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Title:
NON-CONTACT POWER SUPPLY DEVICE
Document Type and Number:
Japanese Patent JP2015073380
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a non-contact power supply device which enhances power supply efficiency in supplying power to a moving power reception coil in a non-contact manner.SOLUTION: A non-contact power supply device for supplying power to a running mobile body in a non-contact manner comprises: a power transmission coil 4 for transmitting power to a power reception coil 7 provided in the mobile body by using magnetic coupling in a non-contact manner; a power transmission circuit for supplying power from a power supply to the power transmission coil 4; measurement means for measuring a current flowing in the power transmission circuit or a voltage of the power transmission circuit; detection means for detecting the power reception coil 7 having entered a power transmissible range showing a range where power transmission from the power transmission coil 4 to the power reception coil 7 is possible, as coil entry, and detecting the reception coil 7 having exited from the power transmissible range, as coil exit; and control means for controlling power transmission from the power transmission coil 4 to the power reception coil 7. The detection means detects the coil entry and coil exit by comparing a coil position detection threshold with a measurement value measured by the measurement means.

Inventors:
YAMAUCHI YUYA
KLEISON TRONNAMCHAI
HANAMURA AKIHIRO
NARUSE YUJI
KAI TOSHIHIRO
Application Number:
JP2013208084A
Publication Date:
April 16, 2015
Filing Date:
October 03, 2013
Export Citation:
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Assignee:
NISSAN MOTOR
International Classes:
B60L11/18; B60M7/00; H01F38/14; H02J7/00
Domestic Patent References:
JP2009284696A2009-12-03
JPS56141131A1981-11-04
JP2013188002A2013-09-19
Attorney, Agent or Firm:
Eternal patent business corporation