The invention provides a motor torque control method for an electric vehicle, which comprises the following steps of: when an electric drive axle of the vehicle has a backlash, acquiring vehicle state information; judging the vehicle state information, and matching a motor torque control strategy corresponding to the vehicle state information; and based on the motor torque control strategy, the motor torque of the electric drive axle is adjusted to reduce the backlash of the electric drive axle, so that the backlash of the whole electric drive axle assembly can be engaged in advance, the service life of a gear is prolonged, and inter-tooth impact, tooth beating and abnormal sound are avoided when the vehicle is started and decelerated.

    本发明提供了一种电动车的电机扭矩控制方法,包括以下步骤在车辆的电驱桥存在侧隙时,获取车辆状态信息;对所述车辆状态信息进行判断,并匹配所述车辆状态信息对应的电机扭矩控制策略;基于所述电机扭矩控制策略,对所述电驱桥的电机扭矩进行调整以减小电驱桥的侧隙,实现在车辆起步、减速时,使整个电驱桥总成的侧隙可以提前啮合,提高齿轮寿命,避免齿间冲击,避免打齿和异响。


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    Title :

    Motor torque control method of electric vehicle


    Additional title:

    一种电动车的电机扭矩控制方法


    Contributors:
    LUO YA (author) / LIU DONG (author) / WEN JUNWEN (author)

    Publication date :

    2025-03-04


    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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