The invention discloses a motor overload protection method, a motor controller, an automobile and a storage medium. The method comprises the steps of collecting a current phase current effective value of a motor; performing time integration on the current phase current effective value to obtain a first integral value; obtaining a first threshold value; performing overload detection according to the first threshold value and the first integral value; and if the overload exists, determining a target limiting current of the working of the motor, and controlling the motor to work based on the target limiting current. According to the method, device damage caused by overload can be avoided, the service life of the motor controller is prolonged, false triggering of overload protection can be prevented, the current for maintaining normal rotation of the motor is provided, the automobile can operate normally, and driving safety is guaranteed.

    本发明公开一种电机过载保护方法、电机控制器、汽车及存储介质。该方法包括:采集电机的当前相电流有效值;对所述当前相电流有效值进行时间积分,获取第一积分值;获取第一阈值;根据所述第一阈值和所述第一积分值进行过载检测;若存在过载,则确定所述电机工作的目标限制电流,基于所述目标限制电流控制电机工作。该方法可避免过载所导致的器件损坏,提高电机控制器的使用寿命,还可防止误触发过载保护,提供维持电机正常转动的电流,使得汽车能够正常运行,以保障驾驶安全。


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    Title :

    Motor overload protection method, motor controller, automobile and storage medium


    Additional title:

    电机过载保护方法、电机控制器、汽车及存储介质


    Contributors:
    WANG CHUNSHENG (author) / XU BOLIANG (author) / XIONG WEI (author) / QIN TAO (author) / CAO AN (author)

    Publication date :

    2023-03-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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