The invention discloses a power battery system discharging optimization control method, a battery management system and an automobile, and the method comprises the steps: S1, obtaining the current lowest battery cell capacity and the current highest battery cell capacity in a power battery system after the power battery system carries out charging and discharging circulation for a first set number of times; s2, correcting a discharge cut-off SOC set by the power battery system based on the lowest battery cell capacity and the highest battery cell capacity to obtain a corrected discharge cut-off SOC; and S3, controlling the discharging process of the power battery system according to the corrected discharging cut-off SOC, and returning to S1. According to the invention, on the premise of reasonability and safety, the power battery system can better release own capacity, and the discharge electric quantity is improved.

    本发明公开了一种动力电池系统放电优化控制方法、电池管理系统及汽车,该方法包括:步骤S1:在动力电池系统进行充放电循环第一设定次数后,获取动力电池系统内部当前的最低电芯容量和最高电芯容量;步骤S2:基于所述最低电芯容量和所述最高电芯容量对动力电池系统设置的放电截止SOC进行修正,获得修正后的放电截止SOC;步骤S3:按照修正后的放电截止SOC对动力电池系统的放电过程进行控制,并返回S1。本发明能够实现在合理、安全的前提下,使动力电池系统更好的释放自己的能力,提升放电电量。


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    Title :

    Power battery system discharge optimization control method, battery management system and automobile


    Additional title:

    动力电池系统放电优化控制方法、电池管理系统及汽车


    Contributors:

    Publication date :

    2024-06-21


    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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