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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 9614399 B1

PDFFull Text
Date of Patent:
Apr. 04, 2017

Filed:

Dec. 21, 2012

Charging control device using in-vehicle solar cell

Applicant:

Seigen Maeno, Toyota, JP;

Inventor:

Seigen Maeno, Toyota, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

Attorney:

Oliff PLC

Primary Examiner:

Yalkew Fantu

Int. Cl.
CPC ...
H01M 10/44 (2006.01); H02J 7/35 (2006.01); B60L 11/18 (2006.01); B60L 3/00 (2006.01); B60L 7/14 (2006.01); B60L 8/00 (2006.01); B60L 11/00 (2006.01); B60L 11/12 (2006.01); B60L 11/14 (2006.01);
U.S. Cl.
CPC ...
H02J 7/35 (2013.01); B60L 3/0046 (2013.01); B60L 7/14 (2013.01); B60L 8/003 (2013.01); B60L 11/005 (2013.01); B60L 11/123 (2013.01); B60L 11/14 (2013.01); B60L 11/1809 (2013.01); B60L 11/1816 (2013.01); B60L 11/1868 (2013.01); B60L 2210/10 (2013.01); B60L 2210/40 (2013.01); B60L 2220/14 (2013.01); B60L 2240/12 (2013.01); Y02T 10/6217 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7022 (2013.01); Y02T 10/7066 (2013.01); Y02T 10/7072 (2013.01); Y02T 10/7077 (2013.01); Y02T 10/7083 (2013.01); Y02T 10/7216 (2013.01); Y02T 10/7241 (2013.01); Y02T 90/127 (2013.01); Y02T 90/14 (2013.01);
Abstract

A solar ECU included in a charging controller is configured to temporarily store electric power generated by an in-vehicle solar cell of an electric power supply unit in a low-voltage battery when a vehicle is traveling. Further, when the vehicle is traveling, a battery ECU included in the charging controller is configured to maintain a charging relay in an open state (disconnected state) so that the electric power temporarily stored in the low-voltage battery is not supplied to a main battery. On the other hand, when the vehicle is traveling, the solar ECU supplies the electric power temporarily stored in the low-voltage battery to a sub-battery.

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