The invention discloses a power battery self-heating control method, device and equipment and a storage medium, and the method comprises the steps: adjusting a quadrature-axis voltage signal of a motor to zero, and controlling an inverter to output a three-phase current; obtaining a current direct-axis voltage signal of the motor and a current maximum current value of the three-phase current, wherein the current direct-axis voltage signal is an alternating voltage signal; judging whether a termination condition is met or not; the termination condition comprises that the amplitude of the current direct-axis voltage signal is not less than a preset amplitude limit value, and/or the current maximum current value is not less than a preset maximum current limit value; if not, increasing the amplitude of the current direct-axis voltage signal, and returning to the step of acquiring the current direct-axis voltage signal of the motor and the current maximum current value of the three-phase current; if yes, the motor is controlled to work according to the amplitude of the current direct-axis voltage signal, and the motor is used for heating the power battery. According to the scheme, the self-heating of the battery is realized by controlling the amplitude of the current direct-axis voltage signal under the condition of not increasing vehicle-mounted hardware.

    本申请公开了一种动力电池自加热的控制方法、装置、设备及存储介质,该方法包括:将电机的交轴电压信号调整为零,并控制逆变器输出三相电流;获取电机的当前直轴电压信号和三相电流的当前最大电流值,当前直轴电压信号为交变电压信号;判断是否满足终止条件;终止条件包括:当前直轴电压信号的幅值不小于预设幅值限值,和/或,当前最大电流值不小于预设最大电流限值;若否,则增大当前直轴电压信号的幅值,并返回获取电机的当前直轴电压信号和三相电流的当前最大电流值的步骤;若是,则根据当前直轴电压信号的幅值控制电机工作,以利用电机加热动力电池。本方案在不增加车载硬件的情况下,通过控制当前直轴电压信号的幅值实现了电池的自加热。


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    Title :

    Power battery self-heating control method, device and equipment and storage medium


    Additional title:

    动力电池自加热的控制方法、装置、设备及存储介质


    Contributors:
    QU BIN (author) / CHEN HUAJIN (author) / DING QING (author) / FANG CHENG (author) / TANG ZHIYAO (author)

    Publication date :

    2023-09-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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