The invention relates to the technical field of automobile driving motors, and particularly discloses a driving motor over-temperature fault processing method and system, and the method comprises the steps: setting two threshold temperatures according to the allowable temperature of a motor, presetting the relation between the threshold temperatures and the torque output of the motor, setting the return difference temperature, and employing the setting of torque and temperature hysteresis. By means of the method, the motor can be effectively protected from being damaged due to the over-temperature fault, and poor driving experience brought to a driver due to the fact that the motor stops outputting the over-temperature torque is reduced as much as possible.

    本发明涉及汽车驱动电机技术领域,具体公开了一种驱动电机过温故障处理方法及系统,根据电机许用温度设置两个阈值温度,并预设阈值温度与电机扭矩输出关系,并设置回差温度,采用扭矩、温度滞环的设置,避免电机在阀值温度跳变时电机反复开启降扭或故障锁定,该方法能够有效保护电机不会因为过温故障损坏电机,也尽可能减少由于电机过温扭矩停止输出给驾驶员带来较差驾驶体验。


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    Title :

    Over-temperature fault processing method and system for driving motor


    Additional title:

    一种驱动电机过温故障处理方法及系统


    Contributors:
    CUI ZHENYANG (author) / FAN GUANGLI (author) / HOU CHENGWEI (author) / WANG FUQUAN (author) / WANG XIAOPENG (author) / XIAO ZIJIE (author) / WANG BIN (author)

    Publication date :

    2023-06-27


    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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