Title:
METHOD AND APPARATUS FOR CALCULATING STATE OF HEALTHY OF POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/202491
Kind Code:
A1
Abstract:
A method and apparatus for calculating a state of healthy of a power supply system, relating to the technical field of power supply state of healthy evaluation. In the method, charging group data is extracted from a large amount of charging and discharging data; static voltage data is screened from the charging group data and a plurality of pieces of data prior to charging grouping; a real state of charge (SOC) corresponding to the static voltage data can be determined by using the static voltage data and an SOC-OCV relationship; after the real SOC is obtained, the SOC is corrected and compensated, so as to obtain a real SOC of the highest cell at the start of charging and a real SOC of the lowest cell at the start of charging; in combination with the charging capacity of this charging, a state of healthy of the highest cell can be calculated; finally, considering the consistency between batteries, the state of healthy of the power supply system is calculated. Therefore, the calculation accuracy of the state of healthy of the power supply system is effectively improved.
Inventors:
ZHOU XUESONG (CN)
LI YUNXIAO (CN)
CHEN YUQING (CN)
LI JING (CN)
LI YUNXIAO (CN)
CHEN YUQING (CN)
LI JING (CN)
Application Number:
PCT/CN2023/088442
Publication Date:
October 26, 2023
Filing Date:
April 14, 2023
Export Citation:
Assignee:
YUTONG BUS CO LTD (CN)
International Classes:
G01R31/392
Foreign References:
| CN109557477A | 2019-04-02 | |||
| CN112147513A | 2020-12-29 | |||
| CN108732503A | 2018-11-02 | |||
| CN111983495A | 2020-11-24 | |||
| CN114035072A | 2022-02-11 | |||
| CN114050633A | 2022-02-15 | |||
| CN114089207A | 2022-02-25 | |||
| EP3258282A1 | 2017-12-20 | |||
| US20180236890A1 | 2018-08-23 |
Attorney, Agent or Firm:
ZHENGZHOU RUIXIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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