The invention discloses a battery balance remaining time calculation method and device and a battery management system.The method comprises the steps that when a power battery meets a static OCV correction condition, the remaining charging capacity of each single battery in the power battery is calculated, the power battery comprises n single batteries, the residual charging capacity is the residual capacity of the single battery when the single battery is fully charged; obtaining the maximum residual charging capacity in the residual charging capacities of the n single batteries; according to the residual charging capacity of the n single batteries and the maximum residual charging capacity, calculating the capacity needing to be equalized of each single battery; and calculating the balance remaining time of each single battery according to the capacity and the balance current which need to be balanced of the n single batteries. According to the technical scheme, more accurate balance remaining time can be obtained through calculation, and therefore it is guaranteed that all the single batteries reach the balance target of upper alignment at the end of balance.
本发明公开了一种电池均衡剩余时间的计算方法、装置及电池管理系统,所述方法包括:当动力电池满足静态OCV修正条件时,计算所述动力电池中的每一个单体电池的剩余充电容量,所述动力电池中包括n个单体电池,所述剩余充电容量为单体电池距离自身充满电的剩余容量;获取所述n个单体电池的剩余充电容量中的最大剩余充电容量;根据所述n个单体电池的剩余充电容量和所述最大剩余充电容量,计算每一个单体电池需要均衡掉的容量;根据所述n个单体电池需要均衡掉的容量和均衡电流,计算每一个单体电池的均衡剩余时间。采用本发明的技术方案能够计算获得更加精确的均衡剩余时间,从而保证各个单体电池在均衡结束时达到“上对齐”的均衡目标。
Calculation method and device of battery balance remaining time and battery management system
一种电池均衡剩余时间的计算方法、装置及电池管理系统
2022-12-13
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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