| 摘要 |
PROBLEM TO BE SOLVED: To properly detect a relative positional relationship between a power-supply coil of a power-supply device installed outside a vehicle and a power-receiving coil of a power-receiving device mounted on the vehicle.SOLUTION: A coil position detection device detects a relative positional relationship between a power-supply coil 235 and a power-receiving coil 115. A sensor 251 is extended along a direction M2 perpendicular to an estimated entry direction M1 of a vehicle 100. A sensor 252 is extended apart by a distance L0 from the sensor 251 in the direction M2. A sensor 253 is extended from a center part P3 of the sensor 252 to the sensor 251 so as to form an angle &thetas; with respect to the direction M2, to detect whether a tire 104a has passed or not. The sensor 254 is extended from the center part P3 of the sensor 252 to the sensor 251 so as to form an angle &thetas; with respect to a direction opposite the direction M2, to detect whether the tire 104b has passed or not. |
