Wireless power supply system and wireless power reception device
First Claim
1. A wireless power supply system comprising:
- a power transmission device provided on the ground and configured to transmit power; and
a power reception device provided to a vehicle and configured to receive power transmitted from the power transmission device and supply the power to an electric load, whereinthe power transmission device includesa power transmission coil provided at a parking space and configured to transmit power,a ground controller configured to control power to be supplied to the power transmission coil, anda power-transmission-side wireless device configured to communicate with the power reception device,the power reception device includesa power reception coil configured to receive power transmitted from the power transmission coil and supply the received power to the vehicle as drive force,at least one subcoil provided on each of a front side and a rear side of the vehicle relative to the power reception coil and configured to receive, as an excitation pattern signal, power transmitted from the power transmission coil,a vehicle controller configured to control power reception of the power reception coil and the subcoils, anda power-reception-side wireless device configured to communicate with the power transmission device,when the vehicle approaches the parking space, the ground controller performs excitation using an excitation pattern signal containing identification data,the vehicle controller acquires the identification data from the excitation pattern signal received by at least one of the subcoils, and the power-reception-side wireless device transmits the acquired identification data to the power transmission device,the ground controller pairs the power transmission coil and the power reception coil with each other when the identification data contained in the excitation pattern signal and the identification data transmitted from the vehicle controller match each other, andthe pairing is canceled if the identification data received by the subcoil provided on the front side and the identification data received by the subcoil provided on the rear side are different from each other.
1 Assignment
0 Petitions
Accused Products
Abstract
When a vehicle approaches a parking space, a ground controller excites a power transmission coil using an excitation pattern signal containing identification data, and a vehicle controller acquires the identification data from the excitation pattern signal received by at least one of subcoils. Then, a communication unit transmits the acquired identification data to the ground unit. The ground controller pairs the power transmission coil and the power reception coil with each other when the identification data contained in the excitation pattern signal and the identification data transmitted from the vehicle controller match each other. Also, the pairing is canceled if the identification data received by the subcoil provided on the front side and the identification data received by the subcoil provided on the rear side are different from each other.
6 Citations
5 Claims
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1. A wireless power supply system comprising:
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a power transmission device provided on the ground and configured to transmit power; and a power reception device provided to a vehicle and configured to receive power transmitted from the power transmission device and supply the power to an electric load, wherein the power transmission device includes a power transmission coil provided at a parking space and configured to transmit power, a ground controller configured to control power to be supplied to the power transmission coil, and a power-transmission-side wireless device configured to communicate with the power reception device, the power reception device includes a power reception coil configured to receive power transmitted from the power transmission coil and supply the received power to the vehicle as drive force, at least one subcoil provided on each of a front side and a rear side of the vehicle relative to the power reception coil and configured to receive, as an excitation pattern signal, power transmitted from the power transmission coil, a vehicle controller configured to control power reception of the power reception coil and the subcoils, and a power-reception-side wireless device configured to communicate with the power transmission device, when the vehicle approaches the parking space, the ground controller performs excitation using an excitation pattern signal containing identification data, the vehicle controller acquires the identification data from the excitation pattern signal received by at least one of the subcoils, and the power-reception-side wireless device transmits the acquired identification data to the power transmission device, the ground controller pairs the power transmission coil and the power reception coil with each other when the identification data contained in the excitation pattern signal and the identification data transmitted from the vehicle controller match each other, and the pairing is canceled if the identification data received by the subcoil provided on the front side and the identification data received by the subcoil provided on the rear side are different from each other. - View Dependent Claims (2, 3, 4, 5)
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Specification