Power transmitting device and power transfer system
First Claim
1. A power transmitting device that contactlessly transmits electric power to a secondary coil provided at a vehicle, the power transmitting device comprising:
- a plurality of primary coils located separate from the vehicle and arranged at an interval in an arrangement direction;
a selecting unit configured to select one of the primary coils, to which electric power is to be supplied from a power supply; and
a control unit configured to control the selecting unit, the control unit being configured to cause the power supply to supply the selected primary coil with a second electric power smaller than a first electric power, the control unit being configured to select a power transmitting coil from among the plurality of primary coils based on at least one of a power transmitting situation of the selected primary coil and a power receiving situation of the secondary coil, the control unit being configured to cause the power supply to supply the power transmitting coil with the first electric power.
1 Assignment
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Accused Products
Abstract
A power transmitting device that contactlessly transmits electric power to a power receiving device having a secondary coil provided at a vehicle, and a power transfer system, are provided. The power transmitting device includes primary coils, a selecting unit and a control unit. The primary coils are arranged at an interval in an arrangement direction. The selecting unit selects one primary coil to which electric power is supplied from a power supply. The control unit controls the selecting unit by supplying the selected primary coil with a second electric power smaller than a first electric power, selecting a power transmitting coil from among the primary coils on the basis of at least one of a power transmitting situation of the selected primary coil and a power receiving situation of the secondary coil, and supplying the power transmitting coil with the first electric power.
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Citations
13 Claims
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1. A power transmitting device that contactlessly transmits electric power to a secondary coil provided at a vehicle, the power transmitting device comprising:
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a plurality of primary coils located separate from the vehicle and arranged at an interval in an arrangement direction; a selecting unit configured to select one of the primary coils, to which electric power is to be supplied from a power supply; and a control unit configured to control the selecting unit, the control unit being configured to cause the power supply to supply the selected primary coil with a second electric power smaller than a first electric power, the control unit being configured to select a power transmitting coil from among the plurality of primary coils based on at least one of a power transmitting situation of the selected primary coil and a power receiving situation of the secondary coil, the control unit being configured to cause the power supply to supply the power transmitting coil with the first electric power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A power transfer system including a power receiving device that has a secondary coil provided at a vehicle and a power transmitting device that contactlessly transmits electric power to the secondary coil, the power transmitting device comprising:
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a plurality of primary coils located separate from the vehicle and arranged at an interval in an arrangement direction; a selecting unit configured to select one of the primary coils, to which electric power is to be supplied from a power supply; and a control unit configured to control the selecting unit, the control unit being configured to cause the power supply to supply the selected primary coil with a second electric power smaller than a first electric power, the control unit being configured to select a power transmitting coil from among the plurality of primary coils based on the basis of at least one of a power transmitting situation of the selected primary coil and a power receiving situation of the secondary coil, the control unit being configured to cause the power supply to supply the power transmitting coil with the first electric power.
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Specification