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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 9746525 B1

PDFFull Text
Date of Patent:
Aug. 29, 2017

Filed:

Sep. 08, 2011

Battery system monitoring device

Applicants:

Akihiko Kudo, Hitachinaka, JP;

Mutsumi Kikuchi, Hitachinaka, JP;

Tomonori Kanai, Hitachinaka, JP;

Tatsumi Yamauchi, Hitachinaka, JP;

Akihiro Machida, Hitachinaka, JP;

Inventors:

Akihiko Kudo, Hitachinaka, JP;

Mutsumi Kikuchi, Hitachinaka, JP;

Tomonori Kanai, Hitachinaka, JP;

Tatsumi Yamauchi, Hitachinaka, JP;

Akihiro Machida, Hitachinaka, JP;

Assignee:

Hitachi Automotive Systems, Ltd., Ibaraki, JP;

Attorney:

Volpe and Koenig, P.C.

Primary Examiner:

Samuel Berhanu

Assistant Examiner:

Tarikh Rankine

Int. Cl.
CPC ...
G01R 31/36 (2006.01); H02J 7/00 (2006.01); H02J 7/16 (2006.01); B60L 11/18 (2006.01); H01M 10/48 (2006.01); B60L 3/00 (2006.01); B60L 3/04 (2006.01); B60L 7/14 (2006.01); B60L 11/14 (2006.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3624 (2013.01); B60L 3/0046 (2013.01); B60L 3/0069 (2013.01); B60L 3/04 (2013.01); B60L 7/14 (2013.01); B60L 11/14 (2013.01); B60L 11/187 (2013.01); B60L 11/1816 (2013.01); B60L 11/1859 (2013.01); B60L 11/1861 (2013.01); B60L 11/1866 (2013.01); B60L 11/1868 (2013.01); B60L 11/1877 (2013.01); H01M 10/482 (2013.01); H01M 10/486 (2013.01); H02J 7/0016 (2013.01); B60L 2200/26 (2013.01); B60L 2210/40 (2013.01); B60L 2240/36 (2013.01); B60L 2240/545 (2013.01); B60L 2240/547 (2013.01); B60L 2240/549 (2013.01); B60L 2240/662 (2013.01); G01R 31/3658 (2013.01); H01M 2010/4271 (2013.01); H01M 2220/20 (2013.01); Y02T 10/70 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7044 (2013.01); Y02T 10/7055 (2013.01); Y02T 10/7061 (2013.01); Y02T 10/7066 (2013.01); Y02T 10/7072 (2013.01); Y02T 10/7077 (2013.01); Y02T 10/7241 (2013.01); Y02T 10/7291 (2013.01); Y02T 90/127 (2013.01); Y02T 90/14 (2013.01); Y02T 90/16 (2013.01);
Abstract

A battery system monitoring device that monitors a battery system provided with a cell group having a plurality of battery cells connected in series with each other, including: a first control device that monitors and controls states of the plurality of battery cells of the cell group; a second control device that controls the first control device; a temperature detection unit that measures a temperature in the vicinity of the first control device; and a plurality of voltage detection lines, for measuring an inter-terminal voltage of the battery cell, which connect each of a positive electrode and a negative electrode of the battery cell and the first control device. The first control device includes a balancing switch, which performs balancing discharge of the battery cell for each of the battery cells.

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