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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 8947055 B1

PDFFull Text
Date of Patent:
Feb. 03, 2015

Filed:

Sep. 27, 2010

Battery control system

Applicants:

Tomoyoshi Ueki, Toyota, JP;

Yukihiro Okada, Shijonawate, JP;

Inventors:

Tomoyoshi Ueki, Toyota, JP;

Yukihiro Okada, Shijonawate, JP;

Assignee:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Attorney:

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Primary Examiner:

Phallaka Kik

Int. Cl.
CPC ...
H02J 7/04 (2006.01); H02J 7/16 (2006.01); B60L 11/00 (2006.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); H02J 7/00 (2006.01); H01M 10/42 (2006.01); B60L 11/18 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0052 (2013.01); H01M 10/42 (2013.01); H01M 10/44 (2013.01); H01M 10/48 (2013.01); B60L 11/185 (2013.01); B60L 11/1861 (2013.01); H02J 7/04 (2013.01); H02J 7/16 (2013.01); H02J 7/0057 (2013.01); B60L 2240/545 (2013.01); B60L 2240/549 (2013.01); Y02T 10/7088 (2013.01); Y02T 10/7011 (2013.01); Y02T 90/14 (2013.01); Y02T 90/128 (2013.01); Y02T 10/7005 (2013.01); B60L 2240/547 (2013.01); B60L 2240/54 (2013.01); Y02T 10/7044 (2013.01); Y02T 10/705 (2013.01);
Abstract

A battery control system includes a lithium ion secondary battery and a control device and further includes a voltage storage unit, a resistance storage unit, a current storage unit, a difference obtaining unit for obtaining a difference resistance ΔR(T) between a normal internal resistance R(T) at a predetermined battery temperature Tin a normal temperature range ATand an initial internal resistance R(T) at the predetermined battery temperature, and a maximum voltage calculation unit for giving a maximum inter-terminal voltage V(T), when at least a battery temperature T is within a low-temperature range AT, as a value obtained by adding a product of the difference resistance ΔR(T) and the allowable charging current I(T) to the initial maximum inter-terminal voltage V(T).

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