Title:
Non-contact Transmission and reception system
Document Type and Number:
Japanese Patent JP6252433
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To more properly determine a distance between a power transmission coil of a transmission apparatus and a power reception coil of a reception apparatus while suppressing an increase in the number of components.SOLUTION: A non-contact power transmission apparatus estimates a distance Lv in the vehicle height direction between a power transmission coil 134 and a power reception coil 34 according to a vehicle height Hv from a vehicle height sensor as well as a distance Lh in the plane direction between the power transmission coil 134 and the power reception coil 34 using a coupling coefficient k obtained based on an output impedance Zs of a high-frequency power supply circuit 140 and calculates a distance L between the power transmission coil 134 and the power reception coil 34 on the basis of the estimated distance Lv in the vehicle height direction and the distance Lh in the plane direction, and can more exactly obtain a distance L between the power transmission coil 134 and the power reception coil 34 without increasing the number of other components only by mounting the vehicle height sensor.SELECTED DRAWING: Figure 4
Inventors:
Takahiro Misawa
Application Number:
JP2014219062A
Publication Date:
December 27, 2017
Filing Date:
October 28, 2014
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H02J50/10; B60L11/18; B60M7/00; H02J7/00; H02J50/80
Domestic Patent References:
| JP2012070463A | ||||
| JP2014057458A | ||||
| JP2014183695A | ||||
| JP2013192326A | ||||
| JP200892704A | ||||
| JP2014160702A |
Foreign References:
| WO2012090700A1 |
Attorney, Agent or Firm:
Aitec International Patent Office