The invention discloses a motor torque zero-crossing control method, a motor torque zero-crossing control device and a vehicle. The method comprises the steps that whether motor request torque crosses zero or not is judged; if the motor request torque crosses zero, the motor output torque is controlled to be continuously weakened after the absolute value of the received motor request torque reaches a first preset value, and the motor output torque is controlled to be continuously enhanced before the motor output torque crosses zero again until the motor output torque is equal to the received current motor request torque. In the application, when the motor request torque crosses zero, the motor output torque is controlled to be continuously weakened after the absolute value of the received motor request torque reaches a first preset value, and the motor output torque is controlled to be continuously enhanced before the motor output torque crosses zero again. According to the method, the motion characteristics of a transmission system can be well constructed, and noise and impact generated when the torque of the motor crosses zero can be reduced.

    一种电机扭矩过零控制方法、电机扭矩过零控制装置及车辆,方法包括:判定电机请求扭矩是否过零;若电机请求扭矩过零,控制电机输出扭矩基于接收到的电机请求扭矩的绝对值达到第一预定值之后持续减弱,并在电机输出扭矩再次过零前控制电机输出扭矩持续增强,直到电机输出扭矩等于接收到的当前电机请求扭矩。在本申请中,当电机请求扭矩过零时,控制电机输出扭矩基于接收到的电机请求扭矩的绝对值达到第一预定值之后持续减弱,并在所述电机输出扭矩再次过零前控制所述电机输出扭矩持续增强,直到所述电机输出扭矩等于接收到的当前电机请求扭矩,可以很好地构造很契合传动系统运动特性,能够降低电机扭矩过零时产生的噪音和冲击。


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    Title :

    Motor torque zero-crossing control method, motor torque zero-crossing control device and vehicle


    Additional title:

    电机扭矩过零控制方法、电机扭矩过零控制装置及车辆


    Contributors:
    CHEN ZIRONG (author) / DU ZHIYONG (author) / XIAO KAI (author)

    Publication date :

    2024-06-21


    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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