The invention provides a torque compensation method and system in motor shaking. The method comprises the steps that the current rotating speed of a motor is acquired; when the motor rotation speed is smaller than a first preset value, rotation speed acceleration is calculated according to the motor rotation speed signal, and rotation speed compensation is carried out on the motor under different rotation speed accelerations based on calibration values corresponding to the rotation speed acceleration; and when the rotating speed of the motor is greater than a first preset value, calculating the vehicle acceleration according to the IPB system signal, and performing rotating speed compensation on the motor under different vehicle accelerations based on the calibration value corresponding to the vehicle acceleration. According to the scheme, the rotating speed delay generated by low-pass filtering can be reduced, the torque compensation error is reduced, and the torque compensation accuracy is improved.

    本发明提供一种电机抖动中的扭矩补偿方法及系统,该方法包括:获取电机当前转速;当电机转速小于第一预定值,则根据电机转速信号计算转速加速度,基于转速加速度对应的标定值,对不同转速加速度下的电机进行转速补偿;当电机转速大于第一预定值,则根据IPB系统信号计算车辆加速度,基于车辆加速度对应的标定值,对不同车辆加速度下的电机进行转速补偿。通过该方案可以降低低通滤波产生的转速延迟,减小扭矩补偿误差,提高扭矩补偿的准确性。


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    Title :

    Torque compensation method and system in motor shaking


    Additional title:

    一种电机抖动中的扭矩补偿方法及系统


    Contributors:
    XU LINQIANG (author)

    Publication date :

    2023-05-02


    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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