Vehicle, power receiving device, power transmitting device, and contactless power supply system
First Claim
Patent Images
1. A vehicle that contactlessly receives electric power from a power transmitting device, comprising:
- a power receiving unit configured to contactlessly receive electric power from the power transmitting device;
an electric load configured to operate by utilizing electric power received by the power receiving unit;
a communication unit configured to carry out wireless communication with the power transmitting device, the communication unit being configured to switch a spatially communicable communication range between a first range and a second range narrower than the first range; and
a control unit configured to, at the time of identifying the power transmitting device from which electric power should be received, control the communication unit such that the communication unit communicates with the power transmitting device using the second range, whereinthe control unit is configured to switch the communication range from the first range to the second range on the basis of information indicating that a distance to the power transmitting device has become a predetermined distance, andthe control unit is configured to, after identifying the power transmitting device, switch the communication range from the second range to the first range.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle is able to contactlessly receive electric power from a power transmitting device and to charge a mounted electrical storage device (electric load). The vehicle includes a communication unit that carries out wireless communication with the power transmitting device and a vehicle ECU (control unit) that controls the communication unit. The communication unit is able to switch a communication range between a wide communication range (wire-area communication) and a narrow communication range (narrow-area communication). The vehicle ECU, at the time of identifying a power transmitting device from which electric power should be received, controls the communication unit such that the communication unit communicates with the power transmitting device using the narrow-area communication.
10 Citations
25 Claims
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1. A vehicle that contactlessly receives electric power from a power transmitting device, comprising:
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a power receiving unit configured to contactlessly receive electric power from the power transmitting device; an electric load configured to operate by utilizing electric power received by the power receiving unit; a communication unit configured to carry out wireless communication with the power transmitting device, the communication unit being configured to switch a spatially communicable communication range between a first range and a second range narrower than the first range; and a control unit configured to, at the time of identifying the power transmitting device from which electric power should be received, control the communication unit such that the communication unit communicates with the power transmitting device using the second range, wherein the control unit is configured to switch the communication range from the first range to the second range on the basis of information indicating that a distance to the power transmitting device has become a predetermined distance, and the control unit is configured to, after identifying the power transmitting device, switch the communication range from the second range to the first range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 25)
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10. A power receiving device that contactlessly receives electric power from a power transmitting device, comprising:
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a power receiving unit configured to contactlessly receive electric power from the power transmitting device; a communication unit configured to carry out wireless communication with the power transmitting device, the communication unit being configured to switch a spatially communicable communication range between a first range and a second range narrower than the first range; and a control unit configured to, at the time of identifying the power transmitting device from which electric power should be received, control the communication unit such that the communication unit communicates with the power transmitting device using the second range, wherein the control unit is configured to switch the communication range from the first range to the second range on the basis of information indicating that a distance to the power transmitting device has become a predetermined distance, and the control unit is configured to, after identifying the power transmitting device, switch the communication range from the second range to the first range.
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11. A power transmitting device that contactlessly supplies electric power to a power receiving device, comprising:
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a power transmitting unit configured to contactlessly transmit electric power to the power receiving device; a communication unit configured to carry out wireless communication with the power receiving device, the communication unit being configured to switch a spatially communicable communication range between a first range and a second range narrower than the first range; and a control unit configured to, at the time of identifying the power receiving device to which electric power should be transmitted, control the communication unit such that the communication unit communicates with the power receiving device using the second range, wherein electric power received by the power receiving device using the second range is charged to an electrical storage device, and the control unit is configured to, after charging of the electrical storage device has been completed, switch the communication range from the second range to the first range for non-charging communication, the control unit is configured to switch the communication range from the first range to the second range on the basis of information indicating that a distance to the power receiving device has become a predetermined distance, and the control unit is configured to, after identifying the power receiving device, switch the communication range from the second range to the first range. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A contactless power supply system, comprising:
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a power transmitting device including a power transmitting unit; a vehicle including a power receiving unit; a communication unit configured to carry out wireless communication between the power transmitting device and the vehicle, the communication unit switching a spatially communicable communication range between a first range and a second range narrower than the first range; and a control unit configured to, at the time of identifying a combination of the power transmitting device and the vehicle, control the communication unit such that the communication unit carries out communication using the second range, wherein electric power is contactlessly transferred from the power transmitting device to the vehicle, wherein the control unit is configured to switch the communication range from the first range to the second range on the basis of information indicating that a distance to the power transmitting device has become a predetermined distance, and the control unit is configured to, after identifying the power transmitting device, switch the communication range from the second range to the first range.
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21. A vehicle that contactlessly receives electric power from a first power transmitting device, comprising:
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a power receiving unit configured to contactlessly receive electric power from the first power transmitting device; an electric load configured to operate by utilizing electric power received by the power receiving unit; a communication unit configured to carry out wireless communication with the first power transmitting device, the communication unit being configured to switch a spatially communicable communication range between a first range and a second range narrower than the first range; and a control unit configured to, at the time of identifying the first power transmitting device from which electric power should be received, control the communication unit such that the communication unit communicates with the first power transmitting device using the second range, wherein the control unit is configured to, when a second power transmitting device is recognized while communication is being carried out with the first power transmitting device using the second range, stop transmission of electric power from the first power transmitting device and from the second power transmitting device.
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22. A power receiving device that contactlessly receives electric power from a first power transmitting device, comprising:
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a power receiving unit configured to contactlessly receive electric power from the first power transmitting device; a communication unit configured to carry out wireless communication with the first power transmitting device, the communication unit being configured to switch a spatially communicable communication range between a first range and a second range narrower than the first range; and a control unit configured to, at the time of identifying the first power transmitting device from which electric power should be received, control the communication unit such that the communication unit communicates with the first power transmitting device using the second range, wherein the control unit is configured to, when a second power transmitting device is recognized while communication is being carried out with the first power transmitting device using the second range, stop transmission of electric power from the first power transmitting device and from the second power transmitting device.
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23. A first power transmitting device that contactlessly supplies electric power to a power receiving device, comprising:
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a power transmitting unit configured to contactlessly transmit electric power to the power receiving device; a communication unit configured to carry out wireless communication with the power receiving device, the communication unit being configured to switch a spatially communicable communication range between a first range and a second range narrower than the first range; and a control unit configured to, at the time of identifying the power receiving device to which electric power should be transmitted, control the communication unit such that the communication unit communicates with the first power receiving device using the second range, wherein the control unit is configured to, when a second power receiving device is recognized while communication is being carried out with the first power transmitting device using the second range, stop transmission of electric power to the first power receiving device and to the second power receiving device.
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24. A contactless power supply system, comprising:
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a first power transmitting device including a power transmitting unit; a vehicle including a power receiving unit; a communication unit configured to carry out wireless communication between the first power transmitting device and the vehicle, the communication unit switching a spatially communicable communication range between a first range and a second range narrower than the first range; and a control unit configured to, at the time of identifying a combination of the first power transmitting device and the vehicle, control the communication unit such that the communication unit carries out communication using the second range, wherein electric power is contactlessly transferred from the first power transmitting device to the vehicle, wherein the control unit is configured to, when a second power transmitting device is recognized while communication is being carried out with the first power transmitting device using the second range, stop transmission of electric power from the first power transmitting device and from the second power transmitting device.
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Specification
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Current AssigneeToyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
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Original AssigneeToyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
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InventorsIchikawa, Shinji, Inoue, Keisuke, Gorai, Naoki
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Primary Examiner(s)Berhanu, Samuel
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Assistant Examiner(s)Kebede, Tessema
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Application NumberUS13/860,167Publication NumberTime in Patent Office1,511 DaysField of Search320108US Class CurrentCPC Class CodesB60L 50/60 using power supplied by bat...H01F 38/14 Inductive couplings for wir...H02J 50/12 of the resonant typeH02J 50/80 involving the exchange of d...H02J 50/90 involving detection or opti...H04L 67/12 specially adapted for propr...H04W 4/023 using mutual or relative lo...Y02T 10/70 Energy storage systems for ...Y02T 90/16 Information or communicatio...Y04S 40/18 Network protocols supportin...
