公开(公告)号：US11199589B2

公开(公告)日：2021-12-14

申请号：US16558290

申请日：2019-09-02

申请人： Tsinghua University

发明人： Dong-Xu Guo ,  Xu-Ning Feng ,  Yue-Jiu Zheng ,  Xue-Bing Han ,  Lan-Guang Lu ,  Ming-Gao Ouyang ,  Xiang-Ming He ,  Geng Yang

IPC分类号： G01R31/367 ,  G01R31/3842 ,  H01M10/42 ,  G01R31/00 ,  G01R31/392 ,  B60L53/00 ,  G01R31/378 ,  H01M6/50 ,  B60L58/00 ,  H01M10/44 ,  H02J7/00 ,  G01R31/382 ,  H02J3/32 ,  G01R31/396 ,  G01R31/388 ,  G01R31/385

摘要： A method for evaluating a consistency of a battery pack is provided, including: obtaining an initial/real rated capacity and an initial/real dischargeable electric quantity of each cell in a battery pack after a charge and discharge cycle of the battery pack; generating a first/second data diagram for every cells based upon the initial/real rated capacity and the initial/real dischargeable electric quantity; obtaining a first/second information of key cells in the first/second data diagram, defining an initial/real cell distribution region according to the first/second information by processing the first/second data diagram, and calculating a first/second area of the initial/real cell distribution region; and evaluating the consistency of the battery pack according to the first/second area. A strategy for balancing the battery pack is further provided.

公开(公告)号：US11196268B2

公开(公告)日：2021-12-07

申请号：US16558260

申请日：2019-09-02

申请人： Tsinghua University

发明人： Dong-Xu Guo ,  Xu-Ning Feng ,  Yue-Jiu Zheng ,  Xue-Bing Han ,  Lan-Guang Lu ,  Ming-Gao Ouyang ,  Xiang-Ming He ,  Geng Yang

IPC分类号： H02J7/00

摘要： A method for generating a data diagram is provided, including: obtaining a first data of each cell in a battery pack during a charge and discharge cycle of the battery pack; calculating a rated capacity and a dischargeable electric quantity of each cell based upon the data obtained; and generating a first data diagram for every cell of the battery pack based upon the rated capacity and the dischargeable electric quantity of each cell. A method for managing the battery pack based on the data diagram is further provided.