The invention discloses a motor torque zero-crossing control method and device, a controller, a vehicle and a readable storage medium, and the method comprises the steps: judging whether a motor is in a torque zero-crossing working condition or not, if yes, recognizing the type of the torque zero-crossing working condition, and determining a VCU request torque change rate and a motor rotation speed change rate; according to the type of the torque zero-crossing working condition, the VCU request torque change rate and the motor rotating speed change rate, target reverse compensation torque is determined; and applying a target reverse compensation torque opposite to the rotating speed fluctuation direction of the motor to the motor. According to the scheme disclosed by the invention, the target reverse compensation torque is determined according to the VCU request torque change rate and the motor rotating speed change rate, and the target reverse compensation torque opposite to the motor rotating speed fluctuation direction is applied to the motor, so that the motor rotating speed fluctuation is pulled back, the motor rotating speed fluctuation is reduced, and impact energy caused by reverse tooth leaning and vehicle inertia is buffered; and the problems of whole vehicle impact and abnormal sound caused by zero passage of motor torque are solved.

    本申请公开了一种电机扭矩过零控制方法、装置、控制器、车辆及可读存储介质,方法包括:判断电机是否处于扭矩过零工况,若是,则识别扭矩过零工况的类型,并确定VCU请求扭矩变化率及电机转速变化率;根据扭矩过零工况的类型、VCU请求扭矩变化率及电机转速变化率,确定目标反向补偿扭矩;为电机施加与电机转速波动方向相反的目标反向补偿扭矩。本申请公开的方案,根据VCU请求扭矩变化率及电机转速变化率确定目标反向补偿扭矩,为电机施加与电机转速波动方向相反的目标反向补偿扭矩,以将电机转速波动拉回来,降低电机转速的波动,缓冲反向靠齿和整车惯性带来的冲击能量,解决电机扭矩过零带来的整车冲击和异响问题。


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    Title :

    Motor torque zero-crossing control method and device, controller, vehicle and medium


    Additional title:

    电机扭矩过零控制方法、装置、控制器、车辆及介质


    Contributors:
    MA YINGGUO (author) / XIN SHUQING (author) / JIANG DANDAN (author)

    Publication date :

    2024-09-13


    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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