The invention belongs to the technical field of electric vehicles, and particularly relates to a motor torque control method for a dual-motor electric vehicle, which comprises the following steps of: acquiring a motor end demand torque, determining a main drive motor and an auxiliary drive motor, performing torque distribution on the main drive motor and the auxiliary drive motor, and performing torque control on the main drive motor and the auxiliary drive motor. The motor aging factors caused by the actual capacity, the motor temperature and the load rate of the two motors are considered, the main/auxiliary drive switching principle is provided, the dynamic property of the whole vehicle is effectively improved, the service life of the motors is effectively prolonged, on the premise that the dynamic property of the whole vehicle is met, the situation that the motors work in a low economic area is effectively avoided, and the economical efficiency of the whole vehicle is improved.

    本发明属于电动汽车技术领域,特别是涉及一种双电机电动汽车的电机扭矩控制方法,包括如下步骤:获取电机端需求扭矩、确定主驱电机和辅驱电机、进行主驱电机和辅驱电机扭矩分配、对主驱电机和辅驱电机进行扭矩控制;本发明考虑两个电机的实际能力、电机温度以及负载率导致的电机老化因素,提出了主/辅驱切换原则,有效提升整车动力性和延长电机使用寿命,在满足整车动力性的前提下,有效避免电机工作在低经济区,提高了整车经济性。


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    Title :

    Motor torque control method for dual-motor electric automobile


    Additional title:

    一种双电机电动汽车的电机扭矩控制方法


    Contributors:
    CHEN XIAOJIE (author) / ZHANG SONG (author) / AN LIQIANG (author) / LI JINDA (author) / XIA JINGLIN (author) / WEI XUAN (author)

    Publication date :

    2025-02-11


    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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