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Patent Searching and Data


Title:
METHOD AND SYSTEM FOR PERFORMING MODELING AND ESTIMATION OF BATTERY CAPACITY
Document Type and Number:
WIPO Patent Application WO/2019/018974
Kind Code:
A1
Abstract:
A method for performing modeling of battery capacity, comprising: acquiring charging data, so as to generate a capacity increment curve; selecting a parameter related to the peak of the capacity increment curve as an independent variable, and selecting an available battery capacity as a dependent variable, so as to form a data set; establishing a regression model for the battery capacity, and training and optimizing the regression model on the basis of the data set, so as to obtain an optimized regression model. Compared with the prior art, the provided method can determine, on the basis of the mathematical model of the battery capacity established according to data collected in normal daily charging processes (which only requires partial charging processes), a battery capacity, especially the capacity of each battery cell in the battery pack in an EV/HEV.

Inventors:
ZHANG CAIPING (CN)
GUO QIPEI (CN)
JIANG JIUCHUN (CN)
ZHANG WEIGE (CN)
GAO YANG (CN)
JIANG YAN (CN)
XIAO PENGFEI (CN)
Application Number:
PCT/CN2017/094036
Publication Date:
January 31, 2019
Filing Date:
July 24, 2017
Export Citation:
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Assignee:
BOSCH GMBH ROBERT (DE)
UNIV BEIJING JIAOTONG (CN)
International Classes:
G01R31/36; H01M10/42
Foreign References:
CN105789716A2016-07-20
CN103035961A2013-04-10
CN103278777A2013-09-04
Other References:
SUN PEIKUN: "Research of State of Health Estimation Method for Electric Vehicle Lithium-ion Power Battery", BEIJING INSTITUTE OF TECHNOLOGY-SCHOOL OF MECHANICAL ENGINEERING - MASTER'S THESIS, 2016-01, XP055676847, ISSN: 1674-0246
Attorney, Agent or Firm:
NTD PATENT AND TRADEMARK AGENCY LIMITED (CN)
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