The invention provides a method and device for determining and displaying a state of charge and a battery management chip, and relates to the field of battery management. The method comprises the following steps: acquiring an actual voltage of an ith system battery cell in a target battery pack at a current moment k, a charging cut-off voltage of the ith system battery cell and an actual voltage at a previous moment k-1; according to the actual voltage of the current moment k, the actual voltage of the previous moment k-1, the charging cut-off voltage, the display charge state of the target battery pack at the previous moment k-1 and the full charge display charge state of the target battery pack, determining the display charge state of the ith system cell in the target battery pack in the (n + 1) th display period; and determining the display charge state of the target battery pack in the (n + 1)-th display period according to the display charge states of all system cells in the target battery pack in the (n + 1)-th display period. Therefore, the display state of charge of the multi-system battery pack is determined, and the condition of jump of the display state of charge can be reduced.

    提供一种确定显示荷电状态的方法、装置和电池管理芯片,涉及电池管理领域。方法中,获取目标电池包中第i体系电芯在当前时刻k的实际电压、该第i体系电芯的充电截止电压和前一时刻k‑1的实际电压;根据该当前时刻k的实际电压、该前一时刻k‑1的实际电压、该充电截止电压、该目标电池包的前一时刻k‑1的显示荷电状态和该目标电池包的满充显示荷电状态,确定该目标电池包中的该第i体系电芯在第n+1个显示周期的显示荷电状态;根据该目标电池包中所有体系电芯在第n+1个显示周期的显示荷电状态,确定该目标电池包在第n+1个显示周期的显示荷电状态。进而确定多体系的电池包的显示荷电状态,能够降低显示荷电状态跳变的情况。


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    Titel :

    Method and device for determining and displaying state of charge and battery management chip


    Weitere Titelangaben:

    确定显示荷电状态的方法、装置和电池管理芯片


    Beteiligte:
    HUANG LEI (Autor:in) / CHEN CHEN (Autor:in) / ZHAO WEI (Autor:in)

    Erscheinungsdatum :

    2023-06-23


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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