The invention relates to a charging control method and device for a power battery, a vehicle and a storage medium, and the method comprises the steps: charging the current power battery at a first preset rate based on a received charging instruction, and if a first frame latitude signal meeting a preset effective condition is received within a first preset duration, determining that the current power battery is charged; if the first frame of latitude signal is smaller than or equal to the preset latitude threshold value, continuing to charge based on the first preset multiplying power; and when the current battery voltage is greater than the first preset voltage threshold value, charging the power battery according to a second preset rate until the current battery voltage reaches a second preset voltage threshold value. Therefore, the problems that the charging current and the electric quantity are small, the battery capacity cannot be released in the maximum range, the charging voltage exceeds the battery cut-off voltage, consequently, the battery is subjected to swelling, short circuit and other damage, the use safety of the power battery is threatened, thermal management measures are imperfect, the battery is seriously heated in the charging process, or the battery pack is short-circuited due to lithium separation of a battery cell, and the service life of the battery pack is influenced are solved. And the cycle life of the battery is shortened.

    本发明涉及一种动力电池的充电控制方法、装置、车辆及存储介质,包括:基于接收到的充电指令,以第一预设倍率为当前动力电池进行充电,若在第一预设时长内接收到满足预设有效条件的第一帧纬度信号,且第一帧纬度信号小于或等于预设纬度阈值,继续基于第一预设倍率充电;在当前电池电压大于第一预设电压阈值时,按照第二预设倍率为动力电池充电,直至当前电池电压达到第二预设电压阈值。由此,解决了充入电流、电量偏小,无法最大范围释放电池能力,充电电压超过电池截止电压,导致电池发生鼓包、短路等损伤,威胁动力电池使用安全,热管理措施不完善,充电过程造成电池发热严重,或电芯析锂导致电池包内短路,降低电池循环寿命等问题。


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    Title :

    Charging control method and device of power battery, vehicle and storage medium


    Additional title:

    动力电池的充电控制方法、装置、车辆及存储介质


    Contributors:
    WANG DA'EN (author) / ZHU QIAN (author) / YAN RUI (author) / SHAO XIANYOU (author) / YU CHENG (author)

    Publication date :

    2023-04-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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