| 摘要 |
PROBLEM TO BE SOLVED: To more properly position a power transmitting coil and a power receiving coil.SOLUTION: A solenoid coil 37a for position detection is disposed in such a manner that a winding axis comes in a longitudinal direction of a vehicle and becomes a center location of a power receiving coil 34.When the vehicle moves backwards and the power receiving coil 34 approaches a power transmitting coil 134, an induction voltage Vi of the solenoid coil 37a for position detection induced by weak power that is transmitted by the power transmitting coil 134 is detected. When the induction voltage Vi reaches a maximal value, a distance equal to a radius of the power transmitting coil 134 or a distance a littler shorter than the radius is output as a movement recommendation distance. By moving the vehicle while using such a movement recommendation distance, the power transmitting coil 134 and the power receiving coil 34 can be positioned more properly.SELECTED DRAWING: Figure 3 |
