The invention provides a battery equalization method and a battery equalization device, and relates to the technical field of battery management, and the method comprises the steps: obtaining the charge state of each battery in a battery pack under a target test condition; calculating the current capacity of each battery and the balance target capacity of the battery pack according to the charge state of each battery; respectively calculating a first to-be-balanced capacity of each battery according to a difference value between the current capacity of each battery and the balancing target capacity; and according to the first to-be-balanced capacity of each battery, controlling a balancing execution module in the battery pack balancing device to execute balancing operation on each battery, so that the capacity of each battery after the balancing operation reaches the balancing target capacity. On the basis of realizing capacity equalization of the battery pack, automatic equalization of the battery pack is realized, intervention of operators is reduced as much as possible, equalization accuracy of the battery pack is improved, serious capacity attenuation of the battery pack in subsequent application is avoided as much as possible, and performance of the battery pack is improved.

    本申请提供一种电池均衡方法以及电池均衡装置,涉及电池管理技术领域,其中,该方法包括:获取目标测试工况下电池包中各电池的荷电状态;根据各电池的荷电状态,计算各电池的当前容量,以及电池包的均衡目标容量;根据各电池的当前容量以及均衡目标容量的差值,分别计算各电池的第一待均衡容量;根据各电池的第一待均衡容量,控制电池包均衡装置中的均衡执行模块分别对各电池执行均衡操作,使得均衡操作后各电池的容量达到均衡目标容量。本申请可在实现电池包的容量均衡的基础上,实现电池包的自动化均衡,尽量减少了操作人员的介入,提高了电池包的均衡精确度,尽可能避免电池包在后续应用中容量的严重衰减,提高了电池包的性能。


    Access

    Download


    Export, share and cite



    Title :

    Battery pack balancing method and battery pack balancing device


    Additional title:

    电池包均衡的方法以及电池包均衡装置


    Contributors:
    LIU YONGSHAN (author) / LIU YIXIN (author) / ZHANG DI (author) / ZHANG WEIJIE (author) / HUO YANHONG (author) / ZHAI YIMING (author) / LANG JINFENG (author) / SUN XUETONG (author)

    Publication date :

    2024-05-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



    BATTERY PACK BALANCING CONTROLS FOR MULTIPLE BATTERY PACK SYSTEMS

    HASKARA IBRAHIM / ATLURI VENKATA PRASAD / BUCKNOR NORMAN K et al. | European Patent Office | 2024

    Free access

    BATTERY PACK CELL ACTIVE BALANCING

    TRNKA PAVEL | European Patent Office | 2018

    Free access

    BATTERY PACK ENERGY BALANCING DEVICE AND SYSTEM

    YANG RUI / LIU MING / LIU XIAOKANG | European Patent Office | 2020

    Free access

    CELL CAPACITY BASED BATTERY PACK BALANCING

    HU RUI / WANG RUI / WANG XU et al. | European Patent Office | 2022

    Free access

    Cell capacity based battery pack balancing

    HU RUI / WANG RUI / WANG XU et al. | European Patent Office | 2023

    Free access