The invention provides a vehicle electric drive control method and system, terminal equipment and a storage medium, and the vehicle electric drive control method comprises the steps that the change rate a (t) of the motor rotating speed change rate at the t-th moment is calculated according to the motor rotating speed; acquiring a torque command, wherein the torque command comprises a given torque M1 (t); whether the vehicle meets the zero-crossing impact condition or not is judged, and if yes, the motor is controlled to rotate at the set torque M2 (t); if not, the motor is controlled to rotate at the given torque M1 (t); wherein the torque gradient of the set torque M2 (t) is smaller than the torque gradient of the given torque M1 (t); the zero-crossing impact condition comprises a first condition and a second condition; the first condition is that the secondary derivation value a (t) is greater than a first set threshold value; the second condition is that the given torque M1 (t) is within a set torque range. Through the method, the control precision is improved, the torque change can be slowed down when the motor is in zero-crossing impact, and the torque zero-crossing smoothness is improved.

    本申请提供一种车辆电驱控制方法、系统、终端设备及存储介质,其中车辆电驱控制方法包括:根据电机转速,计算第t时刻电机转速变化率的变化率a(t);获取扭矩指令,扭矩指令包括给定扭矩M1(t);判断车辆是否满足过零冲击条件:若是,则以设定扭矩M2(t)控制电机转动;若否,则以给定扭矩M1(t)控制电机转动;其中,设定扭矩M2(t)的扭矩梯度小于给定扭矩M1(t)的扭矩梯度;过零冲击条件包括:第一条件和第二条件;第一条件为二次求导值a(t)大于第一设定阈值;第二条件为所述给定扭矩M1(t)处于设定扭矩范围内。通过上述方法,提高了控制精度,当电机处于过零冲击时可以减缓扭矩变化,提高了扭矩过零平顺性。


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    Title :

    Vehicle electric drive control method and system, terminal equipment and storage medium


    Additional title:

    一种车辆电驱控制方法、系统、终端设备及存储介质


    Contributors:
    ZHANG GONG (author) / YU XINGLONG (author) / HU HAO (author) / LYU XUEWANG (author) / LI FAQIANG (author) / XU LIN (author)

    Publication date :

    2023-04-07


    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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