vehicle

Abstract

The present invention provides a vehicle that can appropriately cool the battery during external charging and can suppress the situation in which the output of the battery is limited when the vehicle is driven immediately after the battery is charged, even when a single refrigeration system is used to cool the vehicle cabin and the battery. The vehicle includes: a first temperature control circuit that cools the vehicle cabin; a battery that can be externally charged; a second temperature control circuit that cools the battery; a refrigerator that performs heat exchange between a first medium of the first temperature control circuit and a second medium of the second temperature control circuit; and a control device that controls the first and second temperature control circuits. The control device cools the battery through the second temperature control circuit during charging of the battery by an external power source, and cools the vehicle cabin through the first temperature control circuit when the storage amount of the battery is greater than a specified value and the vehicle cabin temperature correlation value is greater than a threshold value.

Description

Technical Field

[0001] The present invention relates to vehicles such as electric vehicles. Background Art

[0002] In recent years, vehicles that charge batteries using power supplied from an external power source have been known (for example, Patent Document 1). It is described that in the vehicle described in Patent Document 1, when external charging of the battery is not completed according to the charging schedule, air conditioning control called pre-air conditioning is performed.

[0003] On the other hand, attempts have been made to cool both the vehicle interior and the battery using one refrigeration system mounted on the vehicle.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: International Publication No. 2012 / 153399 Summary of the invention

[0007] Problems to be solved by the invention

[0008] If the pre-air conditioner described in Patent Document 1 is applied to a vehicle that uses a single refrigeration system to cool both the cabin and the battery, the battery may not be properly cooled, resulting in a limited output of the battery, depending on the use of the air conditioner for cooling the cabin. For example, when the temperature in the cabin rises during external charging of the battery and the vehicle is driven immediately after the battery is charged, if most of the cooling capacity of the air conditioner is used for cooling the cabin, the battery may not be properly cooled, resulting in a limited output of the battery. On the other hand, if the cabin is actively cooled during external charging of the battery, the battery may not be properly cooled.

[0009] The present invention provides a vehicle which can properly cool the battery during external charging even when a single refrigeration system is used to cool the vehicle cabin and the battery, and can suppress the situation in which the battery output is limited when the vehicle is driven immediately after the battery is charged.

[0010] Solutions to Solve Problems

[0011] The present invention provides a vehicle comprising:

[0012] Car room;

[0013] a first temperature control circuit including a compressor, a condenser, an expansion valve, and an evaporator, and cooling the vehicle interior;

[0014] A storage battery capable of receiving electricity from an external power source for charging;

[0015] a second temperature regulating circuit, which cools the battery;

[0016] a heat exchange portion for performing heat exchange between a first medium flowing in the first temperature adjustment circuit and a second medium flowing in the second temperature adjustment circuit; and

[0017] A control device controls the first temperature regulating loop and the second temperature regulating loop, wherein:

[0018] The control device, when the external power source is charging the storage battery,

[0019] The battery is cooled by the second temperature control circuit, and the vehicle interior is cooled by the first temperature control circuit when the amount of power stored in the battery is equal to or greater than a predetermined value and a vehicle interior temperature-related value associated with the temperature of the vehicle interior is equal to or greater than a threshold value.

[0020] In addition, the present invention provides a vehicle comprising:

[0021] Car room;

[0022] a first temperature control circuit including a compressor, a condenser, an expansion valve, and an evaporator, and cooling the vehicle interior;

[0023] A storage battery capable of receiving electricity from an external power source for charging;

[0024] a second temperature regulating circuit, which cools the battery;

[0025] a heat exchange portion for performing heat exchange between a first medium flowing in the first temperature adjustment circuit and a second medium flowing in the second temperature adjustment circuit; and

[0026] A control device controls the first temperature regulating loop and the second temperature regulating loop, wherein:

[0027] The control device, when the external power source is charging the storage battery,

[0028] During a period in which the battery is charged under constant current control, the first temperature control circuit is prohibited from cooling the vehicle interior, and

[0029] After charging of the battery is switched from the constant current control to the constant voltage control, the first temperature regulating circuit is allowed to cool the vehicle interior.

[0030] Effects of the Invention

[0031] According to the present invention, even when a single refrigeration system is used to cool the vehicle interior and the battery, the battery can be properly cooled during external charging. In addition, the battery output can be prevented from being limited when the vehicle is driven immediately after the battery is charged. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a circuit diagram showing the configuration of a temperature control circuit included in a vehicle according to an embodiment of the present invention.

[0033] Figure 2 Yes means Figure 1 1 is a timing chart showing an example of control during charging and at the start of driving of the temperature control circuit.

[0034] Figure 3 This is a graph showing the relationship between the storage amount of the battery and the charging current during external charging.

[0035] Figure 4 This is a graph showing the relationship between the amount of electricity stored in a battery during external charging and the amount of heat generated by the battery.

[0036] Figure 5 This is a flowchart showing the processing procedure of the cooling control during charging.

[0037] Description of reference numerals:

[0038] 1 Battery

[0039] 2 Chiller

[0040] 5. Compressor

[0041] 6 Condenser

[0042] 7 Evaporator

[0043] 8 Expansion valve

[0044] C1 First temperature control circuit

[0045] C2 Second temperature control circuit

[0046] CTR Control Unit

[0047] V Vehicle

[0048] SOC1 specified value

[0049] T1 Threshold DETAILED DESCRIPTION

[0050] Below, refer to Figures 1 to 5 One embodiment of the present invention will be described.

[0051] like Figure 1 As shown, the vehicle V includes: a vehicle cabin (not shown); a first temperature control circuit C1, which cools the vehicle cabin; a battery 1, which can be charged using electricity from an external power source; a second temperature control circuit C2, which cools the battery 1; a cold machine 2, which performs heat exchange between a first medium flowing in the first temperature control circuit C1 and a second medium flowing in the second temperature control circuit C2; a drive unit 3 (including a motor, an inverter, etc.), which uses electricity from the battery 1 to drive the vehicle V; a third temperature control circuit C3, which cools the drive unit 3; and a control device CTR, which controls each temperature control circuit C1 to C3.

[0052] The first medium is a liquid medium such as a refrigerant gas that is gasified under a low pressure environment and liquefied under a high pressure environment, and the second medium is a liquid medium such as water, a heat dissipation liquid, a cooling liquid, etc. It should be noted that the third temperature control circuit C3 is formed by configuring a first pump P1, a drive unit 3, and a radiator 4 on a circuit in which the liquid medium circulates, but since it has a low relevance to the present invention, a detailed description is omitted.

[0053] The second temperature control circuit C2 includes: a second pump P2 that circulates the second medium in the circuit; a cold machine 2 that is arranged on the downstream side of the second pump P2 and performs heat exchange between the first medium and the second medium flowing in the first temperature control circuit C1; and a battery 1 that is arranged on the downstream side of the cold machine 2.

[0054] The first temperature control circuit C1 includes: a main flow path C11, which is provided with a compressor 5, a condenser 6, an expansion valve 8, and an evaporator 7 along the flow direction of the first medium; a branch flow path C12, which is branched from the main flow path C11 and connected to the cold machine 2; a first valve V1, which is provided in the main flow path C11 and can cut off the flow of the first medium to the expansion valve 8 and the evaporator 7; a second valve V2, which is provided in the branch flow path C12 and can cut off the flow of the first medium to the cold machine 2; and an expansion valve 9, which is provided between the second valve V2 and the cold machine 2. The compressor 5, the condenser 6, the evaporator 7, and the expansion valve 8 constitute a so-called refrigeration cycle. The refrigeration cycle is only provided in the first temperature control circuit C1, and is not provided in the second temperature control circuit C2. Therefore, in order to use the refrigeration cycle to cool the storage battery 1, heat exchange between the first medium and the second medium via the cold machine 2 is required, and the details will be described later.

[0055] The first valve V1 and the second valve V2 are, for example, electromagnetic on-off valves that can be electromagnetically switched to open and closed, and cut off the inflow of the first medium when closed, and allow the inflow of the first medium when opened. It should be noted that the first valve V1 and the second valve V2 can be normally closed valves or normally open valves. In addition, the first valve V1 and the expansion valve 8 can also be composed of the same valve, and the second valve V2 and the expansion valve 9 can also be composed of the same valve.

[0056] In the first temperature regulating circuit C1, in the first state in which the first valve V1 and the second valve V2 are open and the first medium is allowed to flow into the evaporator 7 and the cold machine 2, the first medium is supplied from the condenser 6 to the evaporator 7 and the cold machine 2. The first medium supplied to the evaporator 7 exchanges heat with the air, and the air cooled by the heat exchange is supplied to the vehicle cabin by a fan (not shown), so that the vehicle cabin is cooled. On the other hand, the first medium supplied to the cold machine 2 exchanges heat with the second medium in the cold machine 2, and the second medium cooled by the heat exchange is supplied to the battery 1, so that the battery 1 is cooled. It should be noted that the first medium cools the air or the second medium in the evaporator 7 and the cold machine 2 by the heat of vaporization when it is vaporized in the expansion valves 8 and 9, and the vaporized liquid medium is restored to a liquid state via the compressor 5 and the condenser 6.

[0057] In addition, in the second state where the first valve V1 is open and the second valve V2 is closed to allow only the first medium to flow into the evaporator 7, the first temperature control circuit C1 supplies only the first medium from the condenser 6 to the evaporator 7 to cool the vehicle interior. In addition, in the third state where the first valve V1 is closed and the second valve V2 is open to allow only the first medium to flow into the cold machine 2, the first temperature control circuit C1 supplies only the first medium from the condenser 6 to the cold machine 2 to cool the battery 1.

[0058] The refrigeration cycle capacity Z (cooling capacity) of the first temperature control circuit C1 is, for example, 3 kW to 10 kW. In the first state, the refrigeration cycle capacity Z is distributed as the cooling capacity X ( Figure 2 The vehicle interior cooling capacity) and the battery 1 cooling capacity Y ( Figure 2 In the second state, the refrigeration cycle capacity Z is used only for the cooling capacity X of the vehicle interior, and in the third state, the refrigeration cycle capacity Z is used only for the cooling capacity Y of the battery 1. It should be noted that the refrigeration cycle capacity Z (cooling capacity) refers to the maximum cooling capacity that can be achieved by the refrigerator in the thermodynamic cycle of the refrigerator that utilizes the phenomenon of absorbing heat from the surroundings when the liquid evaporates and gasifies. The main factor that determines the refrigeration cycle capacity Z is the capacity of the compressor 5, but it is not determined solely by the capacity of the compressor 5. The refrigeration cycle capacity is determined by complex factors such as the performance of the condenser 6 that condenses the refrigerant compressed by the compressor 5 and the performance of the evaporator 7 that evaporates the condensed refrigerant.

[0059] The control device CTR cools the battery 1 based on the control of the first temperature control circuit C1 and the second temperature control circuit C2 while the battery 1 is being charged by the external power supply (plug-in charging). However, when the temperature in the vehicle cabin rises during the external charging of the battery 1 and the vehicle V is driven after the battery 1 is charged, if most of the refrigeration cycle capacity Z of the first temperature control circuit C1 is used for cooling (cooling) the vehicle cabin, the battery 1 is not cooled properly, and the battery temperature may rise to the threshold temperature (the temperature at which the output of the battery 1 is limited) Figure 2 T bat ps ).

[0060] like Figure 2 and Figure 5 As shown, when the external power source starts charging the storage battery 1, the control device CTR sets the first temperature control circuit C1 to the third state, and uses the refrigeration cycle capacity Z only for the cooling capacity Y of the storage battery 1; when the storage capacity of the storage battery 1 is above the specified value (for example, the storage capacity is Figure 2 The storage capacity SOC1 or more) and the vehicle interior temperature-related value associated with the vehicle interior temperature is greater than a threshold value (for example, Figure 2 When the vehicle interior temperature is T1 or above, the first temperature control circuit C1 is switched to the first state, and the refrigeration cycle capacity Z is allocated to the vehicle interior cooling capacity X and the battery 1 cooling capacity Y. It should be noted that the vehicle interior temperature-related value is not limited to the vehicle interior temperature, but may also be the outside air temperature, or the predicted vehicle interior temperature at the end of charging.

[0061] Thus, by cooling the vehicle interior during charging of the battery 1 , it is possible to prevent the output of the battery 1 from being limited due to most of the refrigeration cycle capacity Z of the first temperature control circuit C1 being used for cooling the vehicle interior when the vehicle V is driven after the battery 1 is charged.

[0062] Furthermore, by cooling the vehicle interior only when the amount of electricity stored in the battery 1 is equal to or greater than a predetermined value, the vehicle interior can be cooled using the surplus cooling capacity of the first temperature control circuit C1 after the amount of heat generated by the battery 1 decreases.

[0063] The predetermined value may also be set to the storage capacity (SOC1) when the constant current control is switched to the constant voltage control during the charging of the battery 1. For example, in the vehicle V, when the battery 1 is charged by the external power supply, as shown in FIG. Figure 3 As shown in FIG. 1 , when the storage capacity of the battery 1 is low, the battery 1 is charged by constant current control, and when the storage capacity of the battery 1 is close to the target storage capacity (SOC2), the battery 1 is charged by constant voltage control. According to such charging control, Figure 4 As shown in FIG. 1 , in the case of constant voltage control, the heat generated by the battery 1 during charging is less than that in the case of constant current control. Figure 2 As shown, the cooling capacity Y of the first temperature control circuit C1 allocated to cooling the battery 1 is reduced. Therefore, during the constant pressure control, the cooling capacity X (ZY) of the first temperature control circuit C1 can be used for cooling the vehicle interior.

[0064] That is, during the charging of the battery 1 by the external power source, the charging current and the calorific value of the battery 1 decrease in accordance with the increase in the storage capacity of the battery 1. Therefore, when the storage capacity of the battery 1 is greater than the specified value, the cooling capacity Y required for cooling the battery is reduced, and a part of the refrigeration cycle capacity Z can be allocated as the cooling capacity X used for cooling the vehicle interior. In the case of the transition from constant current control to constant voltage control according to the storage capacity of the battery 1 described above, the vehicle interior can be cooled by the first temperature control circuit C1 after the charging of the battery 1 is changed from constant current control to constant voltage control. In this way, the battery 1 can be appropriately cooled when the battery 1 is charged, and when the vehicle V is driven immediately after the battery 1 is charged, the output of the battery 1 can be suppressed from being limited due to the cooling capacity of the first temperature control circuit C1 being used for cooling the vehicle interior.

[0065] When cooling the vehicle cabin during charging of the battery 1, the control device CTR allocates the refrigeration cycle capacity Z of the first temperature control circuit C1 to the cooling of the battery 1 in priority over the cooling of the vehicle cabin. That is, the cooling capacity X allocated to the vehicle cabin cooling during charging of the battery 1 is limited to a cooling capacity obtained by subtracting the cooling capacity Y required for battery cooling from the refrigeration cycle capacity Z of the first temperature control circuit C1 (X≤ZY). Thus, the heat generation of the battery 1 can be suppressed preferentially.

[0066] In addition, the cooling capacity Y allocated to cooling the battery 1 during charging of the battery 1 is based on the threshold temperature ( Figure 2 T bat ps ) and the temperature of the battery 1 being charged ( Figure 2 T bat Specifically, when the temperature T of the battery 1 being charged is bat Does not exceed the threshold temperature T bat ps While cooling the battery 1 in a manner, the vehicle interior is cooled using the remaining cooling capacity.

[0067] Furthermore, when the vehicle V is driven after the battery 1 is charged, the control device CTR allocates the refrigeration cycle capacity Z of the first temperature control circuit C1 to the cooling of the battery 1 in priority over the cooling of the vehicle interior, so that the temperature of the battery 1 ( Figure 2 T bat ) does not exceed the threshold temperature ( Figure 2 T bat ps ). If you use Figure 2 Specifically, the cooling capacity Y of the battery 1 at the start of traveling is start is the target cooling capacity threshold value Y of the battery 1 at the start of driving low LMT Above, the target cooling capacity threshold Y low LMT Determine the temperature T of the battery 1 bat Below the threshold temperature T bat ps This can more appropriately suppress the output of the battery 1 from being limited when the vehicle V is driven after the battery 1 is charged.

[0068] At this time, the cooling of the vehicle interior is preferably set so that the vehicle interior temperature A at the start of traveling does not exceed the vehicle interior temperature threshold value B at the start of traveling.

[0069] If the vehicle V is not driven immediately after the battery 1 is charged, the control device CTR stops cooling the vehicle interior when the battery 1 is charged. This can prevent the amount of electricity stored in the battery 1 from decreasing due to cooling the vehicle interior.

[0070] The control device CTR may cool the vehicle cabin during the charging of the battery 1 only with the permission of the user. For example, the control device CTR may cool the vehicle cabin during the charging of the battery 1 only when the user is allowed to set in advance whether to cool the vehicle cabin during the charging of the battery 1 and the setting to allow the cooling of the vehicle cabin during the charging of the battery is performed. In this way, it is possible to avoid cooling the vehicle cabin without the permission of the user.

[0071] Furthermore, based on the charging schedule and the driving schedule, the control device CTR may cool the vehicle cabin during charging of the battery 1 when the interval between the scheduled end time of charging the battery 1 and the driving start time is less than a predetermined time. In this way, unnecessary cooling of the vehicle cabin can be avoided.

[0072] It should be noted that, when cooling the vehicle cabin during charging of the battery 1, surplus power from the external power supply is preferably used to cool the vehicle cabin. In this way, the battery 1 can be charged and the vehicle cabin can be cooled economically and efficiently at a charging station that charges according to charging time.

[0073] Next, refer to Figure 5 The processing procedure of the control device CTR for realizing the above-mentioned functions will be described.

[0074] like Figure 5As shown, if the battery 1 is charged by the external power supply, the control device CTR sets the first temperature control circuit C1 to the third state and starts cooling the battery 1 (S1), and then repeatedly determines whether the storage capacity of the battery 1 is greater than the specified value (S2). When the control device CTR determines that the storage capacity of the battery 1 is greater than the specified value, it determines whether the temperature of the vehicle interior is greater than the first threshold value (S3). When it is determined that the temperature of the vehicle interior is greater than the first threshold value, the control device CTR sets the first temperature control circuit C1 to the first state and starts cooling the vehicle interior (S4). On the other hand, when it is determined that the temperature of the vehicle interior is less than the first threshold value, the control device CTR keeps the first temperature control circuit C1 in the third state (S5).

[0075] Afterwards, the control device CTR completes the charging in accordance with the charging completion condition (S6), and then determines whether the temperature of the battery 1 is above the second threshold value (S7). When it is determined that the temperature of the battery 1 is above the second threshold value, the control device CTR sets the first temperature regulation circuit C1 to the first state or the third state and continues to cool the battery 1 (S8). On the other hand, when it is determined that the temperature of the battery 1 is less than the second threshold value, the control device CTR sets the first temperature regulation circuit C1 to the second state or the stop state and stops the cooling of the battery 1 (S9).

[0076] In the above, various embodiments are described with reference to the accompanying drawings, but it is self-evident that the present invention is not limited to this example. As long as one is skilled in the art, it is obvious that various variations or modifications can be thought of within the scope of the technical solution, and these are of course within the technical scope of the present invention. In addition, the various constituent elements in the above-mentioned embodiments can also be arbitrarily combined within the scope of the main purpose of the invention.

[0077] At least the following matters are described in this specification. It should be noted that, although corresponding components and the like in the above-mentioned embodiment are shown in brackets, the present invention is not limited thereto.

[0078] (1) A vehicle (vehicle V) comprising:

[0079] Car room;

[0080] a first temperature control circuit (first temperature control circuit C1) including a compressor (compressor 5), a condenser (condenser 6), an expansion valve (expansion valve 8) and an evaporator (evaporator 7), and cooling the vehicle interior;

[0081] A storage battery (storage battery 1) capable of receiving power from an external power source and being charged;

[0082] a second temperature regulating circuit (second temperature regulating circuit C2), which cools the battery;

[0083] a heat exchange unit (cooler 2) for performing heat exchange between a first medium flowing in the first temperature adjustment circuit and a second medium flowing in the second temperature adjustment circuit; and

[0084] A control device (control device CTR) controls the first temperature control loop and the second temperature control loop, wherein:

[0085] The control device, when the external power source is charging the storage battery,

[0086] The battery is cooled by the second temperature control circuit, and when the battery power is greater than a specified value (SOC1) and a vehicle interior temperature-related value associated with the temperature of the vehicle interior is greater than a threshold value (T1), the vehicle interior is cooled by the first temperature control circuit.

[0087] According to (1), by cooling the vehicle cabin during charging of the battery, it is possible to prevent the output of the battery from being limited due to the cooling capacity of the first temperature control circuit being used for cooling the vehicle cabin when the vehicle is driven immediately after charging the battery.

[0088] Furthermore, by cooling the vehicle interior only when the battery charge level is equal to or greater than a predetermined value, the vehicle interior can be cooled using the excess cooling capacity of the first temperature control circuit after the battery heat generation decreases, and the battery being externally charged can be appropriately cooled.

[0089] (2) The vehicle according to (1), wherein:

[0090] When cooling the vehicle interior during charging of the battery, the control device allocates the cooling capacity of the first temperature control circuit to cooling the battery with priority over that to cooling the vehicle interior.

[0091] According to (2), by cooling the storage battery with priority, it is possible to suppress the heat generation of the storage battery.

[0092] (3) The vehicle according to (2), wherein:

[0093] The cooling capacity of the first temperature control circuit allocated to cooling the battery is determined based on a threshold temperature at which the output of the battery is limited and a temperature of the battery being charged.

[0094] According to (3), the heat generation of the battery can be suppressed more appropriately.

[0095] (4) The vehicle according to (3), wherein:

[0096] When the vehicle is driven after the battery is charged, the control device allocates the cooling capacity of the first temperature control circuit to cooling the battery rather than to cooling the vehicle interior so that the temperature of the battery does not exceed the threshold temperature.

[0097] According to (4), it is possible to further appropriately suppress the output of the battery from being limited when the vehicle is driven after the battery is charged.

[0098] (5) The vehicle according to any one of (1) to (4), wherein:

[0099] The control device ends cooling of the vehicle interior when charging of the battery is completed.

[0100] According to (5), it is possible to avoid a reduction in the amount of electricity stored in the battery due to cooling of the vehicle interior.

[0101] (6) The vehicle according to any one of (1) to (5), wherein:

[0102] The control device cools the vehicle interior during charging of the battery only with permission from a user.

[0103] According to (6), it is possible to avoid the vehicle interior being cooled without the user's permission.

[0104] (7) The vehicle according to any one of (1) to (6), wherein:

[0105] The control device cools the vehicle interior during charging of the battery when an interval between a scheduled end time of charging of the battery and a travel start time is equal to or shorter than a predetermined time based on a charging schedule and a travel schedule.

[0106] According to (7), by determining whether to cool the vehicle cabin based on the charging schedule and the driving schedule, it is possible to avoid unnecessary cooling of the vehicle cabin. In addition, it is possible to prevent the output of the battery from being limited due to the cooling capacity of the first temperature control circuit being used for cooling the vehicle cabin when the vehicle is driven after the battery is charged.

[0107] (8) The vehicle according to any one of (1) to (7), wherein:

[0108] The battery is charged by constant current control until the storage amount of the battery reaches the predetermined value, and is charged by constant voltage control when the storage amount of the battery is equal to or greater than the predetermined value.

[0109] According to (8), during constant voltage control, the heat generated by the battery during charging is smaller than during constant current control, so the cooling capacity of the first temperature control circuit allocated to cooling the battery is reduced. Therefore, during constant voltage control, the cooling capacity of the first temperature control circuit can be used for cooling the vehicle interior.

[0110] (9) A vehicle (vehicle V) comprising:

[0111] Car room;

[0112] a first temperature control circuit (first temperature control circuit C1) including a compressor (compressor 5), a condenser (condenser 6), an expansion valve (expansion valve 8) and an evaporator (evaporator 7), and cooling the vehicle interior;

[0113] A storage battery (storage battery 1) capable of receiving power from an external power source and being charged;

[0114] a second temperature regulating circuit (second temperature regulating circuit C2), which cools the battery;

[0115] a heat exchange unit (cooler 2) for performing heat exchange between a first medium flowing in the first temperature adjustment circuit and a second medium flowing in the second temperature adjustment circuit; and

[0116] A control device (control device CTR) controls the first temperature control loop and the second temperature control loop, wherein:

[0117] The control device is charging the storage battery by the external power supply.

[0118] During the period when the battery is charged under constant current control, the first temperature control circuit is prohibited from cooling the vehicle interior.

[0119] After charging of the battery is switched from the constant current control to the constant voltage control, the first temperature regulating circuit is allowed to cool the vehicle interior.

[0120] According to (9), during constant voltage control, the heat generated during charging of the battery is smaller than during constant current control, so the cooling capacity of the first temperature control circuit allocated to cooling the battery is reduced. Therefore, during constant voltage control, the cooling capacity of the first temperature control circuit can be used for cooling the vehicle cabin. Therefore, the vehicle cabin can be cooled after the charging of the battery is switched from constant current control to constant voltage control. Thus, the battery being externally charged can be appropriately cooled, and when the vehicle is driven after the battery is charged, the situation in which the output of the battery is limited due to the cooling capacity of the first temperature control circuit being used for cooling the vehicle cabin can be suppressed.

[0121] (10) The vehicle according to (9), wherein:

[0122] The vehicle interior is cooled using electric power from the external power source.

[0123] According to (10), the vehicle interior is cooled using surplus power from an external power source after the battery charging is switched from constant current control to constant voltage control. This allows the battery to be charged and the vehicle interior to be cooled economically and efficiently at a charging station that charges according to charging time.

Claims

1. A vehicle comprising: Car room; a first temperature control circuit including a compressor, a condenser, an expansion valve, and an evaporator, and cooling the vehicle interior; A storage battery capable of receiving electricity from an external power source for charging; a second temperature regulating circuit, which cools the battery; a heat exchange portion for performing heat exchange between a first medium flowing in the first temperature regulating circuit and a second medium flowing in the second temperature regulating circuit; as well as A control device controls the first temperature regulating loop and the second temperature regulating loop, wherein: The control device, when the external power source is charging the storage battery, During the period when the battery is charged under constant current control, the first temperature control circuit is prohibited from cooling the vehicle interior. After the charging of the battery is switched from the constant current control to the constant voltage control, the first temperature regulating circuit is allowed to cool the vehicle interior, The battery is charged by the constant current control before the storage capacity of the battery reaches a specified value, and is charged by the constant voltage control when the storage capacity of the battery is above the specified value. The control device allocates the cooling capacity of the battery that is reduced accompanying the transition from the constant current control to the constant voltage control to the cooling of the vehicle interior.

2. The vehicle according to claim 1, wherein: When cooling the vehicle interior during charging of the battery, the control device allocates the cooling capacity of the first temperature control circuit to cooling the battery with priority over that to cooling the vehicle interior.

3. The vehicle according to claim 2, wherein: The cooling capacity of the first temperature control circuit allocated to cooling the battery is determined based on a threshold temperature at which the output of the battery is limited and a temperature of the battery being charged.

4. The vehicle according to claim 3, wherein: When the vehicle is driven after the battery is charged, the control device allocates the cooling capacity of the first temperature control circuit to cooling the battery rather than to cooling the vehicle interior so that the temperature of the battery does not exceed the threshold temperature.

5. The vehicle according to any one of claims 1 to 4, wherein: The control device ends cooling of the vehicle interior when charging of the battery is completed.

6. The vehicle according to any one of claims 1 to 4, wherein: The control device cools the vehicle interior during charging of the battery only with permission from a user.

7. The vehicle according to any one of claims 1 to 4, wherein: The control device cools the vehicle interior during charging of the battery when an interval between a scheduled end time of charging of the battery and a travel start time is equal to or shorter than a predetermined time based on a charging schedule and a travel schedule.

8. The vehicle of claim 1, wherein: The vehicle cools the vehicle cabin using the electric power from the external power source.

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