The invention provides a motor self-heating method, a vehicle controller and a vehicle wherein the motor self-heating method comprises the following steps: when a motor auxiliary heating instruction is received, calculating a current amplitude required for heating a motor based on a preset power carried by the motor auxiliary heating instruction and the loss of the motor; calculating a D-axis current reference value and a Q-axis current reference value of the motor under a preset rotation frequency based on the current amplitude required by heating of the motor and a DQ rotor coordinate system; the three-phase voltage of the motor is calculated based on the D-axis current reference value of the motor, the Q-axis current reference value of the motor and the three-phase current detection value of the motor; and controlling the motor to perform self-heating at preset power based on the three-phase voltage of the motor. According to the invention, self-heating of the motor can be realized, and meanwhile, the motor has the advantage of higher heating power.

    本申请提供一种电机自加热方法、车辆控制器和车辆,其中,电机自加热方法包括:当接收到电机辅助加热指令时,基于电机辅助加热指令携带的预设功率和电机的损耗,计算电机的加热所需电流幅值;基于电机的加热所需电流幅值和DQ转子坐标系计算在预设旋转频率下的D轴电流参考值和电机的Q轴电流参考值;获取电机的三相电流检测值基于电机的D轴电流参考值、电机的Q轴电流参考值和电机的三相电流检测值,计算电机的三相电压;基于电机的三相电压控制电机以预设功率进行自加热。本申请能够实现电机的自加热,同时,本申请具有发热功率更高的优点。


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    Title :

    Motor self-heating method, motor controller and vehicle


    Additional title:

    电机自加热方法、电机控制器和车辆


    Contributors:
    XIA ZHULIANG (author) / WAN XI (author) / YANG KAICHENG (author) / GONG HAORAN (author) / HU ZHIHUA (author) / WANG FUMIN (author)

    Publication date :

    2023-04-28


    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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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