| 摘要 |
PROBLEM TO BE SOLVED: To secure charge time in a non-contact charger, while suppressing influence on communication in an electronic key system.SOLUTION: When a start of succession of communication (wake signal) is detected, supply of AC current to a primary coil is stopped throughout first power supply stop time Ts1 which is set to be longer than communication time required for the succession of communication. The supply of AC current to the primary coil is also stopped throughout second power supply stop time Ts2 which starts when the first power supply stop time Ts1 has elapsed. When new succession of communication between an electronic key and an on-vehicle device is detected in the process of the second power supply stop time Ts2, the supply of AC current to the primary coil is stopped again throughout the first power supply stop time Ts1. When duration of the charge stop time has been equal to or more than maximum stop time Tr, a state of supplying AC current to the primary coil is restored (charge resumption mode). |
