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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 11193986 B1

PDFFull Text
Date of Patent:
Dec. 07, 2021

Filed:

Jun. 18, 2018

Failure diagnostic device

Applicant:

Gs Yuasa International Ltd., Kyoto, JP;

Inventor:

Yuki Imanaka, Kyoto, JP;

Assignee:

GS Yuasa International Ltd., Kyoto, JP;

Attorney:

Alston & Bird LLP

Primary Examiner:

Daniel R Miller

Int. Cl.
CPC ...
G01R 31/327 (2006.01); H01M 10/42 (2006.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); H02J 7/00 (2006.01); G01R 31/50 (2020.01); G01R 31/54 (2020.01); G01R 31/56 (2020.01); G01R 31/52 (2020.01); G01R 31/3842 (2019.01);
U.S. Cl.
CPC ...
G01R 31/52 (2020.01); G01R 31/3277 (2013.01); G01R 31/3842 (2019.01); G01R 31/50 (2020.01); G01R 31/54 (2020.01); H01M 10/425 (2013.01); H01M 10/441 (2013.01); H01M 10/482 (2013.01); H02J 7/0016 (2013.01); H02J 7/0029 (2013.01); G01R 31/56 (2020.01); H01M 2010/4271 (2013.01);
Abstract

The present invention addresses the problem of diagnosing a failure of a discharge resistor, while suppressing deterioration of discharge capacity. Disclosed is a failure diagnostic device for a discharge circuitfor discharging electricity from an electricity storage element. The discharge circuitincludes a resistance circuitcomprising a plurality of resistor blocks B connected in parallel, and each of the resistor blocks B comprises a plurality of discharge resistors Ra, Rb connected in series. During the time when electricity is being discharged from the electricity storage element, the failure diagnostic device diagnosis a failure of the resistance circuiton the basis of a voltage or a current at a connection point P between the discharge resistors Ra, Rb.

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