Title:
METHOD AND APPARATUS FOR DETERMINING STATE OF CHARGE OF BATTERY, AND ELECTRONIC DEVICE AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/131086
Kind Code:
A1
Abstract:
Provided in the present application are a method and apparatus for determining the state of charge of a battery, and an electronic device and a storage medium. The method comprises: determining the number of charging/discharging cycles a battery has been subjected to between two corrections for the state of charge, a first state of charge of the battery before same is subjected to the current correction, and a second state of charge of the battery after same is subjected to the current correction, wherein the current correction is the second correction in the two corrections for the state of charge; according to the number of charging/discharging cycles, the first state of charge, the second state of charge, and a first unit system error that is obtained when the battery is subjected to the previous correction, determining a second unit system error of when the battery is subjected to the current correction, wherein the previous correction is the first correction in the two corrections for the state of charge; and on the basis of the second unit system error, correcting the state of charge of the battery after the current correction and before the next correction for the state of charge, so as to obtain a corrected state of charge of the battery. Therefore, the accuracy of calculation for the state of charge of a battery can be improved.
Inventors:
LI YUTAO (CN)
Application Number:
PCT/CN2022/144211
Publication Date:
July 13, 2023
Filing Date:
December 30, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
G01R31/382; G01R31/374; G01R31/3842
Foreign References:
| CN113608128A | 2021-11-05 | |||
| CN109061481A | 2018-12-21 | |||
| CN110888065A | 2020-03-17 | |||
| CN111965558A | 2020-11-20 | |||
| CN113484762A | 2021-10-08 | |||
| US20080030169A1 | 2008-02-07 |
Attorney, Agent or Firm:
BEIJING WEIFEI LIANCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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