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:
Sep. 13, 2022
Filed:
Apr. 05, 2019
Sanyo Electric Co., Ltd., Osaka, JP;
Masato Nakayama, Hyogo, JP;
Hidetsugu Mukae, Hyogo, JP;
Yousuke Nakagawa, Hyogo, JP;
Masanori Ito, Hyogo, JP;
SANYO Electric Co., Ltd., Daito, JP;
Abstract
In order to improve safety while suppressing a decrease in efficiency of an equalizing process between a plurality of cells, controller executes an equalizing process between a plurality of cells by controlling a plurality of discharge circuits based on voltages of the plurality of cells measured by voltage measurement unit. Anomaly determination circuit determines whether or not the voltage of each of cells measured by voltage measurement unit is within a normal range. Controller includes, for each first cycle, a first discharge suspension period during which the voltages of the plurality of cells are measured without an influence of the equalizing process during execution of the equalizing process between the plurality of cells and includes, for each second cycle longer than the first cycle, a second discharge suspension period during which a determination result according to anomaly determination circuit is fixed.