The invention discloses a battery adaptive equalization control method and a battery management system, and relates to the technical field of power battery management. The method specifically comprises the following steps: when the battery is in a natural discharge state, respectively acquiring the residual electric quantity of each battery cell in the battery at a first time node and a second time node, and calculating the difference value of each battery cell relative to the minimum residual electric quantity; based on the difference variation of the first time node and the second time node and the corresponding time interval, determining the self-discharge speed difference between each battery cell and the battery cell with the minimum residual electric quantity; and when the self-discharge speed difference of each battery cell exceeds a first threshold value, balancing the single battery cells exceeding the threshold value. The invention aims to realize a more efficient and flexible equalization scheme with adaptive capability so as to reduce the complexity of parameter configuration, improve the adaptive capability of a battery cell and enhance the intelligent level of a battery management system.
本发明公开了一种电池的自适应均衡控制方法及电池管理系统,涉及动力电池管理技术领域。具体包括以下步骤:在电池处于自然放电时,分别在第一时间节点和第二时间节点获取电池中各个电芯的剩余电量,并计算每个电芯相对于最小剩余电量的差值;基于所述第一时间节点和第二时间节点的差值变化量及其对应的时间间隔,确定各个电芯与最小剩余电量电芯的自放电速度差;当各个电芯自放电速度差超过第一阈值时,对超过阈值的单体电芯进行均衡。旨在实现更高效、灵活且具备自适应能力的均衡方案,以减少参数配置的复杂度,提高电芯适配能力,并增强电池管理系统的智能化水平。
Battery adaptive equalization control method and battery management system
一种电池的自适应均衡控制方法及电池管理系统
15.04.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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