The invention relates to a driving motor zero torque and torque zero-crossing control method, which mainly comprises the following steps: when the torque demand of a driving motor is changed from zero to positive torque and the torque demand is less than or equal to A, the torque execution value of a motor controller is kept to be A, and when the torque demand is greater than A, the torque execution value of the motor controller is a torque demand value; when the torque demand of the driving motor is from positive to zero or negative, and the torque demand is smaller than or equal to A and larger than or equal to-B, the torque execution value of the motor controller is kept to be A; if the torque demand is larger than A or smaller than B, the torque execution value of the motor controller is the torque demand value; when the torque demand of the driving motor is from negative to zero or positive, and the torque demand is larger than-B and smaller than A at the same time, the torque execution value of the motor controller is kept to be-B, the torque demand is larger than A or smaller than-B, and the torque execution value of the motor controller is the torque demand value; noise caused by repeated tooth knocking can be avoided, and abrasion between the splines can be reduced.

    本发明涉及一种驱动电机零扭矩和扭矩过零控制方法,主要步骤如下:当驱动电机的扭矩需求由零到正扭矩,且扭矩需求小于等于A时,电机控制器扭矩执行值保持为A,扭矩需求大于A,电机控制器扭矩执行值为扭矩需求值;当驱动电机的扭矩需求由正到零或到负,且扭矩需求小于等于A同时大于等于‑B时,电机控制器扭矩执行值保持为A;扭矩需求大于A或小于‑B,电机控制器扭矩执行值为扭矩需求值;当驱动电机的扭矩需求由负到零或正,且扭矩需求大于‑B同时小于A时,电机控制器扭矩执行值保持为‑B,扭矩需求大于A或小于‑B,电机控制器扭矩执行值为扭矩需求值;本发明可以避免反复敲齿带来的噪声和减少花键间的磨损。


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    Title :

    Driving motor zero torque and torque zero-crossing control method


    Additional title:

    一种驱动电机零扭矩和扭矩过零控制方法


    Contributors:
    CHENG DEXIANG (author) / XIA BING (author) / YOU TAO (author)

    Publication date :

    2023-05-30


    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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