The invention discloses a battery monitoring method, a controller and an electric vehicle. The accuracy of electric quantity detection of a low-voltage battery is improved. The battery monitoring method comprises the following steps: acquiring state information of the electric vehicle; judging whether the electric vehicle is in at least one scene in a preset scene group or not according to the state information; the preset scene group comprises a scene in which the electric vehicle is in a power-on state and a low-voltage battery of the electric vehicle is in a charging state, and a scene in which the electric vehicle is in a dormant state; if yes, the low-voltage battery is controlled to discharge through a preset load, and when the discharge duration reaches a first preset value, the electric quantity of the low-voltage battery is detected.

    本申请公开了一种电池监控方法、控制器和电动汽车,提高了低压电池电量检测的准确性。该电池监控方法包括:获取电动汽车的状态信息;根据所述状态信息判断电动汽车是否处于预设场景组中的至少一个场景;所述预设场景组包括:电动汽车处于上电状态且其低压电池处于充电状态的场景,电动汽车处于休眠状态的场景;若是,控制低压电池通过预设负载进行放电,当放电时长达到第一预设值时,检测低压电池的电量。


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    Title :

    Battery monitoring method, controller and electric vehicle


    Additional title:

    一种电池监控方法、控制器和电动汽车


    Contributors:
    ZHAO ZHENXING (author) / LI GUOLIANG (author) / SHI DENGRUI (author) / LIANG JINZHU (author)

    Publication date :

    2023-08-15


    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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