METHOD AND APPARATUS FOR ACQUIRING STATE OF HEALTH OF BATTERY, AND STORAGE MEDIUM

WIPO Patent Application WO/2021/258657

A1

A method and apparatus for acquiring the state of health of a battery, and a storage medium. The method comprises: when a vehicle is powered on, determining whether capacity variation calculation conditions are met (101); when it is determined that the capacity variation calculation conditions are met, calculating a capacity variation (102); when the vehicle is powered on, determining whether capacity calculation conditions are met (103); when it is determined that the capacity calculation conditions are met, calculating a capacity (104); and calculating the state of health of a battery according to the capacity variation and the capacity (105). By means of the method, the apparatus and the storage medium, a correlation between the number of cycles in the full life cycle of a battery and the SOH thereof does not need to be measured, thereby saving test resources and time; and the actual capacity aging degree of the battery is more realistically reflected, thereby improving estimation precision regarding a state of charge and a driving mileage, and providing a good driving experience for users.

YOU SHIYUN (CN)
LIU HAIYANG (CN)
MAO JUN (CN)

PCT/CN2020/135129

December 30, 2021

December 10, 2020

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GUANGZHOU CHENGXING ZHIDONG MOTORS TECH CO LTD (CN)
GUANGZHOU XIAOPENG MOTORS TECH CO LTD (CN)

G01R31/392

CN108061863A	2018-05-22
CN111736083A	2020-10-02
CN103675704A	2014-03-26
CN111123138A	2020-05-08
CN110568375A	2019-12-13
US20150276887A1	2015-10-01
CN202010588936A	2020-06-24

See also references of EP 3951408A4

SHENZHEN ZHIQUAN INTELLECTUAL PROPERTY OFFICE (CN)

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