Non-contact power supply method and non-contact power supply system
First Claim
1. A non-contact power supply method that enables charging electricity to a vehicle by electromagnetically coupling a power receiving coil mounted in the vehicle to a power supply coil of a power supply device which is disposed outside of the vehicle, the non-contact power supply method comprising:
- determining that an electronic appliance is inside the vehicle, based on wireless communication information emitted by the electronic appliance inside the vehicle; and
upon detecting that the electronic appliance is inside the vehicle, comparing respective maximum allowable current values of the detected electronic appliance and the vehicle to determine a smaller maximum allowable current value; and
controlling a maximum current value for driving the power supply coil of the power supply device based on the smaller maximum allowable current value.
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Accused Products
Abstract
It is intended to provide a safe non-contact charging environment that enables finding an electronic appliance that remains left in a vehicle before start of charging and preventing trouble that an electronic appliance breaks down by electromagnetic waves generated during charging by means of electromagnetic coupling. A process of checking to see that an electronic appliance remains left inside a vehicle, based on wireless communication information emitted by the electronic appliance left inside the vehicle is performed in advance. When it has been detected that an electronic appliance remains left, a charging current value is controlled according to an allowable current of the detected electronic appliance or an alert is generated to notify that the electronic appliance remains left.
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Citations
14 Claims
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1. A non-contact power supply method that enables charging electricity to a vehicle by electromagnetically coupling a power receiving coil mounted in the vehicle to a power supply coil of a power supply device which is disposed outside of the vehicle, the non-contact power supply method comprising:
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determining that an electronic appliance is inside the vehicle, based on wireless communication information emitted by the electronic appliance inside the vehicle; and upon detecting that the electronic appliance is inside the vehicle, comparing respective maximum allowable current values of the detected electronic appliance and the vehicle to determine a smaller maximum allowable current value; and controlling a maximum current value for driving the power supply coil of the power supply device based on the smaller maximum allowable current value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A non-contact power supply system, comprising:
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a vehicle including a power receiving coil disposed in the vehicle; a power supply device including a power supply coil, which is disposed outside of the vehicle, wherein the power receiving coil is electromagnetically coupled to the power supply coil, wherein said power supply device comprises a power supply unit that supplies electric power to the power supply coil and a power supply control unit that controls operation of the power supply unit, wherein said power supply control unit comprises a control function of detecting that an electronic appliance remains left inside the vehicle, based on wireless communication information emitted by the electronic appliance left inside the vehicle, wherein said power supply control unit, upon detecting that the electronic appliance is inside the vehicle, compares respective maximum allowable current values of the detected electronic appliance and the vehicle to determine a smaller maximum allowable current value; and controls a maximum current value for driving the power supply coil of the power supply device based on the smaller maximum allowable current value. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification