The invention discloses a motor torque control method and device, a storage medium and a motor controller, driving parameters of a vehicle are obtained, and the working condition of the vehicle is determined according to the driving parameters. Under the condition that it is determined that the working condition indicates that the vehicle passes through the concave-convex road surface, the motor reference rotating speed, the available maximum torque and the available minimum torque corresponding to the driving parameters are obtained; and determining an upper limit rotation speed mode coefficient and a lower limit rotation speed mode coefficient based on the actual rotation speed and the motor reference rotation speed. And calculating the product of the upper limit rotation speed mode coefficient and the available maximum torque to obtain the target available maximum torque. And calculating the product of the lower limit rotating speed mode coefficient and the available minimum torque to obtain the target available minimum torque. And the output torque of the motor is adjusted to be larger than the target available minimum torque and smaller than the target available maximum torque, so that the torque fluctuation of the motor can be effectively eliminated, a mechanical structure connected with the motor is prevented from generating abnormal sound, and it is ensured that no abnormal sound is generated when the new energy automobile passes through the concave-convex road surface.

    本申请公开了一种电机扭矩控制方法、装置、存储介质和电机控制器,获取车辆的行驶参数,并依据行驶参数确定车辆的工况。在确定工况指示车辆经过凹凸路面的情况下,获取与行驶参数对应的电机参考转速、可用最大扭矩和可用最小扭矩。基于实际转速和电机参考转速,确定上限转速模式系数和下限转速模式系数。计算上限转速模式系数和可用最大扭矩的乘积,得到目标可用最大扭矩。计算下限转速模式系数和可用最小扭矩的乘积,得到目标可用最小扭矩。调节电机的输出扭矩,使得输出扭矩大于目标可用最小扭矩、且小于目标可用最大扭矩,从而能够有效消除电机的扭矩波动,避免与电机连接的机械结构产生异响,确保新能源汽车在经过凹凸路面时不会发生异响。


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    Titel :

    Motor torque control method and device, storage medium and motor controller


    Weitere Titelangaben:

    电机扭矩控制方法、装置、存储介质和电机控制器


    Beteiligte:
    CHENG LIPIN (Autor:in) / FENG XIAOGANG (Autor:in)

    Erscheinungsdatum :

    2022-09-13


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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