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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 9373971 B1

PDFFull Text
Date of Patent:
Jun. 21, 2016

Filed:

Apr. 11, 2013

Vehicle, power transmitting device and contactless power supply system

Applicants:

Shinji Ichikawa, Toyota, JP;

Tadashi Kondo, Okazaki, JP;

Naoki Gorai, Toyota, JP;

Inventors:

Shinji Ichikawa, Toyota, JP;

Tadashi Kondo, Okazaki, JP;

Naoki Gorai, Toyota, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

Attorney:

Oliff PLC

Primary Examiner:

Alexis A Boateng

Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 7/14 (2006.01); B60L 11/18 (2006.01); H02J 7/02 (2016.01); B60L 11/00 (2006.01); B60L 11/14 (2006.01); B60L 15/20 (2006.01); H02J 5/00 (2016.01);
U.S. Cl.
CPC ...
H02J 7/007 (2013.01); B60L 11/005 (2013.01); B60L 11/14 (2013.01); B60L 11/182 (2013.01); B60L 11/1833 (2013.01); B60L 15/2009 (2013.01); H02J 7/025 (2013.01); B60L 2210/10 (2013.01); B60L 2210/30 (2013.01); B60L 2210/40 (2013.01); B60L 2220/14 (2013.01); B60L 2240/423 (2013.01); H02J 5/005 (2013.01); Y02T 10/645 (2013.01); Y02T 10/70 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7022 (2013.01); Y02T 10/7072 (2013.01); Y02T 10/7077 (2013.01); Y02T 10/7216 (2013.01); Y02T 10/7241 (2013.01); Y02T 10/7275 (2013.01); Y02T 90/12 (2013.01); Y02T 90/121 (2013.01); Y02T 90/122 (2013.01); Y02T 90/125 (2013.01); Y02T 90/127 (2013.01); Y02T 90/14 (2013.01);
Abstract

A contactless power supply system contactlessly transmits electric power from a power transmitting device to a vehicle. The vehicle includes: a power receiving unit that contactlessly receives electric power from the power transmitting device; an electrical storage device that stores electric power received by the power receiving unit; and an impedance adjustment unit that includes a DC/DC converter and a relay and that is used to adjust an impedance between the power receiving unit and the electrical storage device. A vehicle ECU switches between a power supply path of which the impedance is adjusted by the DC/DC converter and a power supply path that does not use the DC/DC converter on the basis of a state of charge of the electrical storage device.

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