JP6645377B2 - Air conditioning control device, air conditioning control method - Google Patents

Description

  The present invention relates to a technique for cooling a secondary battery using a heat pump for air-conditioning a vehicle interior.

  Vehicles equipped with large-capacity secondary batteries, such as electric vehicles and hybrid vehicles, have been developed. Generally, a secondary battery has an operating temperature range suitable for discharging or charging, and discharging or charging outside the appropriate operating temperature range shortens the life of the secondary battery. Therefore, the battery temperature of the secondary battery is monitored, and if the battery temperature is too low, the secondary battery is heated, and if the battery temperature is too high, the secondary battery is cooled. Is maintained in an appropriate operating temperature range.

Here, since the upper limit temperature of the appropriate operating temperature range is relatively low, it is difficult to cool the battery temperature below the upper limit temperature by cooling using cooling water and a radiator such as an engine. Therefore, a so-called heat pump is used for cooling the secondary battery.
In addition, if a dedicated heat pump is installed to cool the secondary battery, problems will arise from the viewpoint of mounting space and manufacturing costs. It is also used for cooling (for example, Patent Document 1).

JP 2013-189118 A

  However, if cooling of the secondary battery is started during air conditioning in the vehicle cabin, air conditioning may not be able to be performed as usual.In such a case, if the air conditioner is brought in for inspection and repair, the cause of the abnormality may be lost. There has been a problem that a great deal of trouble is required for inspection and repair without being able to identify them.

  The present invention has been made in view of the above-described problems of the related art, and avoids a situation in which a large amount of time is required for inspection and repair of an air conditioner even when a secondary battery is cooled using a heat pump of the air conditioner. The aim is to provide possible technologies.

In order to solve the above-described problems, in the air conditioning control device and the air conditioning control method according to the present invention, the battery of the secondary battery is cooled using a heat pump of an air conditioning device that air-conditions a vehicle interior. Then, when performing battery cooling, is the operation state of the air conditioner in a cooling operation state (that is, an operation state in which the indoor temperature is reduced by utilizing the decrease in the temperature of the refrigerant gas at the time of decompression and expansion) ? If it is determined whether battery cooling has occurred during the cooling operation , the occurrence of battery cooling is stored.
In this way, even if an inspection or repair is brought in as an abnormality of the air conditioner, it is checked whether or not the occurrence of battery cooling is memorized. Can be determined. As a result, it is possible to avoid a situation in which the cause of the abnormality cannot be identified and a great deal of trouble is required for inspection and repair.

FIG. 1 is an explanatory diagram illustrating a schematic configuration of an air conditioning system 1 including an air conditioning control device 100 according to the present embodiment. It is a block diagram showing the internal structure of air-conditioning control device 100 of this example. It is a flowchart of the first half part of the air-conditioning control process which the air-conditioning control apparatus 100 of a present Example performs. It is a flowchart of the latter half part of the air-conditioning control processing of a present Example. It is explanatory drawing which shows operation | movement of the air conditioning system 1 during cooling operation. It is explanatory drawing which shows operation | movement of the air conditioning system 1 during a heating operation. It is a flowchart of the first half part of the battery cooling process performed in an air conditioning control process. It is a flowchart of the latter half part of a battery cooling process. It is explanatory drawing which shows the operation | movement at the time of performing battery cooling during a heating operation. It is explanatory drawing which shows operation | movement at the time of performing battery cooling during cooling operation. FIG. 3 is an explanatory diagram illustrating cooling conditions of a secondary battery collected by an air conditioning control device. It is a block diagram showing the internal structure of air conditioning control device 150 of a modification. FIG. 9 is an explanatory diagram illustrating a screen displayed on the touch panel 2 to notify the start of battery cooling. It is a flowchart of the first half part of the battery cooling process of a modification. It is a flowchart of the latter half part of the battery cooling process of a modification.

Hereinafter, embodiments will be described in order to clarify the contents of the present invention described above.
A. Device configuration :
FIG. 1 shows a schematic configuration of an air conditioning system 1 including an air conditioning control device 100 according to the present embodiment. As illustrated, the air conditioning system 1 includes an air conditioner 10 for air conditioning the interior of a vehicle (not shown), a battery cooling device 40 for cooling a secondary battery 50 mounted on the vehicle (not shown), and an air conditioner. 10 and an air conditioning control device 100 that controls the operation of the battery cooling device 40.

The air conditioner 10 includes an electric compressor 11 for compressing refrigerant gas, an indoor condenser 12, a two-way cooling valve 13, a first expansion valve 14, an outdoor condenser 15, a second expansion valve 16, a three-way A valve 17, an evaporator 18, an accumulator 19, and a refrigerant pipe connecting these are provided. Note that the electric compressor 11 of the present embodiment corresponds to the “compressor” of the present invention.
Among them, the indoor condenser 12, the outdoor condenser 15, and the evaporator 18 are a kind of heat exchanger for exchanging heat between the refrigerant gas and the air, and are mounted in a ventilation passage 20 for blowing air into the vehicle interior. Have been.
Further, the first expansion valve 14 and the second expansion valve 16 are fixed throttles, and when the refrigerant gas compressed by the electric compressor 11 passes through the first expansion valve 14 or the second expansion valve 16, the pressure is reduced and expanded. As a result, the temperature of the refrigerant gas decreases.

The cooling two-way valve 13 and the three-way valve 17 have a function of switching a path through which the refrigerant gas compressed by the electric compressor 11 flows.
For example, when the cooling two-way valve 13 is closed, the refrigerant gas passes through the first expansion valve 14 which is a fixed throttle. On the other hand, when the cooling two-way valve 13 is opened, the refrigerant gas passes through the cooling two-way valve 13 without passing through the first expansion valve 14 having a large passage resistance.
Further, by switching the three-way valve 17, the refrigerant gas flows from the three-way valve 17 through the evaporator 18 to the accumulator 19, and flows from the three-way valve 17 into the accumulator 19 without passing through the evaporator 18. Path can be switched.

In the accumulator 19, the liquid phase portion included in the flowing refrigerant gas is separated, and the gas phase refrigerant gas is supplied to the electric compressor 11.
A pressure sensor 11 s is attached to the refrigerant pipe on the downstream side of the electric compressor 11, detects the pressure of the refrigerant gas compressed by the electric compressor 11 (hereinafter, refrigerant pressure), and outputs the detected pressure to the air conditioning control device 100. . A temperature sensor 18 s is attached to the evaporator 18, detects the temperature of the evaporator 18 (hereinafter, evaporator temperature), and outputs the detected temperature to the air conditioning controller 100.

The air conditioner 10 is also provided with a blower 21 and an air mixing plate 22. The blower 21 is mounted on the upstream side of the evaporator 18 in the air passage 20, and blows air toward the evaporator 18 by rotating under the control of the air conditioning controller 100.
The air mixing plate 22 is mounted at a position downstream of the evaporator 18 and upstream of the indoor condenser 12 in the ventilation passage 20 so that the position can be adjusted. The air conditioning controller 100 controls the position of the air mixing plate 22 to adjust the amount of air that has passed through the evaporator 18 and flows into the indoor condenser 12.

The battery cooling device 40 of the present embodiment has a function of cooling a secondary battery 50 mounted on a vehicle (not shown), and includes a battery cooling heat exchanger 41, a battery cooling two-way valve 42, A water pump 43 is provided.
The battery cooling two-way valve 42 is connected to a battery cooling refrigerant pipe 44 that branches out and draws out a refrigerant pipe that connects the three-way valve 17 and the evaporator 18 of the air conditioner 10 described above. The battery cooling refrigerant pipe 44 on the downstream side of the battery cooling two-way valve 42 passes between the evaporator 18 and the accumulator 19 of the air conditioner 10 via the battery cooling heat exchanger 41. Merges with refrigerant piping. Accordingly, when the battery cooling two-way valve 42 is opened, the refrigerant gas flowing between the three-way valve 17 and the evaporator 18 of the air conditioner 10 is diverted to the battery cooling refrigerant pipe 44, and the battery cooling heat is discharged. After passing through the exchanger 41, the refrigerant is returned to the refrigerant pipe between the evaporator 18 and the accumulator 19.

The cooling water pump 43 is connected to a cooling water pipe 45 for cooling the secondary battery 50, and the cooling water pipe 45 on the downstream side of the cooling water pump 43 passes through the battery cooling heat exchanger 41. It is connected to a secondary battery 50. Therefore, when the air-conditioning control device 100 drives the cooling water pump 43, the cooling water circulates between the secondary battery 50 and the battery cooling heat exchanger 41 via the cooling water pipe 45.
At this time, the cooling water is cooled by heat exchange between the refrigerant gas flowing through the battery cooling refrigerant pipe 44 and the cooling water flowing through the cooling water pipe 45 in the battery cooling heat exchanger 41, and the cooling water is cooled. Is refluxed, whereby the secondary battery 50 is cooled.
The secondary battery 50 has a battery temperature sensor 50 s for detecting the battery temperature, and the battery temperature detected by the battery temperature sensor 50 s is output to the air conditioning control device 100.

A pressure sensor 11s, a temperature sensor 18s, and a battery temperature sensor 50s are connected to the air conditioning control device 100. The refrigerant pressure is output from the pressure sensor 11s, the evaporator temperature is output from the temperature sensor 18s, and the battery temperature sensor 50s. The battery temperature is input from. Further, a touch panel 2 operated by an occupant of a vehicle (not shown) is also connected to the air-conditioning control device 100. When the occupant operates the touch panel 2, the air-conditioning control device 100 is operated in either a cooling operation or a heating operation. It is possible to set such an air-conditioning operation or set a target temperature for air-conditioning.
Further, various sensors described later are connected to the air-conditioning control device 100. Based on the outputs of the sensors, the electric compressor 11, the two-way cooling valve 13, the three-way valve 17, the blower 21, the air mixing By controlling the operation of the plate 22, air conditioning in the vehicle compartment is performed.
Further, when it is determined that the battery cooling of the secondary battery 50 is necessary, the battery cooling is performed by controlling the battery cooling two-way valve 42 and the cooling water pump 43. This will be described in detail later.

FIG. 2 shows a rough internal structure of the air conditioning control device 100 of the present embodiment. As illustrated, the air-conditioning control device 100 of the present embodiment includes an air-conditioning operation acquisition unit 101, a target temperature acquisition unit 102, an indoor temperature acquisition unit 103, an outdoor temperature acquisition unit 104, a solar radiation amount acquisition unit 105, An operation state control unit 106, a battery temperature acquisition unit 107, a cooling necessity determination unit 108, a battery cooling unit 109, a traveling state acquisition unit 110, a cooling condition collection unit 111, and a cooling occurrence storage unit 112 are provided. ing.
Note that these “parts” are abstract concepts that classify the inside of the air conditioning control device 100 for convenience, focusing on the functions of the air conditioning control device 100 for performing air conditioning and battery cooling in the vehicle cabin. is there. Therefore, it does not indicate that the air-conditioning control device 100 is physically divided into these “units”. These “units” can be realized as a computer program executed by a CPU, as an electronic circuit including an LSI or a memory, or further, by combining these. . In the present embodiment, the air-conditioning control device 100 is mainly formed by a microcomputer including a CPU, a ROM, a RAM, and the like. Therefore, the above “unit” is mainly realized by a computer program executed by the CPU. .

The air-conditioning operation acquisition unit 101 is connected to the touch panel 2 and acquires an air-conditioning operation (in this embodiment, either a cooling operation or a heating operation) set by an occupant of a vehicle (not shown) operating the touch panel 2. Then, it outputs to the operation state control unit 106 described later.
The target temperature acquisition unit 102 is also connected to the touch panel 2, acquires the target temperature of air conditioning set by the occupant of the vehicle by operating the touch panel 2, and outputs the target temperature to the operation state control unit 106 described later.
The indoor temperature acquisition unit 103 is connected to the indoor temperature sensor 3 mounted in the vehicle interior of the vehicle (not shown), acquires the temperature in the vehicle interior detected by the indoor temperature sensor 3 (hereinafter, indoor temperature), and operates. Output to the state control unit 106.
The outdoor temperature obtaining unit 104 is connected to an outdoor temperature sensor 4 mounted on a vehicle (not shown), obtains the outdoor temperature detected by the outdoor temperature sensor 4 (hereinafter, outdoor temperature), and operates the operation state control unit. Output to 106.
The solar radiation amount acquisition unit 105 is connected to the solar radiation amount sensor 5 mounted on a vehicle (not shown), acquires the solar radiation amount detected by the solar radiation amount sensor 5, and outputs the acquired solar radiation amount to the operation state control unit 106.

  When the operation state control unit 106 acquires the air conditioning operation set by the occupant of the vehicle from the air conditioning operation acquisition unit 101, the operation state control unit 106 adjusts the cooling two-way valve 13, the three-way valve 17, the air mixing plate 22 Switch the setting of. Further, based on the target temperature acquired from the target temperature acquiring unit 102, the indoor temperature acquired from the indoor temperature acquiring unit 103, the outdoor temperature acquired from the outdoor temperature acquiring unit 104, and the amount of solar radiation acquired from the amount of solar radiation acquiring unit 105, The rotation speed of the electric compressor 11 and the blower 21 is controlled. As will be described later in detail, when the air-conditioning operation is the cooling operation, the evaporator temperature detected by the temperature sensor 18s is also used for control, and when the air-conditioning operation is the heating operation, the evaporator temperature is detected by the pressure sensor 11s. Refrigerant pressure is also used for control.

The battery temperature acquisition unit 107 is connected to the battery temperature sensor 50s, acquires the battery temperature of the secondary battery 50, and outputs the battery temperature to the cooling necessity determination unit 108.
The cooling necessity determining unit 108 determines whether the secondary battery 50 needs to be cooled based on the battery temperature acquired from the battery temperature acquiring unit 107, and outputs a result of the determination to the battery cooling unit 109.
The battery cooling unit 109 is connected to the battery cooling two-way valve 42 and the cooling water pump 43 described above with reference to FIG. 1. When battery cooling is required, the battery cooling unit 109 opens the battery cooling two-way valve 42. In addition, the refrigerant gas is caused to flow through the battery cooling refrigerant pipe 44, and the cooling water pump 43 is driven to circulate the cooling water.
Further, when starting battery cooling, battery cooling section 109 also outputs a message to that effect to operation state control section 106 and cooling condition collecting section 111.

When receiving the information to start battery cooling from the battery cooling unit 109, the operating state control unit 106 increases the cooling capacity by the amount of the battery cooling during the cooling operation. However, there may be a case where there is no room for increasing the cooling capacity. In such a case, the battery cooling is performed by dividing a part of the cooling capacity for air conditioning. In the heating operation, the operation is temporarily switched to the cooling operation so that the low-temperature refrigerant gas is supplied to the battery cooling refrigerant pipe 44 and the battery cooling heat exchanger 41.
Further, when battery cooling occurs, the operating state control unit 106 outputs operating conditions (contents of the air conditioning operation, target temperature, indoor temperature, outdoor temperature, solar radiation, etc.) at that time to the cooling condition collecting unit.

The cooling condition collecting unit 111 also stores the running conditions of the vehicle, such as the running speed, the position information, and the running state such as the running distance and running time from the start of the running, in addition to the operating conditions when the battery cooling occurs. Collect as an occurrence condition. That is, the traveling condition acquisition unit 110 is connected to the cooling condition collection unit 111, and the vehicle speed sensor 6 and the navigation device 7 are connected to the traveling condition acquisition unit 110. Therefore, the cooling condition collecting unit 111 can acquire the traveling speed detected by the vehicle speed sensor 6 via the traveling state acquiring unit 110. In addition, as for the position information and the information such as the traveling distance and the traveling time from the start of traveling, the information possessed by the navigation device 7 can be acquired via the traveling state acquiring unit 110.
Further, the cooling condition collecting unit 111 is connected to the wireless communication device 8, transmits the collected battery cooling occurrence condition to an external server, and determines whether the storage of the battery cooling occurrence condition is necessary. . Then, when it is determined that storage is necessary, a part of the battery cooling occurrence condition is output to the cooling occurrence storage unit 112. The method of determining whether the storage of the battery cooling occurrence condition is necessary or not, and the battery cooling occurrence condition output to the cooling occurrence storage unit 112 when the storage is determined to be necessary, will be described later in detail.
The cooling occurrence storage unit 112 stores the information received from the cooling condition collection unit 111 in a readable state.

B. Air conditioning control processing:
FIG. 3 shows a flowchart of an air conditioning control process executed by the air conditioning control device 100 of the present embodiment. As shown, when the air-conditioning control process is started, first, the air-conditioning operation set by the occupant of the vehicle is acquired (S100). As described above with reference to FIG. 2, by operating the touch panel 2, the occupant of the vehicle can set any one of the air conditioning operation of the cooling operation or the heating operation to the air conditioning control device 100.
Subsequently, the target temperature of the air conditioning set by the occupant of the vehicle is acquired (S101). As described above with reference to FIG. 2, the occupant of the vehicle can set the target temperature of the air conditioning by operating the touch panel 2.
Further, the indoor temperature, the outdoor temperature, and the solar radiation detected by the indoor temperature sensor 3, the outdoor temperature sensor 4, and the solar radiation sensor 5 are acquired (S102).

Then, based on the target temperature, information on the indoor temperature, the outdoor temperature, the amount of solar radiation, and the like, the target temperature of the air to be blown into the vehicle interior (hereinafter, target outlet temperature Tao) is calculated (S103). For example, if the room temperature is higher than the target temperature during the cooling operation, the room temperature needs to be lowered, so the target outlet temperature Tao becomes lower. As a matter of course, as the room temperature becomes higher than the target temperature, the target outlet temperature Tao becomes lower.
Further, it is considered that as the outdoor temperature increases or the amount of solar radiation increases, the indoor temperature is likely to increase. Therefore, the target outlet temperature Tao needs to be lowered. As described above, the target outlet temperature Tao is determined based on information such as the target temperature, the indoor temperature, the outdoor temperature, and the amount of solar radiation. In this embodiment, the target blowing temperature Tao is calculated using the following formula.
Target outlet temperature Tao = K1 · target temperature-K2 · indoor temperature
-K3, outdoor temperature-K4, solar radiation + C
Here, K1 to K4 are proportional coefficients, and C is a correction constant.

  Subsequently, it is determined whether the air conditioning operation set by the occupant of the vehicle is a cooling operation (S104). If the air conditioning operation is a cooling operation (S104: yes), the two-way cooling valve 13 and the three-way valve are used. 17. The air mixing plate 22 is switched to the cooling operation state (S105). In the cooling operation state, the two-way cooling valve 13 is opened, and the three-way valve 17 is switched to a state in which the refrigerant gas flows toward the evaporator 18. Further, the air mixing plate 22 is switched to a state that prevents air from flowing into the indoor condenser 12.

  FIG. 5 shows the operation of the air conditioner 10 in the cooling operation state. As described above with reference to FIG. 1, the air conditioner 10 is provided with various refrigerant pipes. In the cooling operation state, the refrigerant gas flows through the refrigerant pipes indicated by the thick solid line in FIG. 5. . In FIG. 5, arrows attached along the refrigerant pipes indicate directions in which the refrigerant gas flows. Hereinafter, the operation of the air conditioner 10 in the cooling operation state will be described with reference to FIG.

In the cooling operation state, the high-pressure compressed refrigerant gas is pumped to the refrigerant pipe by operating the electric compressor 11. The pumped high-pressure refrigerant gas is supplied to the outdoor condenser 15 via the indoor condenser 12 and the two-way cooling valve 13.
The refrigerant pipe from the indoor condenser 12 to the outdoor condenser 15 is divided into a path passing through the two-way cooling valve 13 and a path passing through the first expansion valve 14. However, in the cooling operation state, the cooling two-way valve 13 is in the open state, so that the refrigerant gas avoids the first expansion valve 14 having a large passage resistance, and exclusively passes through the cooling two-way valve 13. It is supplied to the outdoor condenser 15. In FIG. 5, the refrigerant pipe passing through the first expansion valve 14 is indicated by a thin broken line, which indicates that refrigerant gas does not flow through this part of the refrigerant pipe.

Further, when the refrigerant gas is compressed to a high pressure by the electric compressor 11, the refrigerant gas receives work from the outside (here, the electric compressor 11), so that the internal energy increases. As a result, the refrigerant gas is pumped from the electric compressor 11. The refrigerant gas has a high pressure and a high temperature. Then, the high-temperature and high-pressure refrigerant gas flows from the indoor condenser 12 to the outdoor condenser 15 via the two-way cooling valve 13.
The outdoor condenser 15 is a heat exchanger, and receives the traveling wind of the vehicle and the air blower (not shown). For this reason, the temperature of the high-temperature refrigerant gas flowing into the outdoor condenser 15 is reduced by exchanging heat with the surrounding air.
The indoor condenser 12 into which the high-temperature and high-pressure refrigerant gas compressed by the electric compressor 11 first flows is also a heat exchanger, but as shown in FIG. 5, the indoor condenser 12 is an air mixing plate. 22 prevents the wind from hitting. Therefore, in the cooling operation state, the refrigerant gas is not actually radiated in the indoor condenser 12, but is radiated exclusively by the outdoor condenser 15.

The high-pressure refrigerant gas thus radiated and cooled by the outdoor condenser 15 is reduced in pressure and expanded when passing through the second expansion valve 16. At this time, the expanding refrigerant gas does work to the outside, so that the internal energy is reduced. Therefore, the temperature of the refrigerant gas cooled by the heat radiation in the outdoor condenser 15 is further reduced.
In the cooling operation state, the three-way valve 17 is switched to a state in which the refrigerant gas is supplied to the evaporator 18. Is done. Therefore, when air is blown toward the evaporator 18 by rotating the blower 21, the air cooled by the low-temperature refrigerant gas becomes cold air, flows out of the evaporator 18, and is guided by the air mixing plate 22. The air is blown into the room from the air passage 20.

Further, the low-temperature refrigerant gas supplied to the evaporator 18 rises in temperature by absorbing the heat of the air in the evaporator 18, and flows into the accumulator 19 in that state.
In the accumulator 19, the refrigerant gas is separated into a liquid phase portion and a gas phase portion, and the refrigerant gas in the gas phase portion is supplied to the electric compressor 11 and compressed by the electric compressor 11. That is, since the electric compressor 11 compresses the refrigerant gas that has absorbed heat from the air in the evaporator 18, the temperature of the compressed refrigerant gas greatly increases. Then, after the high-temperature and high-pressure refrigerant gas is led to the outdoor condenser 15 to radiate heat, the refrigerant gas is decompressed and expanded by the second expansion valve 16 to generate a low-temperature refrigerant gas, and the low-temperature refrigerant gas is guided to the evaporator 18. Absorbs the heat of air. Therefore, when this series of operations is viewed as a whole, the heat of the air blown by the blower 21 is pumped out by the evaporator 18, and the operation is like a pump that discharges the air to the outdoor by the outdoor condenser 15. For this reason, the above-described thermal cycle is sometimes called a “heat pump”.

  The operation of the air conditioner 10 in the cooling operation state has been described above. In the air-conditioning control process shown in FIG. 3, when it is determined that the air-conditioning operation is set to the cooling operation (S104: yes), the two-way cooling valve 13 and the three-way valve 17 are operated to perform the above-described operation. Then, the setting of the air mixing plate 22 is switched (S105). That is, the cooling two-way valve 13 is set to the open state, the three-way valve 17 is set to the state in which the refrigerant gas is supplied to the evaporator 18, and the air mixing plate 22 is configured to allow air to flow into the indoor condenser 12. Switch to blocking state.

  Subsequently, a target temperature of the evaporator 18 (hereinafter, target evaporator temperature Teo) is determined based on the target outlet temperature Tao calculated in S103 (S106). As a method of determining the target evaporator temperature Teo, various well-known methods can be used. In this embodiment, the target evaporator temperature Teo is determined by referring to a map in which an appropriate target evaporator temperature Teo is set for the target outlet temperature Tao.

Thereafter, based on the temperature difference between the target evaporator temperature Teo and the actual temperature of the evaporator 18 (hereinafter, evaporator temperature Te), the amount of change in the rotational speed Rc of the electric compressor 11 (hereinafter, the amount of change in rotational speed) ΔRc) is determined (S107). The evaporator temperature Te can be detected using a temperature sensor 18s mounted on the evaporator 18.
Various known methods can be used to determine the rotation speed change amount ΔRc of the electric compressor 11 based on the temperature difference between the target evaporator temperature Teo and the evaporator temperature Te. The reason why the rotation speed change amount ΔRc can be determined from the temperature difference between the temperature Teo and the evaporator temperature Te can be understood by considering the following.
For example, it is assumed that the target evaporator temperature Teo and the evaporator temperature Te are the same. In this case, since there is no need to change the current rotation speed Rc, the rotation speed change amount ΔRc becomes “0”. On the other hand, when the target evaporator temperature Teo is lower than the evaporator temperature Te, it is necessary to increase the cooling capacity, so that the rotation speed change amount ΔRc becomes a positive value. Further, as the target evaporator temperature Teo becomes lower than the evaporator temperature Te, the absolute value of the rotation speed change amount ΔRc increases. Conversely, when the target evaporator temperature Teo is higher than the evaporator temperature Te, the cooling capacity is considered to be too large, and the rotation speed change amount ΔRc becomes a negative value. Further, as the target evaporator temperature Teo becomes higher than the evaporator temperature Te, the negative absolute value of the rotation speed change amount ΔRc increases.
As is clear from the above description, if the temperature difference between the target evaporator temperature Teo and the evaporator temperature Te is known, the rotation speed change amount ΔRc of the electric compressor 11 can be determined accordingly.

When the rotation speed change amount ΔRc is obtained (S107), a temporary target rotation speed of the electric compressor 11 (hereinafter, a temporary target rotation speed Rtmp) is calculated using the following equation (S111).
Temporary target rotation speed Rtmp = rotation speed Rc + rotation speed change amount ΔRc
The reason why the calculated rotation speed is the “temporary” target rotation speed will be described later.

In the above, the processing in the case where the air-conditioning operation set by the occupant of the vehicle is the cooling operation, that is, in the case where “yes” is determined in S104, has been described. On the other hand, when the air conditioning operation is set to the heating operation (S104: no), the following processing is performed.
First, the two-way cooling valve 13, the three-way valve 17, and the air mixing plate 22 are switched to the heating operation state (S108). In the heating operation state, the two-way cooling valve 13 is closed, and the three-way valve 17 is switched to a state in which the refrigerant gas bypasses the evaporator 18. The air mixing plate 22 is switched to a state in which air flows into the indoor condenser 12. As described above, by switching the settings of the two-way cooling valve 13, the three-way valve 17, and the air mixing plate 22, the heating operation can be realized by the air conditioner 10. Hereinafter, this point will be described.

FIG. 6 shows the operation of the air conditioner 10 in the heating operation state. As in the case of FIG. 5 showing the above-described cooling operation state, also in FIG. 6, the refrigerant pipe through which the refrigerant gas flows is indicated by a thick solid line, and the direction in which the refrigerant gas flows is indicated by arrows attached along the refrigerant pipe. .
Even in the heating operation state, similarly to the cooling operation state, the electric compressor 11 is operated to pump the refrigerant gas compressed to a high pressure to the refrigerant pipe. Since the refrigerant gas is worked by the electric compressor 11 when it is compressed to a high pressure, the internal energy increases and the temperature rises, and the refrigerant gas is supplied to the indoor condenser 12 as a high-temperature and high-pressure refrigerant gas. Is done.
Further, the indoor condenser 12 is a heat exchanger, and in a heating operation state, as shown in FIG. 6, the air blown by the blower 21 is brought into a state where it is guided to the indoor condenser 12. A mixing plate 22 is set. For this reason, when the high-temperature refrigerant gas is supplied to the indoor condenser 12, the air blown by the blower 21 is heated, becomes warm air, and is blown into the room from the air passage 20.
In addition, the high-temperature and high-pressure refrigerant gas supplied to the indoor condenser 12 due to the heating of the air flows out of the indoor condenser 12 in a cooled state.

  In the heating operation, the two-way cooling valve 13 is in a closed state. Therefore, the high-pressure refrigerant gas flowing out of the indoor condenser 12 passes through a path provided with the first expansion valve 14, as shown in FIG. At this time, the high-pressure refrigerant gas is decompressed and expanded by the first expansion valve 14, and the internal energy is reduced. Therefore, the temperature of the refrigerant gas cooled by the heat radiation in the indoor condenser 12 is further reduced. Then, the refrigerant gas flows into the outdoor condenser 15. As described above, since the traveling wind of the vehicle or the air blown by a blower (not shown) is applied to the outdoor condenser 15, when the low-temperature refrigerant gas flows into the outdoor condenser 15, the refrigerant gas is heated by the surrounding air. Absorbs heat and the temperature rises.

Thereafter, the refrigerant gas whose temperature has increased in the outdoor condenser 15 passes through the second expansion valve 16 and reaches the three-way valve 17. As described above, in the heating operation, the three-way valve 17 is set so that the refrigerant gas bypasses the evaporator 18. Therefore, the refrigerant gas that reaches the three-way valve 17 does not pass through the evaporator 18 and accumulates. It flows into the radiator 19.
In the cooling operation described above, the refrigerant gas is decompressed and expanded by the second expansion valve 16 to lower the temperature. However, in the heating operation, the refrigerant gas is not decompressed and expanded by the second expansion valve 16 to lower the temperature. . The reason for this is that in the heating operation, the pressure of the refrigerant gas has already been reduced by the first expansion valve 14 and the pressure has been reduced.

  In the accumulator 19, the refrigerant gas is separated into a liquid phase portion and a gas phase portion, and the refrigerant gas in the gas phase portion is supplied to the electric compressor 11 and compressed by the electric compressor 11. That is, in the heating operation, the refrigerant gas having absorbed heat from the air by the outdoor condenser 15 is compressed by the electric compressor 11, so that the temperature of the compressed refrigerant gas greatly increases. Then, after the rising and high temperature refrigerant gas is led to the indoor condenser 12 to radiate heat, it is further decompressed and expanded by the first expansion valve 14 to generate a lower temperature refrigerant gas. To the outdoor condenser 15 to absorb the heat of the air. Therefore, when this series of operations is viewed as a whole, the operation is like a pump that discharges the heat pumped from the air outside the vehicle compartment by the outdoor condenser 15 to the air in the ventilation passage 20 by the indoor condenser 12. become. From this, it can be considered that the above-described heat cycle differs from the above-described cooling operation in the operation direction of the heat cycle, that is, the direction in which heat is pumped and discharged.

  In the air-conditioning control process shown in FIG. 3, when it is determined that the air-conditioning operation is set to the heating operation (S104: no), the two-way cooling valve 13 or the three-way valve 17 is operated to perform the above-described operation. Then, the setting of the air mixing plate 22 is switched (S108). That is, the two-way valve 13 for cooling is closed, the three-way valve 17 is in a state where refrigerant gas bypasses the evaporator 18, and the air mixing plate 22 is switched to a state where air flows into the indoor condenser 12. .

  Subsequently, in the heating operation, the target pressure at which the electric compressor 11 pumps the refrigerant gas (hereinafter, target refrigerant pressure Peo) is determined based on the target outlet temperature Tao calculated in S103 (S109). As a method of determining the target refrigerant pressure Peo, various well-known methods can be used. In the present embodiment, the determination is made by referring to a map in which an appropriate target refrigerant pressure Peo is set for the target outlet temperature Tao.

Thereafter, based on the pressure difference between the target refrigerant pressure Peo and the actual pressure at which the electric compressor 11 pumps the refrigerant gas (hereinafter, the actual refrigerant pressure Pre), the amount of change in the rotation speed Rc of the electric compressor 11 ( Hereinafter, the rotation speed change amount ΔRc) is determined (S110). The actual refrigerant pressure Pre can be detected using a pressure sensor 11s attached to a refrigerant pipe on the downstream side of the electric compressor 11.
Various known methods can be used to determine the rotational speed change amount ΔRc of the electric compressor 11 based on the pressure difference between the target refrigerant pressure Peo and the actual refrigerant pressure Pre. The reason why the rotation speed change amount ΔRc can be determined from the pressure difference between Peo and the actual refrigerant pressure Pre can be understood as follows.
For example, if the target refrigerant pressure Peo and the actual refrigerant pressure Pre are the same, there is no need to change the current rotation speed Rc, so the rotation speed change amount ΔRc is “0”. On the other hand, when the target refrigerant pressure Peo is lower than the actual refrigerant pressure Pre, it is necessary to increase the heating capacity, so the rotation speed change amount ΔRc becomes a positive value. Further, as the target refrigerant pressure Peo becomes lower than the actual refrigerant pressure Pre, the absolute value of the rotation speed change amount ΔRc becomes larger. Conversely, when the target refrigerant pressure Peo is higher than the actual refrigerant pressure Pre, the heating capacity is considered to be too large, and the rotation speed change amount ΔRc has a negative value. Further, as the target refrigerant pressure Peo becomes higher than the actual refrigerant pressure Pre, the negative absolute value of the rotation speed change amount ΔRc becomes larger.
As is apparent from the above description, if the pressure difference between the target refrigerant pressure Peo and the actual refrigerant pressure Pre is known, the rotation speed change amount ΔRc of the electric compressor 11 can be determined accordingly.

When the rotation speed change amount ΔRc is obtained in the heating operation in this way (S110), the temporary target rotation speed of the electric compressor 11 (hereinafter, the temporary target rotation speed Rtmp) is calculated using the following equation as in the cooling operation. ) Is calculated (S111).
Temporary target rotation speed Rtmp = rotation speed Rc + rotation speed change amount ΔRc

  As described above, the provisional target rotation speed of the electric compressor 11 (that is, the provisional target rotation speed Rtmp) is calculated regardless of whether the air conditioning operation set by the occupant of the vehicle is the cooling operation or the heating operation. (S111).

Subsequently, it is determined whether or not the provisional target rotation speed Rtmp exceeds the maximum rotation speed Rmax of the electric compressor 11 (S112 in FIG. 4). If the provisional target rotation speed Rtmp does not exceed the maximum rotation speed Rmax (S112: no), the provisional target rotation speed Rtmp is set to the "real" target rotation speed Rm (S114).
On the other hand, when the provisional target rotation speed Rtmp exceeds the maximum rotation speed Rmax (S112: yes), the maximum rotation speed Rmax is set to the target rotation speed Rm of the electric compressor 11 (S113).

  After the target rotation speed Rm of the electric compressor 11 is determined (S113 or S114), the electric compressor 11 is driven at the determined target rotation speed Rm (S115). That is, the current value or the AC frequency applied to the electric compressor 11 is controlled so that the rotation speed Rc of the electric compressor 11 approaches the target rotation speed Rm.

Subsequently, the battery temperature of the secondary battery 50 is obtained (S116). As described above with reference to FIG. 2, the battery temperature can be detected using the battery temperature sensor 50s.
Then, based on the obtained battery temperature, it is determined whether or not the battery of the secondary battery 50 needs to be cooled (S117). The necessity of battery cooling can be determined in consideration of various conditions, but simply, it may be determined that battery cooling is required when the battery temperature exceeds a predetermined threshold temperature.
As a result, when it is determined that battery cooling is necessary (S117: yes), a battery cooling process described later is started (S200).

On the other hand, when it is determined that the battery cooling is unnecessary (S117: no), it is determined whether or not to terminate the air conditioning control process shown in FIGS. 3 and 4 (S118), and when the process is not terminated. (S118: no), the process returns to the top, acquires the air conditioning operation set by the occupant of the vehicle (S100 in FIG. 3), and then executes the above-described series of processes.
On the other hand, if it is determined that the processing is to be ended (S118 in FIG. 4: no), the air-conditioning control processing shown in FIGS. 3 and 4 is ended.

C. Battery cooling process:
FIGS. 7 and 8 show flowcharts of the battery cooling process. This processing is started by the air-conditioning control device 100 when it is determined that battery cooling is necessary in the above-described air-conditioning control processing (S117: yes in FIG. 4).
As shown in FIG. 7, when the battery cooling process (S200) is started, first, the current operating conditions of the air conditioner 10, that is, whether the air conditioning operation is the cooling operation or the heating operation, and the electric compressor Eleven rotation speeds Rc are stored (S201). The reason for this is that, as described above with reference to FIG. 1, the battery cooling device 40 performs battery cooling using the heat pump of the air conditioner 10. Therefore, when the battery cooling is started, the air conditioner 10 based on the settings of the occupant of the vehicle is used. This is because the operating conditions of the vehicle change. Therefore, after the battery cooling is completed, the operating conditions of the air conditioner 10 are stored so that the original operating conditions can be restored.

Subsequently, it is determined whether the current air conditioning operation of the air conditioner 10 is a cooling operation (S202). As a result, when the current air conditioning operation is the heating operation (S202: no), the setting of the two-way cooling valve 13 and the three-way valve 17 is switched to the setting of the cooling operation state (S203). The air mixing plate 22 is set in the heating operation state described above with reference to FIG. 6, that is, in a state where air from the blower 21 is guided to the indoor condenser 12.
Here, an outline of a method of performing battery cooling during the heating operation will be described.

FIG. 9 shows operations of the air conditioner 10 and the battery cooling device 40 when performing battery cooling during the heating operation. Like FIG. 5 or FIG. 6 described above, in FIG. 9 as well, the refrigerant pipe through which the refrigerant gas flows and the battery cooling refrigerant pipe 44 are represented by thick solid lines, and the direction in which the refrigerant gas flows is given along the refrigerant pipe. Represented by arrows.
As shown in FIG. 9, when performing battery cooling, the two-way cooling valve 13 and the three-way valve 17 are set by opening the two-way cooling valve 13 similarly to the cooling operation shown in FIG. 5. The three-way valve 17 is set so that the refrigerant gas is supplied to the evaporator 18.
For this reason, when the electric compressor 11 is operated, the compressed and high-temperature and high-pressure refrigerant gas is supplied to the indoor condenser 12, as in the case of the cooling operation described above with reference to FIG. After the heat is radiated by the indoor condenser 12, the refrigerant flows into the outdoor condenser 15 via the cooling two-way valve 13, and the high-pressure refrigerant gas further radiated and cooled by the outdoor condenser 15 is supplied to the second expansion valve 16. , The temperature of the refrigerant gas further decreases. The low-temperature refrigerant gas thus generated is supplied to the evaporator 18 by the three-way valve 17, absorbs the heat of the air by the evaporator 18, and flows into the accumulator 19.

Here, a battery cooling refrigerant pipe 44 branches off from the refrigerant pipe connecting the three-way valve 17 and the evaporator 18, and this battery cooling refrigerant pipe 44 is connected to the battery cooling two-way valve 42. Have been. Since the battery cooling two-way valve 42 is in a closed state while battery cooling is not performed, the refrigerant gas flowing from the three-way valve 17 toward the evaporator 18 is not diverted to the battery cooling refrigerant pipe 44. Absent.
However, when performing battery cooling, the battery cooling two-way valve 42 is opened, so that a part of the refrigerant gas flowing toward the evaporator 18 is diverted to the battery cooling refrigerant pipe 44. The refrigerant gas flowing into the battery cooling refrigerant pipe 44 passes through the battery cooling heat exchanger 41 via the battery cooling two-way valve 42, and then flows between the evaporator 18 and the accumulator 19. The refrigerant gas merges with the refrigerant gas flowing from the evaporator 18 toward the accumulator 19 (see FIG. 9).

As described above, since the refrigerant gas flowing from the three-way valve 17 toward the evaporator 18 is a low-temperature refrigerant gas decompressed and expanded by the second expansion valve 16, the low-temperature refrigerant gas is supplied to the battery cooling heat exchanger 41. Will be done. Then, the cooling water pump 43 is driven to circulate the cooling water through the cooling water pipe 45. This makes it possible to generate cold water by cooling the cooling water with the low-temperature refrigerant gas, and to cool the secondary battery 50 using the cold water.
In FIG. 9, the cooling water pipe 45 is indicated by a thick broken line to indicate that the cooling water is flowing. The broken arrow displayed along the cooling water pipe 45 indicates the direction in which the cooling water flows.

In the battery cooling process shown in FIG. 7, when the current air-conditioning operation is determined to be the heating operation (S202: no), the two-way cooling valve 13 and the three-way valve 17 are set to the cooling operation in order to execute the above-described battery cooling. The state has been switched to the setting of the state (S203).
Subsequently, a predetermined rotation speed (hereinafter, a rotation speed for battery cooling) preset as a rotation speed for battery cooling is set as a target rotation speed Rm of the electric compressor 11 (S204). In the present embodiment, the description will be made assuming that the battery cooling rotation speed is set to an appropriate value in advance, but may be changed according to the battery temperature, the outdoor temperature, or the like.

Thereafter, the battery cooling storage flag is set to ON (S209). The battery cooling storage flag is a flag indicating whether or not the occurrence of battery cooling is stored. The state in which the battery cooling storage flag is set to ON indicates that the occurrence of battery cooling is stored. The state where the cooling storage flag is set to OFF indicates that the occurrence of battery cooling is not stored.
When the battery cooling storage flag is set in this way, the battery cooling two-way valve 42 is opened, the cooling water pump 43 is driven (S210), and the electric compressor 11 is driven at the target rotation speed Rm (S211). Thus, the battery cooling of the secondary battery 50 is started as described above with reference to FIG.

In the above, the process of starting the battery cooling when the air conditioning operation when the need to cool the battery is the heating operation (S202: no) has been described. On the other hand, when the air conditioning operation is the cooling operation (S202: yes), it is not necessary to switch the setting of the two-way cooling valve 13 and the three-way valve 17.
Here, a brief description will be given of a method of performing battery cooling during the cooling operation.

FIG. 10 shows operations of the air conditioner 10 and the battery cooling device 40 when performing battery cooling during the cooling operation. Similarly to FIG. 9 described for the case where the battery cooling is performed during the heating operation, in FIG. 10, the refrigerant pipe through which the refrigerant gas flows and the battery cooling refrigerant pipe 44 are represented by thick solid lines, and the direction in which the refrigerant gas flows is indicated by the refrigerant pipe. Are indicated by arrows attached along the lines.
As is apparent from a comparison between FIG. 9 and FIG. 10, although there is a difference in the state in which the air mixing plate 22 is set, the battery cooling during the heating operation (see FIG. 9) is also performed during the cooling operation. (See FIG. 10), the flows of the refrigerant gas and the cooling water are the same. Therefore, the setting of the two-way cooling valve 13 and the three-way valve 17 is the same as that shown in FIG. 9. When the battery cooling is started during the cooling operation, the two-way cooling valve 13 and the three-way valve 17 are set. You do not need to change the settings. Incidentally, there is no need to change the setting of the air mixing plate 22.

Also in the case of performing battery cooling during the cooling operation, the refrigerant gas which has been compressed by the electric compressor 11 to have a high temperature and a high pressure is supplied to the indoor condenser 12 and flows into the outdoor condenser 15 via the cooling two-way valve 13. I do. The high-pressure refrigerant gas that has been radiated and cooled by the outdoor condenser 15 is decompressed and expanded by the second expansion valve 16, so that the temperature further decreases. The low-temperature refrigerant gas thus generated is divided into two at the downstream of the three-way valve 17, and one refrigerant gas flows into the accumulator 19 via the evaporator 18. The other refrigerant gas flows from the battery cooling two-way valve 42 through the battery cooling refrigerant pipe 44 to the battery cooling heat exchanger 41, and then flows into the accumulator 19.
In the battery cooling heat exchanger 41, the low-temperature refrigerant gas supplied in this way exchanges heat with the cooling water circulating in the cooling water pipe 45 by the cooling water pump 43 to generate cold water. 50 is cooled.

  As described above, when battery cooling occurs during the cooling operation (S202: yes in FIG. 7), a part of the refrigerant gas that has been flowing from the three-way valve 17 to the evaporator 18 until then is used for battery cooling. By diverting the refrigerant into the refrigerant pipe 44, the battery is cooled. For this reason, if the battery cooling is simply started, the supply of the refrigerant gas for the cooling operation that has been performed up to that point is insufficient. Therefore, in order to increase the flow rate of the refrigerant gas pumped by the electric compressor 11, the rotation speed Rc of the electric compressor 11 is increased.

Therefore, when battery cooling occurs during the cooling operation (S202: yes), first, the rotation speed for battery cooling is added to the rotation speed Rc of the electric compressor 11 during the cooling operation (S205). . Then, it is determined whether or not the obtained addition value is higher than the maximum rotation speed Rmax of the electric compressor 11 (S206).
As a result, when the added value is larger than the maximum rotation speed Rmax (S206: yes), the maximum rotation speed Rmax is set as the target rotation speed Rm of the electric compressor 11 instead of the added value (S207), and then the battery cooling is performed. The storage flag is set to ON (S209). As described above, the battery cooling storage flag is a flag indicating whether or not the occurrence of battery cooling is stored. The state where the battery cooling storage flag is ON indicates that the occurrence of battery cooling is stored. ing.
Thereafter, the battery cooling two-way valve 42 is opened, the cooling water pump 43 is driven (S210), and the electric compressor 11 is driven at the target rotation speed Rm to cool the battery of the secondary battery 50. It starts (S211).

On the other hand, when the added value obtained by adding the battery cooling rotation speed to the rotation speed Rc of the electric compressor 11 during the cooling operation is smaller than the maximum rotation speed Rmax (S206: no), the addition value is set to the electric compressor 11 Is set as the target rotation speed Rm (S208).
In this case, the battery cooling two-way valve 42 is opened and the cooling water pump 43 is driven without setting the battery cooling storage flag to ON (S210), and then the electric compressor 11 is rotated to the target rotation speed. By driving at the speed Rm, battery cooling of the secondary battery 50 is started (S211). When the added value is smaller than the maximum rotation speed Rmax (S206: no), the reason why the battery cooling storage flag is not set to ON in spite of performing the battery cooling will be described later in detail.

As described above, when the electric compressor 11 is driven at the target rotation speed Rm (S211), it is determined whether the battery temperature of the secondary battery 50 has decreased to a predetermined target temperature (S212). As a result, when the battery temperature has not decreased to the target temperature (S212: no), the battery cooling is continued as it is, but when the battery temperature decreases to the target temperature (S212: yes), the two-way valve 42 for battery cooling 42 Is closed and the cooling water pump 43 is stopped (S213 in FIG. 8). By doing so, battery cooling is stopped.
After that, the condition when battery cooling occurs (that is, battery cooling occurrence condition) is transmitted to an external server (S214). As described above with reference to FIG. 2, the wireless communication device 8 is connected to the air-conditioning control device 100, and transmits data to an external server using the wireless communication device 8.

  FIG. 11 exemplifies a battery cooling occurrence condition transmitted to an external server. In the illustrated example, the battery cooling occurrence conditions include the air conditioning operation of the air conditioner 10 when the battery cooling occurs, the date and time of starting and ending the battery cooling, the indoor temperature when the battery cooling occurs, the outdoor temperature, the running speed of the vehicle, and the vehicle speed. Information such as the elapsed time from the start of travel (elapsed time from the start of the engine for an engine-equipped vehicle) and the mileage from the start of travel of the vehicle (the mileage from the start of the engine for an engine-equipped vehicle) Send to server.

Of these pieces of information, the indoor temperature, the outdoor temperature, and the running speed of the vehicle when battery cooling occurs are stored when the operating conditions of the air conditioner 10 are stored in S201 in FIG. Keep it.
In addition, as shown in FIG. 11, there are three cases of the air-conditioning operation of the air-conditioning apparatus 10, such as “during heating”, “during low-load cooling”, and “during high-load cooling”. Is stored when the operating condition of the air conditioner 10 is stored in S201 of FIG. Further, “during low-load cooling” or “during high-load cooling” is stored based on the determination result in S206 of FIG. That is, when the value obtained by adding the battery cooling rotation speed to the current rotation speed Rc of the electric compressor 11 is less than the maximum rotation speed Rmax of the electric compressor 11 (S206: no), the air conditioning operation of the air conditioner 10 is performed. Is stored as "low-load cooling", and conversely, if it is higher than the maximum rotation speed Rmax (S206: yes), it is stored as "high-load cooling".
Further, in the present embodiment, information collected by the navigation device 7 is acquired for the elapsed time and the traveling distance from the start of traveling of the vehicle. Of course, instead of acquiring from the navigation device 7, the air conditioning control device 100 may acquire from the vehicle control device.

  As the battery cooling occurrence condition, the vehicle position information at the time of battery cooling occurrence may be acquired from the navigation device 7. Furthermore, if it is possible to acquire from the navigation device 7, the mode of the road (for example, whether or not it is paved, whether or not it is a slope, the gradient of the road, etc.) is also acquired as the battery cooling occurrence condition. Is also good.

  By accumulating the transmitted information in an external server, it becomes possible to clarify the conditions under which battery cooling occurs, and it is possible to improve the development efficiency of the battery cooling device 40 and the air conditioning system 1. Become.

As described above, when the battery cooling occurrence condition is transmitted to the external server (S214 in FIG. 8), it is determined whether the battery cooling storage flag is set to ON (S215). As described above, the battery cooling storage flag is a flag indicating whether to store the battery cooling.
As a result, when the battery cooling storage flag is set to ON (S215: yes), predetermined information pre-selected from various types of information transmitted to the external server indicates occurrence of battery cooling. The information is stored in a memory (not shown) of the air conditioning control device 100 (S216). In the example shown in FIG. 11, from the conditions at the time of battery cooling occurrence (that is, battery cooling occurrence conditions), two pieces of information of the air-conditioning operation of the air conditioner 10 and the start date and time of battery cooling are determined. It is stored as information to be indicated.

On the other hand, when the battery cooling storage flag is not set to ON (S215: no), information indicating the occurrence of battery cooling is not stored. Therefore, the information indicating the battery cooling occurrence condition is transmitted to the external server every time the battery cooling occurs, but the information indicating the occurrence of the battery cooling indicates that the battery cooling storage flag is ON even if the battery cooling occurs. If it is not set, it will not be stored.
For example, in the example shown in FIG. 11, battery cooling occurrence conditions accompanying the occurrence of battery cooling for nine times are shown. Among them, the first battery cooling displayed at the top is the air conditioner 10. Battery cooling occurs during the air-conditioning operation of. Then, as described above with reference to FIG. 7, when battery cooling occurs during the heating operation (S202: no), the battery cooling storage flag is set to ON (S209). Therefore, for the first battery cooling, two pieces of information of the air conditioning operation when battery cooling occurs and the date and time of battery cooling start are stored in the memory of the air conditioning control device 100 as information indicating the occurrence of battery cooling. In FIG. 11, two pieces of information of the air conditioning operation at the time of the occurrence of the battery cooling in the first battery cooling and the date and time of the start of the battery cooling are surrounded by a broken-line rectangle. This indicates that the information is stored as indicated information.
As for the second battery cooling in FIG. 11, information indicating the occurrence of battery cooling is stored in the same manner as the first battery cooling.

In addition, as for the third battery cooling shown third from the top in FIG. 11, battery cooling occurs during low-load cooling (that is, when “no” is determined in S206 of FIG. 7). If the determination at S206 is "no", the battery cooling storage flag remains OFF. Therefore, for the third battery cooling, information indicating the occurrence of battery cooling is not stored in the memory of the air conditioning control device 100.
As for the fourth battery cooling in FIG. 11, information indicating the occurrence of battery cooling is not stored, as in the third battery cooling.

Further, regarding the fifth battery cooling shown in the fifth from the top in FIG. 11, battery cooling occurs during high-load cooling (that is, when “yes” is determined in S206 of FIG. 7). If it is determined "yes" in S206, the battery cooling storage flag is set to ON (see S209). Therefore, as for the fifth battery cooling, as shown by the dashed rectangle in FIG. 11, two pieces of information, that is, the air conditioning operation when battery cooling occurs and the date and time of battery cooling start, indicate that battery cooling has occurred. It is stored as the information indicating.
Here, as the information indicating the occurrence of battery cooling, the date and time at the start of battery cooling will be described in addition to the air conditioning operation at the time of battery cooling occurrence. May be stored. Alternatively, not the date and time at the start of battery cooling but the date and time at the end of battery cooling may be stored.

  In this way, the information indicating the occurrence of the battery cooling is stored in a part of the generated battery cooling (five times of the nine battery coolings in the example shown in FIG. 11). Moreover, even when the occurrence of the battery cooling is stored, the stored information is only a part of the battery cooling occurrence condition transmitted to the external server. Therefore, even when the battery cooling occurs frequently, the occurrence of the battery cooling can be stored without greatly consuming the memory capacity of the air conditioning control device 100.

When the occurrence of battery cooling is stored as described above (S216), the battery cooling storage flag is set to OFF (S217). Also, when the occurrence of battery cooling is not stored, the battery cooling storage flag is set to OFF (S217).
Then, after the operation state of the air conditioner 10 is returned to the state before the occurrence of battery cooling (S218), the battery cooling processing shown in FIGS. 7 and 8 is terminated, and the air conditioning control processing shown in FIGS. Return to.

  As described above in detail, when it is determined that the battery of the secondary battery 50 needs to be cooled during the execution of the air conditioning control process (S117 in FIG. 4: yes), the battery cooling process (S200) is started. Then, as described above with reference to FIGS. 7 and 8, the battery cooling process is continued until the battery temperature of the secondary battery 50 decreases to the predetermined target temperature (see S212 in FIG. 7). Accordingly, while the battery is being cooled, the air conditioning operation performed by the air conditioner 10 up to that time is interrupted.

For example, when the battery cooling occurs during the heating operation of the air conditioner 10, the operation state of the air conditioner 10 switches from the operation state illustrated in FIG. 6 to the operation state illustrated in FIG. The operation state shown in FIG. 9 is an operation state of a cooling operation in which the heat of air is absorbed by the evaporator 18 as a whole and the heat is radiated by the outdoor condenser 15. Therefore, the heating operation cannot be performed during battery cooling.
When battery cooling occurs during the air-conditioning apparatus 10 in the heating operation, the operation state of the air-conditioning apparatus 10 switches from the operation state shown in FIG. 5 to the operation state shown in FIG. In this case, there is no significant difference in the overall operation of the air conditioner 10, but in FIG. 5, all the refrigerant gas passing through the three-way valve 17 is supplied to the evaporator 18, whereas in FIG. Some of the refrigerant gas is diverted to the battery cooling refrigerant pipe 44. For this reason, in order to avoid a situation in which the refrigerant gas supplied to the evaporator 18 runs short, it is necessary to increase the rotation speed Rc of the electric compressor 11 to increase the flow rate of the refrigerant gas to be pumped. However, since the rotation speed Rc of the electric compressor 11 cannot be higher than the maximum rotation speed Rmax, the refrigerant gas supplied to the evaporator 18 becomes insufficient, and a situation occurs in which the cooling capacity is reduced.

  Then, when these situations (that is, a situation where heating cannot be performed during the heating operation or a situation where the cooling capacity decreases during the cooling operation) occur, the occupant of the vehicle considers that a malfunction has occurred in the air conditioner 10. As a result, the air conditioner 10 may be brought in for inspection and repair. Of course, since the air conditioner 10 has no problem, no matter how much inspection is performed, the cause of the malfunction cannot be found, and the vehicle is returned to the owner. In this case, not only a large amount of trouble is required for useless inspection, but also because the cause of the malfunction cannot be found, the owner of the vehicle may have a distrust of the ability of the inspection and repair.

On the other hand, in the air-conditioning control device 100 of the present embodiment described above, when battery cooling occurs during the heating operation (S202 in FIG. 7: no), or when the battery cooling occurs during the cooling operation under a high load. In this case (S206: yes), as a result of setting the battery cooling storage flag to ON (S209), the occurrence of battery cooling is stored in the memory (S216 in FIG. 8). For this reason, when the battery is brought in for inspection and repair of the air conditioner 10, the history of battery cooling stored in the memory of the air conditioning controller 100 is read to determine whether the cause of the battery for inspection and repair is battery cooling. Can be determined.
In addition, the information stored as the history of battery cooling includes the air conditioning operation when battery cooling occurs and the date or date and time when battery cooling started. Therefore, by confirming such information, it is possible to easily determine whether or not the malfunction of the air conditioning is caused by the occurrence of battery cooling. As a result, it is possible to avoid a situation in which a large amount of time is spent for useless inspection, or a situation in which the owner of the vehicle is distrusted with the ability of the inspection and repair.

In the above description, when battery cooling occurs during the cooling operation under a low load (S206: no in FIG. 7), the battery cooling storage flag is kept OFF, and accordingly, the battery cooling occurs. Has been described as not being stored in the memory. The reason is as follows.
First, when the battery cooling occurs during the low-load cooling operation, the rotation speed Rc of the electric compressor 11 is increased even if a part of the refrigerant gas is diverted to the battery cooling refrigerant pipe 44. This can compensate for a decrease in the refrigerant gas supplied to the evaporator 18. If the decrease in the refrigerant gas supplied to the evaporator 18 can be compensated for, the cooling capacity does not change before and after the battery cooling occurs. This is because it is considered that no repairs will be brought.
However, even if the rotation speed Rc of the electric compressor 11 is increased, it is not always possible to accurately compensate for the refrigerant gas that flows into the battery cooling refrigerant pipe 44. Therefore, before and after battery cooling occurs, the flow rate of the refrigerant gas supplied to the evaporator 18 may change, and the cooling capacity may change. For this reason, even when the battery cooling occurs during the low-load cooling operation, the occurrence of the battery cooling may be stored in the memory.
In this way, even if the occupant of the vehicle notices a slight change in the cooling capacity and is brought in for inspection and repair of the air conditioner 10, it is possible to avoid a situation in which a great deal of time and effort is required for unnecessary inspections. Become.

D. Modifications:
In the above-described embodiment, when the battery cooling occurs during the heating operation or when the battery cooling occurs during the low-load cooling operation, the occurrence of the battery cooling is stored. This makes it possible to easily cope with the case where the battery cooling is mistakenly taken as a malfunction of the air conditioner 10 and brought into the inspection and repair.
However, even if battery cooling occurs during heating operation or cooling operation at low load, if the vehicle occupant is aware of the occurrence of battery cooling, it may be mistakenly taken as a malfunction of the air conditioner 10 and brought into inspection and repair. It is considered that the nature is low. Therefore, in such a case, it is not necessary to store the occurrence of battery cooling.
Therefore, as described below, the air conditioning control device 150 of the modified example notifies the occupant of the vehicle that battery cooling has occurred to the occupant of the vehicle. Stores the occurrence of battery cooling.

  FIG. 12 shows the internal structure of an air conditioning control device 150 according to a modification. The air conditioning control device 150 according to the modification shown in FIG. 12 is different from the air conditioning control device 100 according to the present embodiment described above with reference to FIG. 2 in that a confirmation request output unit 113 and a confirmation operation detection unit 114 are provided. Is very different. Hereinafter, an air conditioning control device 150 according to a modified example will be described with a focus on differences from the above-described air conditioning control device 100 of the present embodiment.

  As shown in FIG. 12, an air conditioning control device 150 according to a modification also includes an air conditioning operation acquisition unit 101, a target temperature acquisition unit 102, an indoor temperature acquisition unit 103, an outdoor temperature acquisition unit 104, and a solar radiation amount acquisition unit 105. Operation state control unit 106, battery temperature acquisition unit 107, cooling necessity determination unit 108, battery cooling unit 109, running state acquisition unit 110, cooling condition collection unit 111, cooling occurrence storage unit 112, It has. The operation of the other “units” except for the battery cooling unit 109 and the cooling condition collecting unit 111 is the same as that of the air conditioning control device 100 of the present embodiment described above, and thus the description is omitted here.

Also in the case of the modified example, the battery cooling unit 109 opens the battery cooling two-way valve 42 and drives the cooling water pump 43 to cool the battery, as in the case of the present embodiment described above. In addition, when battery cooling is started, the fact is also output to the operation state control unit 106 and the cooling condition collection unit 111.
In addition, when the battery cooling unit 109 of the modified example starts battery cooling, it also outputs the fact to the confirmation request output unit 113.
The confirmation request output unit 113 is connected to the touch panel 2 and, upon receiving information from the battery cooling unit 109 indicating that battery cooling is to be started, notifies the occupant of the vehicle of the start of battery cooling and confirms the notification. Is output to the touch panel 2.

  FIG. 13 illustrates a screen for notifying the start of battery cooling displayed on touch panel 2. In the illustrated screen, the fact that the battery cooling is to be started is displayed, and the fact that the air conditioning capacity is temporarily reduced during the battery cooling and that the confirmation button is pressed are displayed. The occupant of the vehicle recognizes that the battery cooling is started by displaying such a screen, and recognizes that the air conditioning capacity may temporarily decrease during the battery cooling. Then, when the display is confirmed, a confirmation operation of pressing the confirmation button is performed.

As shown in FIG. 12, the touch panel 2 is also connected to the confirmation operation detection unit 114. When the confirmation button is pressed on the touch panel 2, the confirmation operation detection unit 114 detects that the confirmation button is pressed, and the cooling condition collection unit Output to 111.
Similarly to the cooling condition collecting unit 111 of the present embodiment, the cooling condition collecting unit 111 of the modified example collects various conditions when battery cooling occurs (see FIG. 11), and the wireless communication device 8 And send it to an external server. Also, it is determined whether or not to store the occurrence of battery cooling, and if it is determined to be stored, information selected from the collected information is output to the cooling generation storage unit 112.

Here, the cooling condition collecting unit 111 of the modified example checks whether or not the confirmation button has been pressed on the touch panel 2 when determining whether to store the occurrence of battery cooling. When the confirmation button is pressed before the predetermined confirmation time elapses after the image for notifying the start of the battery cooling illustrated in FIG. 13 is displayed on the screen of the touch panel 2, It is determined that there is no need to store the occurrence of cooling.
In this way, the occupant of the vehicle recognizes that battery cooling occurs and that the air conditioning capacity may temporarily decrease with the occurrence of battery cooling. It is possible to avoid a situation where the occurrence of battery cooling is memorized even when the possibility of being brought in for inspection and repair is low.
In the following, a description will be given of a process in which the air conditioning control device 150 of the above-described modified example performs battery cooling of the secondary battery 50 and stores occurrence of battery cooling when necessary.

FIGS. 14 and 15 show a flowchart of the battery cooling process (S250) performed by the air conditioning control device 150 of the modified example. In this process, when it is determined that the battery needs to be cooled in the air conditioning control process described above with reference to FIGS. 3 and 4 (S117: yes in FIG. 4), the battery cooling process (S200 in the present embodiment) described above is performed. ).
The battery cooling process (S250) of this modified example is different from the battery cooling process of the present embodiment described above with reference to FIGS. 7 and 8 in that an image (see FIG. 13) to start battery cooling is displayed. And a point that it is determined whether or not the confirmation button has been pressed during a period from when the image is displayed until a predetermined confirmation time has elapsed. Hereinafter, the battery cooling process of the modified example will be briefly described focusing on these differences.

As shown in FIG. 14, even in the case of the battery cooling process (S250) of the modified example, when the process is started, first, the current operating condition of the air conditioner 10 (the air conditioning operation is either the cooling operation or the heating operation). Or the rotation speed Rc of the electric compressor 11) is stored (S251). Subsequently, it is determined whether or not the current air conditioning operation is the cooling operation (S252). If the air conditioning operation is the heating operation (S252: no), as described above with reference to FIG. The setting of the valve 13 and the three-way valve 17 is switched to the setting of the cooling operation state (S253).
Then, the rotation speed for cooling the battery is set as the target rotation speed Rm of the electric compressor 11 (S254).

Thereafter, in the battery cooling process of the modified example, after displaying an image (see FIG. 13) for notifying the start of battery cooling on the screen of the touch panel 2 (S259), the confirmation button displayed on the screen of the touch panel 2 is pressed. It is determined whether the button has been pressed (S260).
Note that, in the battery cooling process of the modified example, the image illustrated in FIG. 13 is displayed on the screen of the touch panel 2, but it is possible to notify the occupant of the vehicle of the occurrence of battery cooling. For example, the mode of notification is not limited to display of an image. For example, the notification may be made by outputting a predetermined sound from a speaker (not shown).

  As a result, if the confirmation button has not been pressed (S260: no), it is determined whether or not a predetermined confirmation time (for example, 5 seconds) has elapsed since the image was displayed on the screen of the touch panel 2 (S261). If the confirmation time has not elapsed (S261: no), it is determined again whether the confirmation button has been pressed (S260).

If such determination is repeated, the confirmation button will be pushed or the confirmation time will elapse without the confirmation button being pushed. Therefore, when the confirmation time has elapsed (S261: yes), the battery cooling storage flag is set to ON (S262). As described above, the state in which the battery cooling storage flag is set to ON indicates that the occurrence of battery cooling is stored.
On the other hand, if the confirmation button is pressed before the confirmation time has elapsed (S260: yes), the battery cooling storage flag is kept set to OFF. As described above, the state where the battery cooling storage flag is set to OFF indicates that the occurrence of battery cooling is not stored.
When the battery cooling storage flag is set in this manner, the battery cooling two-way valve 42 is opened, the cooling water pump 43 is driven (S263 in FIG. 15), and the electric compressor 11 is driven at the target rotation speed Rm (S263). S264) starts the battery cooling.

On the other hand, when the air-conditioning operation at the time when it becomes necessary to cool the battery is the cooling operation (S252: yes in FIG. 14), the rotation speed Rc of the electric compressor 11 during the cooling operation is reduced to the battery cooling speed. The rotation speed is added (S255), and it is determined whether or not the obtained addition value is greater than the maximum rotation speed Rmax of the electric compressor 11 (S256).
As a result, when the added value is larger than the maximum rotation speed Rmax (S256: yes), the maximum rotation speed Rmax is set as the target rotation speed Rm of the electric compressor 11 (S257).

Subsequently, after displaying an image notifying the start of battery cooling on the screen of the touch panel 2 (S259), it is determined whether or not the confirmation button displayed on the screen of the touch panel 2 has been pressed (S260). If the confirmation button has not been pressed (S260: no), it is determined whether or not a predetermined confirmation time (for example, 5 seconds) has elapsed since the image was displayed on the screen of the touch panel 2 (S261). Thus, the determinations in S260 and S261 are repeated until the confirmation button is pressed (S260: yes) or the confirmation time elapses without the confirmation button being pressed (S261: yes).
As a result, when the confirmation time has elapsed (S261: yes), the battery cooling storage flag is set to ON (S262). On the other hand, if the confirmation button is pressed before the confirmation time has elapsed (S260: yes), the battery cooling storage flag is kept set to OFF. Thereafter, the battery cooling two-way valve 42 is opened, the cooling water pump 43 is driven (S263 in FIG. 15), and the electric compressor 11 is driven at the target rotation speed Rm (S264), thereby cooling the battery. To start.

On the other hand, if the added value obtained by adding the battery cooling rotation speed to the rotation speed Rc of the electric compressor 11 during the cooling operation is smaller than the maximum rotation speed Rmax (S256: no), the addition value is calculated. Is set as the target rotation speed Rm (S258).
In this case, the battery cooling two-way valve 42 is opened and the cooling water pump 43 is displayed without displaying an image notifying that the battery is to be cooled or setting the battery cooling storage flag to ON. Is driven (S263 in FIG. 15), the electric compressor 11 is driven at the target rotation speed Rm to start battery cooling of the secondary battery 50 (S264).

Subsequent processing is the same as the battery cooling processing of the present embodiment described above in the battery cooling processing of the modified example. That is, the battery cooling is continued until the battery temperature of the secondary battery 50 decreases to the predetermined target temperature. When the battery temperature decreases to the target temperature (S265: yes), the battery cooling two-way valve 42 is closed. At the same time, the cooling water pump 43 is stopped (S266).
Then, a condition when battery cooling occurs (that is, battery cooling occurrence condition) is transmitted to an external server (S267). If the battery cooling storage flag is set to ON (S268: yes), the battery Information indicating the occurrence of cooling is stored in a memory (not shown) of the air conditioning control device 100 (S269).
Then, after the battery cooling storage flag is set to OFF (S270), the operating state of the air conditioner 10 is returned to the state before the occurrence of battery cooling (S271), and the battery according to the modified example shown in FIGS. Finish the cooling process.

In the battery cooling process of the modified example described above, when battery cooling occurs during the heating operation (S252: no in FIG. 14) or when battery cooling occurs during the cooling operation under a high load (S256: yes) ) Also notifies the occurrence of battery cooling (S259). If the confirmation button is pressed before the confirmation time elapses (S260: yes) in response to the notification, the occupant of the vehicle informs the user that battery cooling will occur or that battery cooling will occur. It can be considered that the user recognizes that the air conditioning capacity temporarily decreases. Therefore, there is no possibility that a temporary malfunction of the air conditioner is misunderstood as an abnormality of the air conditioner 10 and the air conditioner 10 is brought in for inspection and repair. Therefore, it is not necessary to memorize the occurrence of the battery cooling.
On the other hand, if the confirmation button is not pressed even after the confirmation time elapses with respect to the display for notifying the occurrence of battery cooling (S260: no), it is determined that the occurrence of battery cooling has been notified. , The occupants of the vehicle may not be aware. Therefore, in this case, it is necessary to memorize the occurrence of the battery cooling because there is a risk that the malfunction of the temporary air conditioning may be misunderstood as an abnormality of the air conditioner 10 and brought into the inspection and repair. Therefore, the battery cooling storage flag is set to ON (S262), and the occurrence of battery cooling is stored in the memory (S269 in FIG. 15).

As described above, in the air conditioning control device 150 of the modified example, even when battery cooling occurs during the heating operation in the air conditioning device 10 or when battery cooling occurs during the cooling operation under a high load, the battery cooling When the occupant of the vehicle notices that the occurrence of the battery cooling, the occurrence of the battery cooling is not stored. For this reason, the number of times that the occurrence of battery cooling is stored is reduced, and the memory capacity required for storage can be saved.
Further, since the occurrence of battery cooling is notified to the occupant of the vehicle, understanding of battery cooling gradually progresses. As a result, even if a temporary malfunction of the air conditioner occurs due to the occurrence of the battery cooling, it is possible to reduce a situation in which the air conditioner 10 is misunderstood as an abnormality of the air conditioner 10 and is brought in for inspection and repair.

  Although the present embodiment and the modified examples have been described above, the present invention is not limited to the above-described embodiment and modified examples, and can be implemented in various modes without departing from the gist of the present invention.

1: air conditioning system, 2: touch panel, 8: wireless communication device,
10 ... air conditioner, 11 ... electric compressor, 12 ... indoor condenser,
13: two-way valve for cooling, 14: first expansion valve, 15: outdoor condenser,
16: second expansion valve, 17: three-way valve, 18: evaporator,
19: accumulator, 40: battery cooling device, 41: heat exchanger for battery cooling,
42: two-way valve for battery cooling 43: cooling water pump 44: refrigerant pipe for battery cooling
45: cooling water pipe, 50: secondary battery, 50s: battery temperature sensor,
100 air conditioning control device 101 air conditioning operation acquisition unit 102 target temperature acquisition unit
103: indoor temperature acquisition unit; 104: outdoor temperature acquisition unit; 105: solar radiation amount acquisition unit
106: operation state control unit 107: battery temperature acquisition unit 108: cooling necessity determination unit
109: battery cooling unit, 110: running state acquisition unit, 111: cooling condition collection unit,
112: cooling occurrence storage unit, 113: confirmation request output unit, 114: confirmation operation detection unit
150 ... Air-conditioning control device.

Claims (9)

A vehicle including an air conditioner (10) for adjusting the air temperature in a vehicle cabin by using a temperature change when a refrigerant gas compressed by a compressor (11) is decompressed and expanded, and a secondary battery (50) An air conditioning control device (100, 150) mounted on the air conditioner to control the operation of the air conditioning device,
An indoor temperature acquisition unit (103) for acquiring an indoor temperature in the vehicle interior;
A target temperature acquisition unit (102) for acquiring a target temperature set for the room temperature;
An operation state control unit (106) that controls an operation state of the air conditioner based on the room temperature and the target temperature;
A battery temperature acquisition unit (107) for acquiring a battery temperature of the secondary battery;
A cooling necessity judging unit (108) for judging necessity of battery cooling of the secondary battery based on the battery temperature;
A battery cooling unit (109) that cools the secondary battery by utilizing a temperature change of the refrigerant gas when the battery cooling is required;
A cooling generation storage unit (112) for determining whether an operation state of the air conditioner satisfies a predetermined condition when the battery is cooled, and storing the occurrence of the battery cooling if the predetermined condition is satisfied; equipped with a door,
The operation state control unit, as the operation state of the air conditioner, can be controlled to a cooling operation operation state of reducing the indoor temperature using a decrease in the temperature of the refrigerant gas when the decompression and expansion,
The cooling occurrence storage unit stores the occurrence of the battery cooling assuming that the operation state corresponds to the predetermined condition when the battery cooling occurs during the cooling operation operation state.
An air conditioning control device characterized by the above-mentioned . The air conditioning control device according to claim 1,
The operating state control unit, as the operating state of the air conditioner in the cooling operation state, also determines a cooling capacity to be generated in the air conditioner,
The cooling occurrence storage unit, the cooling capacity to be generated by the air conditioner, when the margin for the maximum cooling capacity of the air conditioner is less than or equal to a predetermined amount, the operation state as the one corresponding to the predetermined condition, An air conditioning control device characterized by storing occurrence of battery cooling. The air conditioning control device according to claim 2,
The operating state control unit, as the cooling capacity of the air conditioner, determines the rotation speed of the compressor ,
When the rotational speed of the compressor is less than or equal to a predetermined amount with respect to the maximum rotational speed of the compressor , the cooling occurrence storage unit determines that the operating state corresponds to the predetermined condition and determines that the battery cooling An air-conditioning control device characterized by storing occurrence of air-conditioning. Claims 1 the air conditioning control device according to any one of claims 3,
The operating state control unit, as an operating state of the air conditioner, utilizing the temperature decrease of the refrigerant gas at the time of decompression and expansion, absorbs heat from the air outside the vehicle compartment, and compresses the absorbed refrigerant gas. It is possible to control the heating operation operating state to increase the room temperature using a temperature increase when compressed by the machine,
When the battery cooling occurs during the heating operation state , the cooling occurrence storage unit stores the occurrence of the battery cooling assuming that the operation state corresponds to the predetermined condition. Control device. The air conditioning control device (150) according to any one of claims 1 to 4, wherein:
A confirmation request output unit (113) that outputs a request for a confirmation operation to the driver of the vehicle when the secondary battery is cooled with a battery;
A confirmation operation detection unit (114) for detecting the confirmation operation in response to the request;
With
The cooling occurrence storage unit stores the occurrence of the battery cooling when the operation state of the air conditioner satisfies the predetermined condition and the confirmation operation is not detected in response to the confirmation operation request. An air conditioning control device characterized by the above-mentioned. The air conditioning control equipment according to any one of claims 1 to 5,
The air-conditioning control device according to claim 1, wherein the cooling occurrence storage unit stores information including a date when the battery cooling occurs . The air conditioning control device according to 請 Motomeko 6,
The air-conditioning control device, wherein the cooling occurrence storage unit stores information including a date when the battery cooling occurs and an operation state of the air-conditioning device. Claims 1 the air conditioning control device according to any one of claims 7,
A traveling state acquisition unit (110) for acquiring a traveling state of the vehicle;
When the battery cooling occurs, a cooling condition collecting unit (111) that acquires information including a running state of the vehicle as a battery cooling occurrence condition and transmits the information to the outside of the vehicle.
Air conditioning control device comprising a.   A vehicle including an air conditioner (10) for adjusting the air temperature in a vehicle cabin by using a temperature change when a refrigerant gas compressed by a compressor (11) is decompressed and expanded, and a secondary battery (50) An air conditioning control method applied to control the operation of the air conditioner,
  A step (S102) of acquiring an indoor temperature in the vehicle interior;
  A step of acquiring a target temperature set for the room temperature (S101);
  Controlling an operation state of the air conditioner based on the room temperature and the target temperature (S105 to S115);
  Obtaining a battery temperature of the secondary battery (S116);
  A step (S117) of determining whether battery cooling of the secondary battery is necessary based on the battery temperature;
  When the battery cooling is required, a step of battery cooling the secondary battery using a change in the temperature of the refrigerant gas (S211 and S264);
  A step (S202, S206, S252, S256) of determining whether an operation state of the air conditioner satisfies a predetermined condition when cooling the battery;
  Storing the occurrence of the battery cooling when the predetermined condition is satisfied (S216, S269);
  With
  The step of controlling the operation state of the air conditioner can be controlled as a controllable operation state to a cooling operation operation state in which the indoor temperature is reduced by using a decrease in the temperature of the refrigerant gas when the pressure is reduced and expanded. Process
  The step of determining whether the operating state of the air conditioner meets a predetermined condition includes determining that the operating state corresponds to the predetermined condition when the battery cooling occurs during the cooling operation state. Process
  An air-conditioning control method comprising:

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