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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 9780577 B1

PDFFull Text
Date of Patent:
Oct. 03, 2017

Filed:

May. 13, 2015

Electric power supply control device and electric power supply control method

Applicant:

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

Inventors:

Takeaki Suzuki, Susono, JP;

Masaki Matsunaga, Odawara, JP;

Kazuhito Eshima, Numazu, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Brian Ngo

Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 7/14 (2006.01); H02J 7/34 (2006.01); B60L 7/12 (2006.01); B60L 11/14 (2006.01); B60L 11/18 (2006.01); B60L 15/20 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0013 (2013.01); B60L 7/12 (2013.01); B60L 11/14 (2013.01); B60L 11/1861 (2013.01); B60L 11/1868 (2013.01); B60L 15/20 (2013.01); H02J 7/1423 (2013.01); H02J 7/34 (2013.01); B60L 2210/10 (2013.01); B60L 2240/421 (2013.01); B60L 2240/441 (2013.01); B60L 2240/547 (2013.01); B60L 2240/549 (2013.01); B60L 2260/26 (2013.01); Y02T 10/645 (2013.01); Y02T 10/70 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7044 (2013.01); Y02T 10/7066 (2013.01); Y02T 10/7077 (2013.01); Y02T 10/7216 (2013.01); Y02T 10/7275 (2013.01);
Abstract

Provided is an electric power supply control device for an electric power supply apparatus including a plurality of storage batteries and an electric power generator performing charging of the plurality of storage batteries, the electric power supply control device controlling a parallel connection between the plurality of storage batteries. Voltage adjustment by one of a) charging processing by electric power feeding from the electric power generator to the storage battery having the lowest output voltage among the plurality of storage batteries and b) discharging processing by electric power feeding from the storage battery having the highest output voltage among the plurality of storage batteries to a load circuit connected to the storage battery having the highest output voltage is performed. Parallel connection is performed in a case where output voltage difference between the plurality of storage batteries becomes equal to or less than a previously-determined threshold.

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