| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a noncontact power supply which can supply power with high efficiency without spoiling power supply efficiency even if the stop position of an electric vehicle is shifted. <P>SOLUTION: The noncontact power supply 1 comprises a primary coil 11 coupling electromagnetically with a secondary coil 21 of an autonomous mobile unit 2 (electric vehicle), a communication means 12 for acquiring a power receiving state on the secondary coil 21 side, a means 13 for acquiring a power supply state on the primary coil 11 side, a means 14 for acquiring power supply efficiency from the power supply state on the primary coil 11 side acquired by the power supply state acquiring means 13 and the power receiving state on the secondary coil 21 side acquired by the communication means 12, a positioning means 15 for shifting the position of the primary coil 11 to maximize the power supply efficiency acquired by the power supply efficiency acquiring means 14, a retry designation means 16 for transmitting a retry signal to the secondary coil 21 side through the communication means 12 when the power supply efficiency is below a predetermined value, and a means 10 for controlling each means of the noncontact power supply 1. <P>COPYRIGHT: (C)2007,JPO&INPIT |
