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.:
Date of Patent:
Oct. 20, 2020
Filed:
Feb. 13, 2019
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H01M 10/44 (2006.01); H02H 7/18 (2006.01); G01R 31/392 (2019.01); H01M 10/48 (2006.01); G01R 31/396 (2019.01); G01R 31/3835 (2019.01);
U.S. Cl.
CPC ...
H02J 7/0026 (2013.01); G01R 31/3835 (2019.01); G01R 31/392 (2019.01); G01R 31/396 (2019.01); H01M 10/44 (2013.01); H01M 10/48 (2013.01); H02H 7/18 (2013.01); H02J 7/00 (2013.01); H02J 7/0021 (2013.01); H02J 7/0022 (2013.01);
Abstract
A smoothing unit smoothes a detected voltage of each power storage block based on previous data during a certain period. A calculator calculates a difference between a smoothing voltage of one power storage block in the n power storage blocks and a representative value of the smoothing voltages of the other power storage blocks or all the power storage blocks. A determination unit determines a power storage block whose difference against the representative value enlarges more than or equal to a set value during a predetermined period as a power storage block containing an abnormal power storage cell.