The invention discloses a power battery heating method, a vehicle control unit, equipment, a medium and an automobile, and belongs to the technical field of power batteries. The method comprises the steps that whether power battery heating operation can be executed or not is judged; if yes, whether a power battery heating heat source can select motor auxiliary heating or not is judged; if yes, judging an initial motor auxiliary heating power request value according to the maximum output power of the charger; controlling the heat management accessory to heat the power battery; based on the motor temperature and the IGBT temperature, quit and power reduction re-entry of auxiliary heating of the motor are judged. Motor auxiliary heating is used as a battery heating source, and the defect that a heat pump system is difficult to heat a battery in the current low-temperature environment is effectively overcome. In the auxiliary heating operation process of the motor, the function of auxiliary heating and power reduction use of the motor is completed according to the temperature of the motor and the temperature of the IGBT, the safety of the motor and the whole vehicle is effectively protected, and meanwhile stable heating of the battery in the low-temperature environment is achieved.

    本申请公开了一种动力电池加热方法、整车控制器、设备、介质及汽车,属于动力电池技术领域,该方法包括:判断是否可执行动力电池加热操作;若是,判断动力电池加热热源是否可以选择电机辅助加热;若是,根据充电机最大输出功率判断初始进入电机辅助加热功率请求值;控制热管理附件对动力电池进行加热;基于电机温度和IGBT温度判断电机辅助加热的退出与降功率再次进入。本申请使用电机辅助加热作为电池加热热源,有效弥补当前低温环境下热泵系统难以实现对电池加热的短板。电机辅助加热运行过程中,根据电机温度及IGBT温度完成电机辅助加热降功率使用的功能,有效保护电机及整车安全性的同时,实现低温环境下对电池的稳定加热。


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    Title :

    Power battery heating method, vehicle control unit, equipment, medium and automobile


    Additional title:

    动力电池加热方法、整车控制器、设备、介质及汽车


    Contributors:
    WEI JUN (author) / REN KE (author) / GUO YAZI (author) / MENG YAN (author)

    Publication date :

    2024-02-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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