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.

Date of Patent:
Nov. 26, 2019

Filed:

Oct. 21, 2016
Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventor:

Shunichi Kubo, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 10/48 (2006.01); G01R 31/396 (2019.01); H01M 10/42 (2006.01); G01R 31/04 (2006.01);
U.S. Cl.
CPC ...
H01M 10/482 (2013.01); G01R 31/04 (2013.01); G01R 31/396 (2019.01); H01M 10/425 (2013.01); H01M 10/4285 (2013.01); H01M 2220/20 (2013.01);
Abstract

An abnormality determination apparatus is applied to a battery pack including blocks composed of battery cells connected in series, and a connecting member that connect blocks to one another in series. In the blocks and the connecting member, a first detection circuit detects a voltage of a first series circuit including the connecting member. A closed-circuit forming unit forms a closed circuit so as to allow a current to flow to the connecting member. The closed circuit includes the connecting member, at least one of the battery cells, and a diode connected in parallel to connecting member. When a charge-discharge current is not flowing to the battery pack, a first abnormality determining unit determines whether or not an open abnormality has occurred in the connecting member, based on a detection value from the first detection circuit in a state in which the closed-circuit forming unit is forming the closed circuit.


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