VEHICLE AND CONTACTLESS POWER SUPPLY SYSTEM
First Claim
1. A vehicle that contactlessly receives electric power from a power transmitting device of which an impedance is adjustable by a first impedance adjustment unit, comprising:
- a power receiving unit configured to contactlessly receive electric power from the power transmitting device;
an electrical storage device configured to store electric power received by the power receiving unit; and
an electronic control unit configured to control charging operation of the electrical storage device, the electronic control unit being configured to output a command to adjust the first impedance adjustment unit to the power transmitting device, and the electronic control unit being configured to set an impedance of the first impedance adjustment unit based on a power transfer efficiency between the power transmitting device and the power receiving unit while the electrical storage device is being charged.
1 Assignment
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Accused Products
Abstract
A contactless power supply system contactlessly supplies electric power from a power transmitting device to a vehicle. The vehicle includes a power receiving unit contactlessly receiving electric power from the power transmitting device, an electrical storage device storing electric power received by the power receiving unit, and a vehicle ECU. The power transmitting device includes a power supply unit, a power transmitting unit contactlessly supplying electric power, supplied from the power supply unit, to the power receiving unit and a matching transformer used to adjust an impedance between the power supply unit and the power transmitting unit. The vehicle ECU is able to output, to the power transmitting device, a command to adjust the matching transformer, and sets an impedance of the matching transformer on the basis of a power transfer efficiency between the power transmitting unit and the power receiving unit while the electrical storage device is being charged.
39 Citations
10 Claims
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1. A vehicle that contactlessly receives electric power from a power transmitting device of which an impedance is adjustable by a first impedance adjustment unit, comprising:
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a power receiving unit configured to contactlessly receive electric power from the power transmitting device; an electrical storage device configured to store electric power received by the power receiving unit; and an electronic control unit configured to control charging operation of the electrical storage device, the electronic control unit being configured to output a command to adjust the first impedance adjustment unit to the power transmitting device, and the electronic control unit being configured to set an impedance of the first impedance adjustment unit based on a power transfer efficiency between the power transmitting device and the power receiving unit while the electrical storage device is being charged. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A contactless power supply system that contactlessly supplies electric power, comprising:
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a power transmitting device including a power supply unit, a power transmitting unit and an impedance adjustment unit, the power transmitting unit being configured to contactlessly supply electric power, the electric power being supplied from the power supply unit to a power receiving unit, the impedance adjustment unit being electrically connected between the power supply unit and the power transmitting unit, the impedance adjustment unit being configured to adjust an impedance between the power supply unit and the power transmitting unit; and a vehicle including the power receiving unit, an electrical storage device and an electronic control unit, the power receiving unit being configured to contactlessly receive electric power from the power transmitting device, the electrical storage device being configured to store electric power received by the power receiving unit, the electronic control unit being configured to control charging operation of the electrical storage device, the electronic control unit being configured to output a command to adjust the impedance adjustment unit to the power transmitting device, and the electronic control unit being configured to set an impedance of the impedance adjustment unit based on a power transfer efficiency between the power transmitting unit and the power receiving unit while the electrical storage device is being charged.
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Specification