The invention relates to the technical field of vehicles, and provides a motor heating control method and device and a power battery auxiliary heating method and device.The motor heating control method comprises the steps that a virtual position angle serving as a direct-axis current input angle is determined according to the actual position angle of a motor rotor; the virtual position angle enables the direct-axis current to have a deflection angle with each phase current of the motor; and according to the virtual position angle, direct-axis current is applied to the motor, and after a period of time, the direct-axis current is increased, so that the motor is in a locked-loop heat transfer state. According to the invention, the appropriate virtual position angle is selected as the direct-axis current input angle, so that the optimal distribution of each phase of current of the motor can be realized, the highest single-phase heating of the motor is avoided, and the heating efficiency and reliability of the motor are improved.

    本申请涉及车辆技术领域,提供了一种电机加热控制方法及装置、动力电池辅助加热方法及装置,该电机加热控制方法包括:根据电机转子的实际位置角,确定作为直轴电流输入角度的虚拟位置角;所述虚拟位置角使得所述直轴电流与电机的各相电流存在偏角;根据所述虚拟位置角,向电机施加直轴电流,并在一段时间后,增大所述直轴电流,以使所述电机处于堵转发热状态。本申请通过选定合适的虚拟位置角作为直轴电流输入角度,能够实现电机的各相电流的优化分配,以避免电机的单相发热最高,提高电机加热的效率和可靠性。


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    Title :

    Motor heating control method and device, power battery auxiliary heating device and vehicle


    Additional title:

    电机加热控制方法及装置、动力电池辅助加热装置及车辆


    Contributors:
    LI YOULI (author) / WU XINPING (author) / SHI CHAOJIE (author)

    Publication date :

    2024-10-18


    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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