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Patent Searching and Data


Title:
METHOD, DEVICE AND SYSTEM FOR DETECTING BATTERY PACK CONSISTENCY
Document Type and Number:
WIPO Patent Application WO/2019/033391
Kind Code:
A1
Abstract:
A method, device and system for detecting battery pack consistency. The method for detecting battery pack consistency comprises: charging a battery pack to obtain charging data of collected battery cells; generating a capacity increment relation curve based on the obtained charging data; determining a plurality of capacity increment peaks according to the generated capacity increment relation curve, and calculating parameters corresponding to the corresponding capacity increment peaks; and detecting the battery pack consistency according to the calculated parameters corresponding to the corresponding capacity increment peaks. By the adoption of the method, device and system, the battery pack consistency can be detected and evaluated only in a normal charging process without an additional hardware or testing detecting the battery cells. Therefore, battery pack consistency detection and evaluation can be performed periodically when deep recharging is performed.

Inventors:
JIANG YAN (CN)
XIAO PENGFEI (CN)
JIANG JIUCHUN (CN)
ZHANG CAIPING (CN)
ZHANG WEIGE (CN)
GONG MINMING (CN)
WANG ZHANGUO (CN)
GAO YANG (CN)
Application Number:
PCT/CN2017/098031
Publication Date:
February 21, 2019
Filing Date:
August 18, 2017
Export Citation:
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Assignee:
BOSCH GMBH ROBERT (DE)
UNIV BEIJING JIAOTONG (CN)
International Classes:
G01R31/36
Foreign References:
CN103698714A2014-04-02
US20150066406A12015-03-05
CN105548907A2016-05-04
CN104614675A2015-05-13
Other References:
WANG ET AL.: "Study on Inconsistency of Lithium Titanate Battery in Rail Transportation", CHINESE JOURNAL OF POWER SOURCES, vol. 41, no. 2, 28 February 2017 (2017-02-28), pages 195 - 197
Attorney, Agent or Firm:
NTD PATENT AND TRADEMARK AGENCY LIMITED (CN)
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