Title:
METHOD, DEVICE AND SYSTEM FOR ESTIMATING STATE OF POWER OF BATTERY, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2020/259096
Kind Code:
A1
Abstract:
A method, a device and a system for estimating the state of power of a battery, and a storage medium. The method comprises: determining a current state of charge (SOC) value of a battery and a current battery temperature (S210); acquiring operating condition data of the battery (S220); processing the operating condition data to obtain a hysteresis coefficient of the battery, so as to estimate the state of power of the battery according to the correlation between the state of power of the battery and the current SOC value, the current battery temperature and the hysteresis coefficient (S230). The method for estimating the state of power can improve the accuracy of estimating the state of power of a battery having hysteresis characteristics.
Inventors:
LI SHICHAO (CN)
TANG SHENZHI (CN)
DU MINGSHU (CN)
RUAN JIAN (CN)
LU YANHUA (CN)
ZHANG WEI (CN)
TANG SHENZHI (CN)
DU MINGSHU (CN)
RUAN JIAN (CN)
LU YANHUA (CN)
ZHANG WEI (CN)
Application Number:
PCT/CN2020/089370
Publication Date:
December 30, 2020
Filing Date:
May 09, 2020
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
G01R31/36; G01R31/382
Foreign References:
| CN110967637A | 2020-04-07 | |||
| CN106842038A | 2017-06-13 | |||
| CN108072844A | 2018-05-25 | |||
| CN108196200A | 2018-06-22 | |||
| CN105301509A | 2016-02-03 | |||
| CN108363009A | 2018-08-03 | |||
| US10073147B2 | 2018-09-11 |
Other References:
CHENG ZE, XINGMIAN SUN, SILU CHENG: "Method for Estimation of State of Charge and Power Prediction of Lithium-Ion Battery", TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY, vol. 32, no. 15, 1 August 2017 (2017-08-01), pages 180 - 189, XP055771659, ISSN: 1000-6753, DOI: 10.19595/j.cnki.1000-6753.tces.160557
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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