The present disclosure provides hybrid cell balancing for a high voltage battery pack. A method and apparatus according to an exemplary aspect of the present disclosure includes, among other things, the high voltage battery pack including at least a first module composed of a plurality of first battery cells, a second module composed of a plurality of second battery cells, and a third module composed of a plurality of third battery cells. A first passive battery management system monitors and balances the plurality of first battery cells, a second passive battery management system monitors and balances the plurality of second battery cells, and a third passive battery management system monitors and balances the plurality of third battery cells. A group manager measures a voltage of each of the first module, the second module, and the third module, compares the measured voltages of the first module, the second module, and the third module, and actively balances the lower charging modules from the first module, the second module, and the third module with the energy from the higher charging modules from the first module, the second module, and the third module.
本公开提供了“用于高压电池组的混合电池单元平衡”。一种根据本公开的示例性方面的方法和设备除其他外还包括高压电池组,其至少包括由多个第一电池单元组成的第一模块、由多个第二电池单元组成的第二模块和由多个第三电池单元组成的第三模块。第一被动电池管理系统监测和平衡多个第一电池单元,第二被动电池管理系统监测和平衡多个第二电池单元,并且第三被动电池管理系统监测和平衡多个第三电池单元。组管理器测量第一模块、第二模块和第三模块中的每一者的电压,比较第一模块、第二模块和第三模块的所测量的电压,并且主动地用来自第一模块、第二模块和第三模块的较高充电模块的能量来平衡来自第一模块、第二模块和第三模块的较低充电模块。
HYBRID CELL BALANCING FOR HIGH VOLTAGE BATTERY PACKS
用于高压电池组的混合电池单元平衡
2021-05-18
Patent
Electronic Resource
Chinese
IPC: | 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 |
Fault Mitigation and Cell Balancing of High Power Lithium Ion Battery Packs
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