing the set temperature Tset as the outside air temperature Tam decreases and decreasing the set temperature Tset as the outside air temperature Tam increases, the interior temperature of the vehicle can reach the ideal interior temperature Tref more quickly, thereby improving the comfort of the occupant. Therefore, the air conditioning control ECU 11 stores in advance in the ROM 112 data indicating a recommended set temperature Tset_ref corresponding to the outside air temperature Tam and the ideal interior temperature Tref.

[0024] Fig. 3 shows an example of a table showing the relationship between the recommended set temperature Tset_ref according to the outside air temperature Tam and the ideal interior temperature Tref. In the example of Fig. 3, when the outside air temperature Tam is 5°C, it is preferable to set the recommended set temperature Tset_ref to 25.5°C if the ideal interior temperature Tref is 25°C, and to set the recommended set temperature Tset_ref to 28.5°C if the ideal interior temperature Tref is 28°C.

[0025] The recommended set temperature Tset_ref according to such outside air temperature Tam and ideal interior temperature Tref is determined, for example, based on the specifications and performance of the vehicle air conditioning system 10, the interior volume of the vehicle 100, and the area of ​​the windows provided in the vehicle 100, and is preferably calculated in advance and stored in ROM 112.

[0026] The RAM 113, which is provided as a volatile storage element, is used as a working area when the CPU 111 executes various processes. Therefore, the outside air temperature Tam, the inside temperature Tr, the captured image data of the inside of the vehicle, and the like, acquired via the in-vehicle network 3, are temporarily stored in the RAM 113 as needed.

[0027] The CPU 111 controls the vehicle air conditioner 10 by loading a program stored in the ROM 112 into a memory such as a RAM 113 and executing the program. Specifically, the CPU 111 controls the vehicle air conditioner 10 as follows. When the operation of the vehicle air conditioner 10 is terminated (including when the operation of the vehicle air conditioner 10 is terminated simultaneously with the ignition switch of the vehicle 100 being turned off), the CPU 111 temporarily stores the outside air temperature Tam_OFF at the time of termination of operation and the setting value for the vehicle air conditioner 10 in the ROM 112 or the RAM 113.

[0028] The set values ​​for the vehicle air conditioner 10 at the end of operation include, for example, the set temperature Tset_OFF, the temperature of the air blown into the vehicle compartment (target outlet temperature TAO), and the air blow rate, and it can be determined as appropriate which set values ​​to store. Here, the CPU 111 stores at least the set temperature Tset_OFF as the set value for the vehicle air conditioner 10.

[0029] When the CPU 111 receives an instruction to start operation of the vehicle air conditioner 10 (including when the CPU 111 receives an instruction to start operation of the vehicle air conditioner 10 simultaneously with turning on the ignition switch of the vehicle 100), it determines the set temperature Tset at the start of operation.

[0030] That is, when an operation start instruction is input to the vehicle air conditioner 10, the CPU 111 acquires at least temperature information from among the state information indicating the internal and external states of the vehicle 100, and determines the set temperature Tset at the start of operation based on the temperature information. Specifically, the CPU 111 acquires, as the temperature information from the above-mentioned state information, the outside air temperature Tam_OFF stored at the time of the end of the previous operation of the vehicle air conditioner 10, and also acquires the current outside air temperature Tam detected by the outside air temperature sensor 41 via the in-vehicle network 3.

[0031] When the outside air temperature Tam_OFF and the outside air temperature Tam can be considered to be the same, that is, when the difference ΔTam between the outside air temperature Tam_OFF and the outside air temperature Tam is less than a predetermined value Tdif, the vehicle air conditioner 10 is controlled based on the set temperature Tset_OFF stored at the end of the previous operation. On the other hand, when the outside air temperature Tam_OFF and the outside air temperature Tam cannot be considered to be the same, that is, when the difference ΔTam between the outside air temperature Tam_OFF and the outside air temperature Tam is equal to or greater than a predetermined value Tdif, the vehicle air conditioner 10 is controlled based on the recommended set temperature Tset_ref corresponding to the current outside air temperature Tam.

[0032] When determining whether to use the stored set temperature Tset_OFF as the set temperature Tset at the start of operation, the temperature information may not only be referenced to the current outside air temperature Tam and the stored outside air temperature Tam_OFF, but also to the inside air temperature Tr and the state of the occupants.

[0033] In addition, the CPU 111 acquires at least occupant information indicating the state of the occupants and interior temperature information from the state information indicating the internal and external states of the vehicle 100, and if it is necessary to correct the recommended set temperature Tset_ref, corrects the recommended set temperature Tset_ref based on the state information. The state information includes, for example, image data of the interior of the vehicle captured by the in-vehicle camera 43 and the interior temperature Tr detected by the interior temperature sensor 42. The CPU 111 calculates a corrected recommended set temperature Tset_co by correcting the recommended set temperature Tset_ref based on the body surface temperature of the occupant acquired from the image data and the interior temperature Tr, and controls the vehicle air conditioner 10 based on the corrected recommended set temperature Tset_co.

[0034] Whether or not the recommended set temperature Tset_ref needs to be corrected is determined based on, for example, the degree of deviation ΔTr between the current vehicle interior temperature Tr and the recommended set temperature Tset_ref (or ideal vehicle interior temperature Tref). The larger the deviation ΔTr, the longer it takes for the vehicle interior temperature to reach the recommended set temperature Tset_ref, which may impair passenger comfort. Therefore, the CPU 111 improves passenger comfort by correcting the recommended set temperature Tset_ref based on the deviation ΔTr.

[0035] FIG. 4 is a graph showing an example of the relationship between the current interior temperature Tr, the ideal interior temperature Tref, the deviation ΔTr, the recommended set temperature Tset_ref, and the correction value Ct. As shown in FIG. 4, the larger the deviation ΔTr, the larger the correction value Ct. Therefore, when the deviation ΔTr is equal to or greater than a predetermined value, the CPU 111 corrects the recommended set temperature Tset_ref according to the correction value Ct obtained based on the deviation ΔTr to calculate the corrected recommended set temperature Tset_co. Note that when the deviation ΔTr is less than the predetermined value, it is determined that there is no need to correct the recommended set temperature Tset_ref based on the deviation ΔTr.

[0036] Furthermore, whether or not the recommended set temperature Tset_ref needs to be corrected can also be determined based on, for example, the occupant's body surface temperature S, in addition to the deviation ΔTr. That is, whether or not the recommended set temperature Tset_ref needs to be corrected is determined based on the degree of deviation ΔS between the occupant's current body surface temperature S and the ideal body surface temperature Sref.

[0037] 5 shows an example of the relationship between the occupant's current body surface temperature S and the ideal body surface temperature Sref. When the deviation ΔS is equal to or greater than a predetermined value, the CPU 111 corrects the recommended set temperature Tset_ref in accordance with a correction value Cs obtained based on the deviation ΔS to calculate the corrected recommended set temperature Tset_co. When the deviation ΔS is less than the predetermined value, it is determined that there is no need to correct the recommended set temperature Tset_ref based on the deviation ΔS.

[0038] It is also possible to determine whether or not the recommended set temperature Tset_ref needs to be corrected using both the deviation ΔTr and the deviation ΔS. In this case, the recommended set temperature Tset_ref is corrected using the correction values ​​Ct and Cs. If the correction values ​​Ct and Cs cancel each other out, it is determined that the recommended set temperature Tset_ref does not need to be corrected.

[0039] The processing in the air conditioning control ECU 11 configured as above will be described with reference to the flowcharts of Figures 6 and 7. Figure 6 shows the flow of processing for determining whether to use the set temperature Tset_OFF at the end of the previous operation or the recommended set temperature Tset_ref when determining the set temperature. Figure 7 shows the flow of processing for calculating the set temperature Tset based on the recommended set temperature Tset_ref in step S114 of the flowchart of Figure 6.

[0040] 6, when the ignition switch of the vehicle 100 is turned on and an instruction to start operation of the vehicle air conditioner 10 is received, the air conditioning control ECU 11 starts up and acquires temperature information (step S111). Here, the air conditioning control ECU 11 acquires the current outside air temperature Tam as temperature information via the in-vehicle network 3, and also reads out the outside air temperature Tam_OFF stored at the end of the previous operation.

[0041] The air conditioning control ECU 11 calculates the difference ΔTam between the outside air temperature Tam_OFF and the outside air temperature Tam (step S112), and determines whether the difference ΔTam is equal to or greater than a predetermined value Tdif (step S113). If the determination is that the difference ΔTam between the outside air temperature Tam_OFF and the outside air temperature Tam is equal to or greater than the predetermined value Tdif (YES in step S113), the air conditioning control ECU 11 performs a calculation process for the set temperature Tset based on the recommended set temperature Tset_ref corresponding to the current outside air temperature Tam (step S114). Note that when proceeding to the process of step S114, the air conditioning control ECU 11 discards (marks as unused data or deletes from memory) the set temperature Tset_OFF stored at the end of the previous operation.

[0042] On the other hand, if the difference ΔTam is less than the predetermined value Tdif (NO in step S113), the set temperature Tset_OFF stored at the end of the previous operation is determined as the set temperature Tset (step S116). Once the set temperature Tset is determined in step S114 or step S116, air conditioning control for the vehicle air conditioner 10 is started at the determined set temperature Tset (step S115).

[0043] Next, the process of calculating the set temperature Tset based on the recommended set temperature Tset_ref according to the current outside air temperature Tam in step S114 of FIG. 6 will be described with reference to the flowchart of FIG.

[0044] 7, the air conditioning control ECU 11 acquires occupant information indicating the state of the occupant and interior temperature information from among state information indicating the state of the interior and exterior of the vehicle 100 (step S211). When an occupant of the vehicle 100 is identified based on the occupant information acquired in step S211, the air conditioning control ECU 11 reads out an ideal interior temperature Tref for the occupant corresponding to the current outside air temperature Tam acquired in step S111 of FIG. 6 (step S212). Then, the air conditioning control ECU 11 reads out a recommended set temperature Tset_ref determined by the ideal interior temperature Tref and the current outside air temperature Tam (step S213).

[0045] Next, the air conditioning control ECU 11 determines whether the read recommended set temperature Tset_ref needs to be corrected (step S214). As described above, the need for correction can be determined based on at least one of the degree of deviation ΔTr between the current vehicle interior temperature Tr and the recommended set temperature Tset_ref (or the ideal vehicle interior temperature Tref) and the degree of deviation ΔS between the current body surface temperature S of the occupant and the ideal body surface temperature Sref.

[0046] If it is determined that no correction is necessary (NO in step S214), the recommended set temperature Tset_ref is determined as the set temperature Tset (step S218). On the other hand, if it is determined that correction is necessary for the recommended set temperature Tset_ref (YES in step S214), correction values ​​Ct and Cs are calculated (step S215), and the recommended set temperature Tset_ref is corrected using these values ​​(step S216). If the corrected recommended set temperature Tset_co is obtained by correcting the recommended set temperature Tset_ref, this corrected recommended set temperature Tset_co is determined as the set temperature Tset (step S217).

[0047] As described above, according to the air conditioning control ECU 11 (vehicle air conditioning control device) of the embodiment described above, if the internal and external conditions of the vehicle 100 have not changed since the end of the previous operation of the vehicle air conditioner 10, the set temperature Tset_OFF stored at the end of that operation is used, but if there has been a change, the set temperature Tset is determined in accordance with the change. In this way, the set temperature can be optimized and appropriate air conditioning control can be performed according to the environment inside and outside the vehicle, thereby improving the comfort of the occupants.

[0048] Although the embodiments of the present invention have been described in detail with reference to the drawings, the specific configurations are not limited to these embodiments, and the present invention also includes design changes within the scope of the present invention. Furthermore, the above-described embodiments can be combined by utilizing each other's technologies as long as there are no particular contradictions or problems in their purposes, configurations, etc. [Explanation of symbols]

[0049] 1: Vehicle control system, 3: In-vehicle network, 4: CGW, 10: Vehicle air conditioning system 11: Air conditioning control ECU, 21, 31: ECU, 41: Outside temperature sensor, 42: Interior temperature sensor 43: In-car camera, 100: Vehicle, 111: CPU, 112: ROM, 113: RAM

Claims

1. A vehicle air conditioning control device that controls a vehicle air conditioning device mounted on a vehicle to supply air whose temperature is adjusted based on a set temperature to the vehicle interior, It stores a preset recommended temperature setting based on the outside temperature. When the ignition switch of the vehicle is turned off, The outside temperature and the set temperature when the unit is off are memorized. When the ignition switch is turned on, When a difference between a current outside air temperature and the off-time outside air temperature is less than a predetermined value, the vehicle air conditioner is controlled based on the off-time set temperature; An air conditioning control device for a vehicle that controls the vehicle air conditioning device based on the recommended set temperature according to the current outside temperature when the difference between the current outside temperature and the off-time outside temperature is equal to or greater than a predetermined value.

2. acquiring environmental information based on an external environment and an internal environment of the vehicle; When the ignition switch is turned on, 2. The vehicle air conditioning control device according to claim 1, wherein when the difference between the current outside air temperature and the off-time outside air temperature is equal to or greater than a predetermined value, the vehicle air conditioning device is controlled based on a corrected set temperature obtained by correcting the recommended set temperature according to the current outside air temperature using the environmental information.

3. the environmental information is a body surface temperature of an occupant of the vehicle, The vehicle air conditioning control device according to claim 2, wherein the body surface temperature is acquired based on image data captured by a camera that captures an image of the interior of the vehicle.

4. 2. The vehicle air conditioning control device according to claim 1, wherein the recommended set temperature is determined based on an ideal vehicle interior temperature and an outside temperature determined for each occupant.

5. 5. The vehicle air conditioning control device according to claim 4, wherein the ideal vehicle interior temperature is determined for each occupant according to the outside air temperature, and is determined based on at least one of a temperature setting set by the occupant and a temperature adjustment operation by the occupant.

Images