The invention discloses a battery heating method of a vehicle, a battery heating system, the vehicle and terminal equipment, the vehicle comprises a battery, a motor and an inverter, one end of the inverter is connected with a first end of the battery, the other end of the inverter is connected with a second end of the battery, the inverter comprises at least two phases of bridge arms, the motor comprises at least two phases of coils, and the coils are connected with the motor. The motor is connected with the inverter, each phase of coil is connected to a middle point between an upper bridge arm and a lower bridge arm of a corresponding phase of bridge arm, and the method comprises the following steps: determining a target phase difference for controlling staggered-phase conduction of at least two phases of bridge arms based on a heating demand of a battery and a working state of the inverter; and controlling the at least two phases of bridge arms according to the target phase difference, so that the at least two phases of coils generate heat matched with the heating requirement to heat the battery. According to the invention, the heat generated by the motor in the battery charging process can be used for heating the battery, the circuit structure is simple, the energy loss is low, and the charging cost is low.

    本申请公开了一种车辆的电池加热方法、电池加热系统、车辆和终端设备,上述车辆包括电池、电机和逆变器,逆变器的一端连接电池的第一端,逆变器的另一端连接电池的第二端,逆变器包括至少两相桥臂,电机包括至少两相线圈,电机与逆变器相连接,每相线圈连接至对应一相桥臂的上桥臂和下桥臂之间的中间点,上述方法包括:基于电池的加热需求和逆变器的工作状态,确定用于控制至少两相桥臂错相位导通的目标相位差;根据目标相位差控制至少两相桥臂,以使至少两相线圈产生与加热需求匹配的热量为电池加热。采用本申请,可以利用电池充电过程中电机产生的热量为电池加热,电路结构简单,能源损耗少,充电成本低。


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    Title :

    Battery heating method of vehicle, battery heating system, vehicle and terminal equipment


    Additional title:

    车辆的电池加热方法、电池加热系统、车辆和终端设备


    Contributors:
    LING HEPING (author) / PAN HUA (author) / ZHAO ZHIMENG (author) / GUO CHANGCHANG (author) / LIU FENGJING (author)

    Publication date :

    2024-08-16


    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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