The invention relates to the field of automobiles, in particular to a method for determining the state of charge of a power battery and related equipment. The method comprises the following steps: judging whether a power utilization scene of a target vehicle is a first scene or not; if yes, acquiring currently acquired first charge state information of the power battery; obtaining the output voltage and the output current of the DC converter; calculating second charge state information of the power battery based on the first charge state information, the output voltage and the output current; and determining the charge state of the power battery according to the second charge state information. And when the target vehicle is judged to be in the first scene, the charge state of the power battery is calculated according to the output voltage and the output current of the direct current converter, so that the accuracy of the charge state information is improved. On the premise that the hardware cost is not increased, the problem that in the prior art, when the residual electric quantity is calibrated, the displayed electric quantity abnormally jumps is solved.

    本发明涉及汽车领域,尤其涉及一种动力电池荷电状态确定方法及相关设备。其中,该方法包括:判断目标车辆的用电场景是否为第一场景;若是,则获取当前采集到的动力电池的第一荷电状态信息;获取直流变换器的输出电压以及输出电流;基于所述第一荷电状态信息、所述输出电压以及所述输出电流,计算所述动力电池的第二荷电状态信息;根据所述第二荷电状态信息确定所述动力电池的荷电状态。当判断目标车辆为第一场景时,根据直流变换器的输出电压以及输出电流来计算动力电池的荷电状态,进而提高了荷电状态信息的准确性。在不提高硬件成本的前提下,解决了现有技术中进行剩余电量校准时,显示电量异常跳变的情况。


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    Title :

    Power battery charge state determination method and related equipment


    Additional title:

    一种动力电池荷电状态确定方法及相关设备


    Contributors:
    LI LINZE (author) / SHAO JIE (author) / LU MEILING (author) / MENG XIN (author) / YAN ZHANGLAI (author)

    Publication date :

    2023-06-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen




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