logo

For the Inventor, By the Inventor

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 10686229 B1

PDFFull Text
Date of Patent:
Jun. 16, 2020

Filed:

Jun. 12, 2015

Battery state detection device, secondary battery system, program product, and battery state detection method

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, Ibaraki-ken, JP;

Attorney:

Crowell & Moring LLP

Primary Examiner:

Michael P Nghiem

Assistant Examiner:

Dacthang P Ngo

Int. Cl.
CPC ...
H01M 10/42 (2006.01); B60L 3/00 (2019.01); G01R 31/36 (2020.01); B60L 58/21 (2019.01); B60L 58/13 (2019.01); G01R 31/392 (2019.01); H01M 10/48 (2006.01); H02J 7/00 (2006.01); G01R 31/3828 (2019.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 10/4285 (2013.01); B60L 3/0038 (2013.01); B60L 58/13 (2019.02); B60L 58/21 (2019.02); G01R 31/36 (2013.01); G01R 31/3648 (2013.01); G01R 31/3828 (2019.01); G01R 31/392 (2019.01); H01M 10/0525 (2013.01); H01M 10/48 (2013.01); H01M 10/486 (2013.01); H02J 7/00 (2013.01); B60L 2240/545 (2013.01); B60L 2240/547 (2013.01); B60L 2240/549 (2013.01); H01M 2220/20 (2013.01); Y02E 60/122 (2013.01); Y02T 10/7011 (2013.01); Y02T 10/7044 (2013.01); Y02T 10/7061 (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 permissible current determining unit configured to determine a permissible current of the battery corresponding to the battery state on the basis of at least one of the first permissible current and the second permissible current.

Find Patent Forward Citations

Loading…