CN-116021948-B - Vehicle and control method for vehicle

CN116021948BCN 116021948 BCN116021948 BCN 116021948BCN-116021948-B

Abstract

The present disclosure provides a vehicle and a control method of the vehicle that coordinate battery cooling and defrosting functions. The vehicle includes a battery for running, an air conditioner having a defroster mode and configured to air-condition a cabin interior by a refrigeration cycle, a battery cooling device configured to cool the battery using a coolant that is cooled by heat exchange with a refrigerant flowing through the air conditioner, and a control device configured to control the air conditioner and the battery cooling device, wherein the control device is configured to operate the air conditioner in the defroster mode while operating the battery cooling device when the vehicle is running and to operate the battery cooling device while stopping the air conditioner when the vehicle is stopped, when the temperature of the battery is higher than a reference temperature.

Inventors

HIYOSHI MASATOSHI
HASEGAWA YOSHIO
Nitta Haruka
Chi Shangzhen
Fu family and also

Assignees

丰田自动车株式会社
株式会社斯巴鲁

Dates

Publication Date: 20260512
Application Date: 20220825
Priority Date: 20211025

Claims (6)

1. A vehicle, characterized by comprising: A battery for running; An air conditioner having a defroster mode in which air-conditioned air is blown out toward a window glass, and configured to air-condition a cabin interior by a refrigeration cycle; A battery cooling device configured to cool the battery using a coolant that is cooled by heat exchange with a refrigerant flowing in the air conditioning device, and A control device configured to control the air conditioning device and the battery cooling device, wherein, The control device controls the air conditioner to operate in the defroster mode while operating the battery cooling device when the vehicle is running, and operates the battery cooling device when the vehicle is stopped, and on the other hand, stops the air conditioner, The control device sets the cooling amount of the battery cooled by the battery cooling device to a first cooling amount when the vehicle is running and sets the cooling amount of the battery cooled by the battery cooling device to a second cooling amount when the vehicle is stopped, The second cooling amount is larger than the first cooling amount.
2. The vehicle of claim 1, wherein the vehicle is a vehicle, The control device sets the cooling amount of the battery cooled by the battery cooling device to a third cooling amount when the temperature of the battery is lower than the reference temperature, The first cooling amount is larger than the third cooling amount.
3. A vehicle according to claim 1 or 2, characterized in that, The vehicle further includes an operation panel that accepts a user operation of selecting an operation mode of the air conditioner, wherein, The control device controls the air conditioning device regardless of a user operation received by the operation panel when the temperature of the battery is higher than the reference temperature.
4. A vehicle according to claim 1 or 2, characterized in that, The air conditioner further has at least one operation mode other than the defroster mode, The control device operates the air conditioner in the defroster mode when the temperature of the battery is higher than the reference temperature, and prohibits the operation of the air conditioner in the at least one operation mode when the vehicle is running.
5. The vehicle of claim 4, wherein the vehicle is further characterized by, The at least one operation mode includes a face mode in which the conditioned air is blown out toward a position of a face or chest of a user seated in the seat and a foot mode in which the conditioned air is blown out toward a foot of the user, The control device permits operation of the air conditioner in the face mode or the foot mode in addition to the defroster mode when the temperature of the battery is lower than the reference temperature.
6. A control method of a vehicle, wherein the vehicle includes: A battery for running; an air conditioner having a defroster mode for blowing air-conditioned air toward a window glass and configured to air-condition a cabin interior by a refrigeration cycle, and A battery cooling device configured to cool the battery using a coolant that is cooled by heat exchange with a refrigerant flowing in the air conditioning device, The control method of the vehicle is characterized by comprising the following steps: when the temperature of the battery is higher than a reference temperature, operating the air conditioner in the defroster mode while operating the battery cooling device when the vehicle is running, and When the temperature of the battery is higher than a reference temperature, the battery cooling device is operated while the vehicle is parked, and the air conditioning device is stopped When the temperature of the battery is higher than the reference temperature, the cooling amount of the battery cooled by the battery cooling device is set to a first cooling amount when the vehicle is running, the cooling amount of the battery cooled by the battery cooling device is set to a second cooling amount when the vehicle is stopped, The second cooling amount is made larger than the first cooling amount.

Description

Vehicle and control method for vehicle Technical Field The present disclosure relates to a vehicle and a control method of the vehicle, and more particularly to a control technique of a vehicle mounted with a battery for running. Background A vehicle structure capable of cooperatively controlling a heat pump type air conditioner mounted on a vehicle and a cooling system of a running battery is proposed. The cooling device for a battery disclosed in japanese patent No. 5392298 determines the cooling priority of the battery based on the temperature of the refrigerant used to cool the battery or the temperature of the battery. The higher the cooling priority of the battery, the more the cooling device increases the target rotation speed of the electric compressor included in the air conditioner. In many countries, there is an obligation to set up defrosters under legal regulations. When the defroster is used, air-conditioned air from the air-conditioning device is blown out toward the window glass (particularly, the front glass), whereby fogging of the window glass can be suppressed. In the cooling device of the secondary battery disclosed in japanese patent No. 5392298, no particular study is made of the defroster. Disclosure of Invention Problems to be solved by the invention The present disclosure coordinates battery cooling and defrost functions. (1) One aspect of the present disclosure relates to a vehicle including a battery for running, an air conditioner, a battery cooling device, and a control device configured to control the air conditioner and the battery cooling device. The air conditioner has a defroster mode in which conditioned air is blown out toward a window glass, and is configured to air-condition the interior of a vehicle cabin by a refrigeration cycle. The battery cooling device is configured to cool the battery using a coolant that is cooled by heat exchange with a refrigerant flowing through the air conditioning device. When the temperature of the battery is higher than the reference temperature, the control device controls the air conditioner to operate in the defroster mode while operating the battery cooling device when the vehicle is running, and to operate the battery cooling device and to stop the air conditioner when the vehicle is stopped. (2) The control device may set the cooling amount of the battery cooled by the battery cooling device to a first cooling amount when the vehicle is running and set the cooling amount of the battery cooled by the battery cooling device to a second cooling amount when the vehicle is parked, when the temperature of the battery is higher than the reference temperature. The second cooling amount may be larger than the first cooling amount. In the configuration of (1) above, the air conditioner is controlled so that the air conditioner operates in the defroster mode when the vehicle is traveling, whereby visibility of a user (driver) of the vehicle is ensured, and the air conditioner is stopped when the vehicle is stopped. In the configuration of (2) above, the second cooling amount when the vehicle is stopped is larger than the first cooling amount when the vehicle is running. Therefore, according to the respective configurations of (1) and (2), the battery cooling and defrosting functions can be coordinated. (3) The control device may set the cooling amount of the battery cooled by the battery cooling device to the third cooling amount when the temperature of the battery is lower than the reference temperature. The first cooling amount may be larger than the third cooling amount. According to the configuration of (3) above, when the temperature of the battery, including during running of the vehicle, is higher than the reference temperature, the cooling amount of the battery is increased as compared with the case where the temperature of the battery is lower than the reference temperature. This can protect the battery more reliably. (4) The vehicle may further include an operation panel that receives a user operation to select an operation mode of the air conditioner. The control device may control the air conditioner regardless of the user operation received by the operation panel when the temperature of the battery is higher than the reference temperature. (5) The air conditioner may further have at least one operation mode other than the defroster mode. When the temperature of the battery is higher than the reference temperature, the control device may operate the air conditioner in the defroster mode while the vehicle is traveling, and may prohibit the operation of the air conditioner in the at least one operation mode. According to the respective configurations of (4) and (5), the battery cooling and defrosting functions can be coordinated regardless of the user operation. In addition, the comfort of the user in the vehicle cabin can be improved. (6) The at least one operation mode may include a face mode in which the conditioned air is blown