The invention discloses a motor control method and system in an engine shutdown process, and the method comprises the steps: employing a mode of requesting a motor controller to enter an active short-circuit mode or a mode of requesting the motor controller to generate negative torque according to different situations in an engine shutdown scene in which motor squeal is generated, thereby actively and rapidly reducing the rotating speed of a motor, and achieving the purpose of reducing the rotating speed of the motor. The problem of motor howling in the engine shutdown process can be solved, the driving experience is improved, and meanwhile the duration of the vehicle power-off process is greatly shortened.

    本发明公开了一种发动机停机过程中的电机控制方法及控制系统,其在产生电机啸叫的发动机停机场景下,分情况采用请求电机控制器进入主动短路模式的方式或者请求电机控制器产生负扭矩的方式,来主动快速降低电机转速,能解决发动机停机过程中的电机啸叫问题,改善驾乘体验,同时大幅度缩短车辆下电过程的时长。


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    Titel :

    Motor control method and control system in engine shutdown process


    Weitere Titelangaben:

    一种发动机停机过程中的电机控制方法及控制系统


    Beteiligte:
    FENG JIE (Autor:in) / CAI JIANWEI (Autor:in) / LIU CHANGPENG (Autor:in) / LIU BIN (Autor:in)

    Erscheinungsdatum :

    2022-07-22


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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