The invention provides a power battery heat preservation control method and device, a storage medium and equipment. In the charging process, when a battery is in a fully charged state, whether heat preservation conditions are met or not is judged according to the battery temperature, the environment temperature, the charging remaining time and the maximum driving power of the battery, and when the heat preservation conditions are met, a heater is controlled to stop working; requesting the battery management system to disconnect the high-voltage relay, controlling the vehicle-mounted charger to enter a charging mode, controlling the charging pile to keep zero output, waiting for the battery management system to feed back that the high-voltage relay is disconnected, then controlling the heater to enter a heating mode, and controlling the charging current value output by the charging pile according to the working gear of the heater. Thus, in the heat preservation process, the high-voltage relay is in a disconnected state, energy needed by the heater is all provided by the charging pile, and therefore the problems of battery overcharge and overcurrent possibly caused by output fluctuation of the heater and the charging pile are solved, and the safety of the battery is guaranteed.

    本申请提供一种动力电池保温控制方法、装置、存储介质及设备,该方法中,在充电过程中,当电池处于充满状态时,根据电池温度、环境温度、充电剩余时间以及电池最大驱动功率,判断是否满足保温条件,并在满足时,控制加热器停止工作后,请求电池管理系统断开高压继电器,以及控制车载充电机进入充电模式,并控制充电桩保持零输出,等待电池管理系统反馈高压继电器的状态为断开时,再控制加热器进入加热模式,并根据加热器的工作挡位控制充电桩输出的充电电流值。如此,在保温的过程中,高压继电器处于断开的状态,加热器需要的能量全部由充电桩来提供,从而防止加热器和充电桩输出波动可能导致的电池过充和过流问题,保证电池安全。


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    Title :

    Power battery heat preservation control method and device, storage medium and equipment


    Additional title:

    一种动力电池保温控制方法、装置、存储介质及设备


    Contributors:
    WANG GONGLIANG (author) / XIE ZHONGYU (author) / ZHANG WUXUE (author) / YI HAIXIA (author)

    Publication date :

    2024-01-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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