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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9774197 B1

PDFFull Text
Expired
Date of Patent:
Sep. 26, 2017

Filed:

Feb. 22, 2017

Battery internal short-circuit detection method based on cell charge balancing

Applicant:

Bordrin Motor Corporation, Southfield, MI (US);

Inventors:

Yonghua Li, Ann Arbor, MI (US);

Zhiwei Zhang, Shanghai, CN;

Assignee:

BORDRIN MOTOR CORPORATION, INC., Southfield, MI (US);

Attorney:

Brinks Gilson & Lione

Primary Examiner:

Edward Tso

Assistant Examiner:

Ahmed Omar

Int. Cl.
CPC ...
H02J 7/00 (2006.01); H01M 2/34 (2006.01); H01M 10/48 (2006.01); H01M 2/10 (2006.01); B60L 11/18 (2006.01); G01R 31/02 (2006.01); G01R 31/36 (2006.01); G01R 31/00 (2006.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0026 (2013.01); B60L 11/1861 (2013.01); B60L 11/1866 (2013.01); G01R 31/007 (2013.01); G01R 31/025 (2013.01); G01R 31/3679 (2013.01); H01M 2/1077 (2013.01); H01M 2/34 (2013.01); H01M 10/482 (2013.01); H02J 7/0019 (2013.01); H01M 2010/4271 (2013.01); H01M 2220/20 (2013.01);
Abstract

An internal short-circuit detection method for a battery cell of a battery pack is determined using a battery cell charge balancing resistor and switch. The switch is used for connecting or disconnecting the battery cell charge balancing resistor to the battery cell. Evolution of discharging of the battery with the battery cell-charge balancing resistor connected to the battery cell is monitored to measure an internal short-circuit resistance of the battery cell for estimating the state of the internal short-circuit.

Find Patent Forward Citations

Li, Yonghua. (2017). Battery internal short-circuit detection method based on cell charge balancing (U.S. Patent No. 9774197). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9774197

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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