logo

For the Inventor, By the Inventor

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 10173540 B1

PDFFull Text
Date of Patent:
Jan. 08, 2019

Filed:

Nov. 25, 2014

Contactless power transmission device

Applicant:

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

Inventors:

Satoshi Taniguchi, Toyota, JP;

Shinji Ichikawa, Toyota, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

Attorney:

Oliff PLC

Primary Examiner:

Jared Fureman

Assistant Examiner:

Emmanuel R Dominique

Int. Cl.
CPC ...
H02J 50/60 (2016.01); H02J 50/80 (2016.01); B60L 11/18 (2006.01); H02J 50/40 (2016.01); H02J 7/00 (2006.01); H02J 50/90 (2016.01); H02J 50/12 (2016.01); H02J 7/02 (2016.01); B60M 7/00 (2006.01);
U.S. Cl.
CPC ...
B60L 11/182 (2013.01); B60L 11/1831 (2013.01); B60L 11/1833 (2013.01); B60L 11/1846 (2013.01); H02J 7/0027 (2013.01); H02J 7/025 (2013.01); H02J 50/12 (2016.02); H02J 50/40 (2016.02); H02J 50/60 (2016.02); H02J 50/80 (2016.02); H02J 50/90 (2016.02); B60M 7/003 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7072 (2013.01); Y02T 90/121 (2013.01); Y02T 90/122 (2013.01); Y02T 90/125 (2013.01); Y02T 90/128 (2013.01); Y02T 90/14 (2013.01); Y02T 90/16 (2013.01); Y02T 90/163 (2013.01); Y02T 90/169 (2013.01); Y04S 30/14 (2013.01);
Abstract

A contactless power transmission device includes: a plurality of power transmission coil units; a plurality of detection units configured to detect a foreign substance on and around each power transmission coil unit; a communication unit configured to communicate with a vehicle; and a control unit configured to select one of the plurality of power transmission coil units based on information about a mounting position of a power reception device from the vehicle obtained by the communication unit, and to guide, when a detection unit detects a foreign substance at the selected power transmission coil unit, the vehicle toward a power transmission coil unit different from the selected power transmission coil unit, before the vehicle stops. This can prevent a reduction in power transfer efficiency due to a foreign substance or the like in a power transmission device including a plurality of power transmission coils.

Find Patent Forward Citations

Loading…