The invention provides a battery charging method and device, a battery management system and an electric vehicle, the method is applied to the battery management system, and the method comprises the following steps: in a constant voltage charging mode, sending a request voltage to power supply equipment; the current battery current is obtained every preset period; and if the current battery current is not equal to the battery demand current, adjusting the request voltage, and sending the adjusted request voltage to the power supply equipment. The battery charging time can be shortened, and the charging efficiency is improved.

    本发明提供了一种电池充电方法、装置、电池管理系统及电动汽车,该方法应用于电池管理系统,包括:在恒压充电模式下,向供电设备发送请求电压;每间隔预设周期,获取当前电池电流;如果当前电池电流不等于电池需求电流,则对请求电压进行调节,并将调节后的请求电压发送至供电设备。本发明可以减少电池充电时间,提高充电效率。


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    Title :

    Battery charging method and device, battery management system and electric vehicle


    Additional title:

    电池充电方法、装置、电池管理系统及电动汽车


    Contributors:
    ZHENG LEI (author)

    Publication date :

    2023-07-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen