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CN-118742460-B - Method, apparatus and medium for charging thermal management of vehicle

CN118742460BCN 118742460 BCN118742460 BCN 118742460BCN-118742460-B

Abstract

A method, apparatus and medium for charge thermal management of a vehicle (1000). The charging thermal management method comprises the steps of obtaining current vehicle position, current battery electric quantity, current battery temperature and battery charging parameter information, obtaining charging device charging parameter information of corresponding charging devices according to the current vehicle position, and determining a thermal management strategy of the battery (100) according to the current battery electric quantity, the current battery temperature, the battery charging parameter information and the charging device charging parameter information. The temperature of the battery (100) can be adjusted in advance to be adapted to the output capacity of the charging pile (400), thereby effectively reducing the charging duration.

Inventors

  • FENG YANG
  • ZHANG CHUANHUI
  • LI BAO

Assignees

  • 宁德时代新能源科技股份有限公司
  • 宁德时代(上海)智能科技有限公司

Dates

Publication Date
20260505
Application Date
20221104

Claims (13)

  1. 1. A method of charging thermal management for a vehicle, comprising the steps of: acquiring current vehicle position, current battery electric quantity, current battery temperature and battery charging parameter information; acquiring charging equipment charging parameter information of corresponding charging equipment according to the current vehicle position; determining a thermal management strategy of the battery according to the current battery electric quantity, the current battery temperature, the battery charging parameter information and the charging equipment charging parameter information; wherein, the step of determining the thermal management policy of the battery according to the current battery power, the current battery temperature, the battery charging parameter information and the charging device charging parameter information comprises: determining a matched charging parameter according to the battery charging parameter information and the charging equipment charging parameter information; According to the matched charging parameters, determining the target battery temperature; confirming a thermal management strategy of the battery according to the current battery temperature and the target battery temperature; Wherein the step of confirming the thermal management strategy of the battery according to the current battery temperature and the target battery temperature further comprises: confirming a first residual battery capacity after the current battery temperature is adjusted to the target battery temperature; Confirming a second residual quantity of electricity of the vehicle from the current vehicle position to the position of the charging equipment according to the current vehicle position and the position of the charging equipment; confirming the compensated target battery temperature according to the first residual battery power and the second residual power; And determining the thermal management strategy of the battery according to the current battery temperature and the compensated target battery temperature.
  2. 2. The method of claim 1, wherein validating the thermal management strategy of the battery based on the current battery temperature and the target battery temperature further comprises: determining an arrival distance of the vehicle at the charging device according to the current vehicle position and the position of the charging device; and determining a thermal management strategy of the battery according to the temperature difference between the current battery temperature and the target battery temperature and the arrival distance, wherein the thermal management strategy comprises a corresponding relation between the arrival distance of the vehicle and the battery temperature.
  3. 3. The method of claim 1, wherein validating the thermal management strategy of the battery based on the current battery temperature and the target battery temperature further comprises: Determining the arrival time of the vehicle at the charging equipment according to the current vehicle position and the position of the charging equipment; And determining a thermal management strategy of the battery according to the temperature difference between the current battery temperature and the target battery temperature and the arrival time, wherein the thermal management strategy comprises a corresponding relation between the arrival time of the vehicle and the battery temperature.
  4. 4. The method of claim 1, wherein determining a thermal management policy for the battery based on the current battery charge level, the current battery temperature, the battery charging parameter information, and the charging device charging parameter information comprises: A charge waiting period is obtained from the charging device, Determining a thermal management strategy of the battery according to the charge waiting time, the current battery electric quantity, the current battery temperature, the battery charging parameter information and the charging equipment charging parameter information; the charging waiting time is obtained according to the using state and the reservation state of the charging equipment.
  5. 5. The method according to any one of claims 1 to 4, wherein the step of acquiring charging device charging parameter information of the corresponding charging device according to the current vehicle position further includes: Inquiring charging equipment charging parameter information of one or more charging equipment within a preset range according to the current vehicle position; determining a predicted charging duration corresponding to the one or more charging devices according to charging device charging parameter information and battery charging parameters of the one or more charging devices; Providing an option for selecting the charging equipment to a user according to the predicted charging duration; And determining charging device charging parameter information of the corresponding charging device in response to the option selected by the user.
  6. 6. The method according to any one of claims 2 to 4, wherein the method further comprises the step of: adjusting a battery temperature of the battery to the target battery temperature according to the thermal management strategy; And responding to a charging instruction, and adjusting the charging current for charging the battery according to the battery temperature and the battery electric quantity of the battery.
  7. 7. The method of any of claims 1-4, wherein the battery charging parameter information includes a correspondence between at least one of a charging current or a charging voltage supported by the battery and a battery charge level, a battery temperature.
  8. 8. The method of any of claims 1-4, wherein the charging device charging parameter information comprises a charging current or a charging voltage supported by the charging device.
  9. 9. The method of any of claims 2-4, wherein the matching charging parameters include a charging current or a charging voltage that is commonly supported by the battery charging parameter information and the charging device charging parameter information.
  10. 10. The method of any of claims 2-4, wherein the matched charging parameters include a maximum charging current that is commonly supported by the battery charging parameter information and the charging device charging parameter information.
  11. 11. The method of any of claims 1-4, wherein the thermal management strategy comprises adjusting a battery temperature of the battery to the target battery temperature by controlling at least one of a heater, a chiller, a motor operation mode, or a kinetic energy recovery mode.
  12. 12. A computer device comprising a processor and a memory, the memory storing a computer program, characterized in that the computer program, when executed by the processor, causes the processor to carry out the steps of the method of any one of claims 1 to 4.
  13. 13. A computer readable storage medium storing a computer program which, when executed by a processor, implements the steps of the method of any one of claims 1 to 4.

Description

Method, apparatus and medium for charging thermal management of vehicle Technical Field The disclosure relates to the technical field of battery thermal management, and in particular relates to a charging thermal management method, device and medium for a vehicle. Background In recent years, whole car manufacturers and battery manufacturers continue to push out new charging protocols with high charging rates, such as 6C charging and 670A charging. Along with the continuous popularization and promotion of the high-current charging standard, new and old quick charging piles are mixed in the market, the charging output range difference of the charging piles is also larger and larger, the maximum output current of the public charging piles is different from tens of amperes to hundreds of amperes, and the difficulty is brought to the selection of the charging piles for vehicle owners. Technical problem of the invention The present disclosure is directed to solving at least one of the technical problems existing in the background art. To this end, it is an object of the present disclosure to provide a charging thermal management method, apparatus, device, and medium for a vehicle to solve the problems in the background art. Technical solution An embodiment of a first aspect of the present disclosure provides a method for thermal management of charging of a vehicle, where the method includes the steps of obtaining a current vehicle position, a current battery power, a current battery temperature, and battery charging parameter information, obtaining charging device charging parameter information of a corresponding charging device according to the current vehicle position, and determining a thermal management policy of the battery according to the current battery power, the current battery temperature, the battery charging parameter information, and the charging device charging parameter information. In some embodiments, determining the thermal management strategy of the battery based on the current battery level, the battery temperature, the battery charging parameter information, and the charging device charging parameter information includes determining a matching charging parameter based on the battery charging parameter information and the charging device charging parameter information, determining a target battery temperature based on the matching charging parameter, and determining the thermal management strategy of the battery based on the current battery temperature and the target battery temperature. In some embodiments, the step of determining the thermal management strategy of the battery according to the current battery temperature and the target battery temperature further comprises determining a first remaining power after the current battery temperature is adjusted to the target battery temperature, determining a compensated target battery temperature according to the first remaining power, and determining the thermal management strategy of the battery according to the current battery temperature and the compensated target battery temperature. In some embodiments, the step of determining the thermal management strategy of the battery based on the current battery temperature and the target battery temperature further comprises determining a second remaining power of the vehicle from the current vehicle position to the position of the charging device based on the current vehicle position and the position of the charging device, determining a compensated target battery temperature based on the second remaining power, and determining the thermal management strategy of the battery based on the current battery temperature and the compensated target battery temperature. In some embodiments, the step of determining the thermal management strategy of the battery further comprises determining a first remaining battery capacity after the current battery temperature is adjusted to the target battery temperature based on the current battery temperature and the target battery temperature, determining a second remaining battery capacity for the vehicle to travel from the current vehicle position to the position of the charging device based on the current vehicle position and the position of the charging device, determining a compensated target battery temperature based on the first remaining battery capacity and the second remaining battery capacity, and determining the thermal management strategy of the battery based on the current battery temperature and the compensated target battery temperature. In some embodiments, the step of determining the thermal management strategy of the battery according to the current battery temperature and the target battery temperature further comprises determining an arrival distance of the vehicle at the charging device according to the current vehicle position and the charging device position, and determining the thermal management strategy of the battery according to a temperat