The invention provides a battery passive equalization control method and device, a battery management system and a storage medium, and is suitable for the technical field of batteries, and the method comprises the steps: firstly, determining the equalization capacity needed by each cell of a battery, and obtaining the equalization capacity based on a preset internal resistance curve, a preset charging current and a preset charging time; then, when the equalization capacity meets a preset first equalization condition, equalization control is carried out on the current of each battery cell, and an equalization current integral of each battery cell is obtained; and finally, the equalization capacity is updated based on the equalization current integral, and the equalization control of the corresponding battery cell is closed until the update result of the equalization capacity meets a preset second equalization condition. The battery management system can perform equalization control on the battery cell in the charging mode, the discharging mode and the idle mode; and the equalization time of the battery core is prolonged, so that the service life of the battery is prolonged.

    本申请提供一种电池被动均衡控制方法、装置、电池管理系统及存储介质,适用于电池技术领域,该方法包括:首先确定电池的每个电芯所需的均衡容量,其中,所述均衡容量基于预设内阻曲线、预设充电电流以及预设充电时间获取;然后在所述均衡容量满足预设第一均衡条件时,对每个电芯的电流进行均衡控制,并获取每个电芯的均衡电流积分;最后基于所述均衡电流积分更新所述均衡容量,直至所述均衡容量的更新结果满足预设第二均衡条件时,关闭相应电芯的均衡控制,本申请的电池管理系统在充电模式、放电模式以及空闲模式这三种模型下均可以对电芯进行均衡控制,增加的电芯的均衡时间,进而提高了电池的使用寿命。


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    Title :

    Battery passive equalization control method and device, battery management system and storage medium


    Additional title:

    电池被动均衡控制方法、装置、电池管理系统及存储介质


    Contributors:
    XIA JIANFENG (author) / ZHENG HANG (author) / XU KAIFU (author) / FU HUAN (author)

    Publication date :

    2024-01-05


    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 / 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



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