Vehicle electric power supply system
The present invention is vehicle electric power supply system (A) that supplies electric power wirelessly to a vehicle (M) that is positioned within an electric power supply area (X). The vehicle electric power supply system (A) has: a power-receiving device (m 1 ) that is provided in the vehicle; a plurality of power-transmitting devices ( 1 a 1, 1 a 2, 1 a 3, 1 b 1, 1 b 2, 1 b 3, 1 c 1, 1 c 2, 1 c 3 ) that are provided at mutually different positions within the electric power supply area; a position detecting device ( 4 ) that detects the position of the power-receiving device within the electric power supply area; and a control device ( 4 ) that, based on detection results from the position detecting device, selects from among the plurality of power-transmitting devices the power-transmitting device that is located in a position that corresponds to the power-receiving device, and then causes power to be supplied wirelessly from the selected power-transmitting device.
1. A vehicle electric power supply system that supplies electric power wirelessly to a vehicle that is positioned within an electric power supply area, comprising:
a power-receiving device that is provided in the vehicle;
a plurality of power-transmitting devices that are provided at mutually different positions within the electric power supply area;
a position detecting device that detects a position signal of the power-receiving device within the electric power supply area; and
a control device that, based on detection results from the position detecting device, selects from among the plurality of power-transmitting devices the power-transmitting device that is located in a position that corresponds to the power-receiving device, and then causes power to be supplied wirelessly from the selected power-transmitting device.
2. The vehicle electric power supply system according to claim 1 , wherein, based on the detection results from the position detecting device, the control device selects from among the plurality of power-transmitting devices the power-transmitting device that is located in the closest position to the power-receiving device, and then causes power to be supplied wirelessly from the selected power-transmitting device.
3. The vehicle electric power supply system according to claim 2 , wherein, when the position detecting device has detected the positions of a plurality of the power-receiving devices within the electric power supply area,
then based on the detection results from the position detecting device, the control device selects from among the plurality of power-transmitting devices the respective power-transmitting devices that are placed in positions that correspond to each one of the plurality of power-receiving devices, and causes power to be supplied wirelessly from the selected power-transmitting devices.
4. The vehicle electric power supply system according to claim 3 , wherein the power-transmitting devices are provided with power-transmitting coils, and the power-receiving devices are provided with power-receiving coils, and
the power-transmitting devices transmit power wirelessly by causing their power-transmitting coils to be electromagnetically coupled with the power-receiving coils.
5. The vehicle electric power supply system according to claim 4 , wherein the power-transmitting coils and the power-receiving coils are used as the position detecting device.
6. The vehicle electric power supply system according to claim 2 , wherein the power-transmitting devices are provided with power-transmitting coils, and the power-receiving devices are provided with power-receiving coils, and
the power-transmitting devices transmit power wirelessly by causing their power-transmitting coils to be electromagnetically coupled with the power-receiving coils.
7. The vehicle electric power supply system according to claim 6 , wherein the power-transmitting coils and the power-receiving coils are used as the position detecting device.
8. The vehicle electric power supply system according to claim 1 , wherein, when the position detecting device has detected the positions of a plurality of the power-receiving devices within the electric power supply area,
then based on the detection results from the position detecting device, the control device selects from among the plurality of power-transmitting devices the respective power-transmitting devices that are placed in positions that correspond to each one of the plurality of power-receiving devices, and causes power to be supplied wirelessly from the selected power-transmitting devices.
9. The vehicle electric power supply system according to claim 8 , wherein the power-transmitting devices are provided with power-transmitting coils, and the power-receiving devices are provided with power-receiving coils, and
the power-transmitting devices transmit power wirelessly by causing their power-transmitting coils to be electromagnetically coupled with the power-receiving coils.
10. The vehicle electric power supply system according to claim 9 , wherein the power-transmitting coils and the power-receiving coils are used as the position detecting device.
11. The vehicle electric power supply system according to claim 1 , wherein the power-transmitting devices are provided with power-transmitting coils, and the power-receiving devices are provided with power-receiving coils, and
the power-transmitting devices transmit power wirelessly by causing their power-transmitting coils to be electromagnetically coupled with the power-receiving coils.
12. The vehicle electric power supply system according to claim 11 , wherein the power-transmitting coils and the power-receiving coils are used as the position detecting device.
13. The vehicle electrical power supply system according to claim 1 , wherein the position detecting device further detects, in addition to the position signal, an amount of charged power per unit time.