Method and device for adjusting state of charge of battery system
Method and device for adjusting state of charge of battery system
The invention provides a state-of-charge adjusting method and device for a battery system, and the method comprises the steps: obtaining a target cumulative throughput of the battery system during the service life, and building battery aging curves of a first system battery and a second system battery in different states of charge, the battery aging curve is used for representing a mapping relation between the residual capacity of the battery and the accumulated throughput, and determining a plurality of target throughput segmented intervals and a battery aging curve corresponding to each target throughput segmented interval according to the battery aging curves of the first system battery and the second system battery in different charge states, and determining a target throughput interval corresponding to the target cumulative throughput, and adjusting the charge state of the first system battery or the second system battery according to a battery aging curve corresponding to the target throughput interval. According to the invention, the accuracy of the overall state of charge evaluation of the battery system can be improved, and the battery system can be ensured not to be affected by the aged battery while maintaining the maximum capacity release.
本申请提供了一种电池系统的荷电状态调节方法以及装置，包括：获取电池系统在使用寿命期间的目标累计吞吐量，建立第一体系电池和第二体系电池在不同荷电状态下的电池老化曲线，电池老化曲线用于表示电池剩余容量与累计吞吐量之间的映射关系，根据第一体系电池和第二体系电池在不同荷电状态下的电池老化曲线，确定多个目标吞吐量分段区间以及每个目标吞吐量分段区间对应的电池老化曲线，确定出目标累计吞吐量对应的目标吞吐量区间，并根据目标吞吐量区间对应的电池老化曲线，调整第一体系电池或第二体系电池的荷电状态。本申请不仅可以提高电池系统的整体荷电状态评估的准确性，还可以保证电池系统在保持最大容量释放的同时不受老化电池的影响。
Document information
Method and device for adjusting state of charge of battery system
一种电池系统的荷电状态调节方法以及装置
2023-04-07
Patent
Electronic Resource
Chinese
| IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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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