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:
Jul. 28, 2020

Filed:

Jun. 12, 2015
Applicant:

Vehicle Energy Japan Inc., Hitachinaka-shi, Ibaraki-ken, JP;

Inventors:

Youhei Kawahara, Tokyo, JP;

Masahiro Yonemoto, Tokyo, JP;

Keiichiro Ohkawa, Hitachinaka, JP;

Assignee:

Vehicle Energy Japan Inc., Hitachinaka-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/367 (2019.01); G01R 31/389 (2019.01); G01R 31/392 (2019.01); H02J 7/00 (2006.01); G01R 31/36 (2020.01); H01M 10/48 (2006.01); B60L 58/10 (2019.01); B60L 58/13 (2019.01);
U.S. Cl.
CPC ...
G01R 31/367 (2019.01); B60L 58/10 (2019.02); B60L 58/13 (2019.02); G01R 31/36 (2013.01); G01R 31/3648 (2013.01); G01R 31/389 (2019.01); G01R 31/392 (2019.01); H01M 10/482 (2013.01); H02J 7/00 (2013.01); B60L 2240/547 (2013.01); B60L 2240/549 (2013.01); B60L 2260/50 (2013.01); B60L 2260/54 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/705 (2013.01); Y02T 10/7044 (2013.01);
Abstract

A battery state detection device detects a battery state and includes: a first permissible current calculating unit configured to calculate a first permissible current of a battery based on a voltage of the battery detected by a voltage detecting unit; a second permissible current calculating unit configured to calculate a second permissible current of the battery without using the voltage of the battery; and a correction unit configured to compare the first permissible current and the second permissible current and to perform a predetermined correction process on the basis of the comparison result.


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