The invention discloses a method for controlling charging current of a power battery in a fast charging process. The method comprises the following steps: acquiring the optimal charging current Imap of the battery according to the state of a battery pack before charging; after charging is started, acquiring a current Ir requested from the charging pile and a real-time charging current Ic of the battery according to the current Imap; calculating the current charging difference current Id of the battery pack, wherein Id = Image-Ic; and controlling and adjusting the output current Ir of the charging pile according to the current Id until the charging is finished. The method has the advantages that the charging time is reduced by adjusting and controlling the charging current, the charging speed is increased, the charging safety is improved, and the current is reduced or avoided from being too large.

    本发明公开了一种动力电池在快充过程中充电电流的控制方法,在充电开始前根据电池组的状态获取电池最佳充电电流Imap;在充电开始后,根据电流Imap获取向充电桩请求电流Ir以及电池的实时充电电流Ic;计算当前的电池组充电差额电流Id,其中Id=Imap‑Ic;根据电流Id大小来控制调整充电桩的输出电流Ir直至充电结束。本发明的优点在于:通过对充电电流进行调整控制来减少充电时间过长,提高充电速度且提高充电安全性,减少或避免电流过大。


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    Title :

    Charging current control method of power battery in fast charging process


    Additional title:

    一种动力电池在快充过程中充电电流的控制方法


    Contributors:
    XIAO XUFENG (author) / JIANG WENRAN (author) / YANG CHENJI (author)

    Publication date :

    2025-02-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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