| 摘要 |
[SUMMARY] A contactless power transfer system for a movable object includes: a power transmission coil 31 installed on a ground side; and a power reception coil 32 positioned opposite the power transmission coil across a gap, and installed on a movable object side. Power is transferred from the power transmission coil to the power reception coil by electromagnetic induction. The contactless power transfer system includes a foreign object detector 50 and a foreign object removing apparatus 70. The foreign object detector 50 detects, based on a difference between a standard value and a measured value obtained by supplying electrical power for foreign object detection purpose to the power transmission coil, presence or absence of a metallic foreign object 100 on the power transmission coil. When the metallic foreign object 100 is detected, the foreign object detector 50 outputs a foreign object detection signal. The foreign object removing apparatus 70 removes, upon detection of the metallic foreign object 100, the metallic foreign object 100 from the power transmission coil 31. Thus, a metallic foreign object present on the transmission coil can be detected with a high degree of accuracy and can be removed. |
