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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 9963040 B1

PDFFull Text
Date of Patent:
May. 08, 2018

Filed:

Sep. 13, 2012

Non-contact power supply system, and power transmission device and vehicle used therein

Applicants:

Naoki Gorai, Toyota, JP;

Shinji Ichikawa, Toyota, JP;

Tadashi Kondo, Okazaki, JP;

Inventors:

Naoki Gorai, Toyota, JP;

Shinji Ichikawa, Toyota, JP;

Tadashi Kondo, Okazaki, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

Attorney:

Oliff PLC

Primary Examiner:

Thomas J Hiltunen

Int. Cl.
CPC ...
B60L 11/18 (2006.01); H02J 50/90 (2016.01); H02J 50/40 (2016.01); H02J 50/12 (2016.01); B60L 3/00 (2006.01); H02J 5/00 (2016.01); H02J 7/02 (2016.01);
U.S. Cl.
CPC ...
B60L 11/182 (2013.01); B60L 3/00 (2013.01); B60L 11/1803 (2013.01); B60L 11/1829 (2013.01); B60L 11/1833 (2013.01); B60L 11/1835 (2013.01); B60L 11/1838 (2013.01); H02J 5/005 (2013.01); H02J 7/025 (2013.01); H02J 50/12 (2016.02); H02J 50/40 (2016.02); H02J 50/90 (2016.02); B60L 2210/10 (2013.01); B60L 2210/30 (2013.01); B60L 2210/40 (2013.01); B60L 2230/00 (2013.01); B60L 2230/16 (2013.01); B60L 2240/62 (2013.01); B60L 2250/10 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7088 (2013.01); Y02T 10/7216 (2013.01); Y02T 10/7241 (2013.01); Y02T 10/7291 (2013.01); Y02T 90/121 (2013.01); Y02T 90/122 (2013.01); Y02T 90/125 (2013.01); Y02T 90/127 (2013.01); Y02T 90/128 (2013.01); Y02T 90/14 (2013.01); Y02T 90/16 (2013.01); Y02T 90/162 (2013.01); Y02T 90/163 (2013.01);
Abstract

A non-contact power supply system supplies electric power in a non-contact manner from a power transmission device to a vehicle. The power transmission device includes an impedance adjusting unit configured to adjust an impedance between a power supply unit and a power transmission unit. A vehicle ECU assists an alignment between the power transmission unit and the power receiving unit in the parking operation based on a power transmission efficiency between the power transmission unit and the power receiving unit. A power transmission ECU, at the time of the alignment in the parking operation, controls the impedance adjusting unit based on a distance between the power transmission unit and the power receiving unit in a vertical direction (vehicle height). Accordingly, lowering of the power transmission efficiency caused by a change in an impedance along with a change in the vehicle height can be suppressed.

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