公开(公告)号：US20230236261A1

公开(公告)日：2023-07-27

申请号：US18128703

申请日：2023-03-30

Applicant: BYD COMPANY LIMITED

Inventor： Yubo LIAN ,  Heping LING ,  Siliang CHEN ,  Zhengzheng WANG ,  Junzi LI

IPC: G01R31/392 ,  G01R31/367 ,  G01R31/387

CPC classification number: G01R31/392 ,  G01R31/367 ,  G01R31/387

Abstract: A method for acquiring a battery capacity, includes: acquiring multiple initial charging parameters of a battery when the battery is charged during a current charging process, where state of charge (SOC) of the battery in the current charging process changes for a range covering an SOC range, or a minimum charging temperature of the battery in the current charging process is greater than or equal to a temperature threshold; periodically acquiring multiple actual charging parameters of the battery during the current charging process and a current number of charging times corresponding to the current charging process; and acquiring, according to the multiple initial charging parameters, the multiple actual charging parameters, and the current number of charging times, a predicted battery capacity of the battery in a next charging process.