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. 17, 2019
Filed:
Mar. 18, 2015
Applicant:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Inventors:
Manabu Uchino, Kanagawa, JP;
Narumi Arai, Kanagawa, JP;
Assignee:
MURATA MANUFACTURING CO., LTD, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/367 (2019.01); G01R 31/392 (2019.01); H01M 10/48 (2006.01); H01M 10/42 (2006.01); G01R 31/3842 (2019.01);
U.S. Cl.
CPC ...
G01R 31/367 (2019.01); G01R 31/392 (2019.01); H01M 10/4285 (2013.01); H01M 10/48 (2013.01); H01M 10/486 (2013.01); G01R 31/3842 (2019.01);
Abstract
A degradation state estimating device includes: a Q calculator that receives inputs of the voltage, the current, and the battery temperature of a secondary battery, and calculates a discharge capacity; an OCV calculator that calculates an open-circuit voltage (OCV) value; and an OCV curve estimator that estimates at least one OCV curve. A state-of-charge estimating device includes an SOC estimator that estimates a state of charge (SOC) from the OCV curve and the open-circuit voltage (OCV) value estimated by the degradation state estimating device.