The invention provides a self-heating control method and device for a power battery, a medium and an automobile, and the method comprises the steps: determining a waveform frequency in real time by adopting a random frequency conversion algorithm when a self-heating condition is met; generating a voltage control signal with variable amplitude according to the waveform frequency; and controlling a motor in real time according to the voltage control signal so as to realize self-heating of the power battery. According to the technical scheme, the motor noise in the self-heating process of the power battery is reduced.

    本发明提供了一种动力电池自加热控制方法、装置、介质及汽车,该方法包括:当满足自加热条件时,采用随机变频算法实时确定波形频率;根据所述波形频率生成幅值变化的电压控制信号;根据所述电压控制信号实时控制电机,以实现动力电池自加热。本发明的技术方案降低了动力电池自加热过程中的电机噪音。


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    Title :

    Power battery self-heating control method and device, medium and automobile


    Additional title:

    一种动力电池自加热控制方法、装置、介质及汽车


    Contributors:
    GUO JIANTAO (author) / WANG RUIGUANG (author) / YU YUE (author) / LIANG YILONG (author) / FENG WEIWEI (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 / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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