VEHICLE AND POWER TRANSFER SYSTEM

• US 20140320078A1
• Filed: 11/22/2011
• Published: 10/30/2014
• Est. Priority Date: 11/22/2011
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Nakamura, Toru, Ichikawa, Shinji
• Granted Patent: US 9,969,281 B2
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: B60K 1/00 Arrangement or mounting of electrical propulsion units B60K7/00 takes precedence; arrangement or mounting of plural diverse prime-movers for mutual or common propulsion B60K6/00; electric transmission arrangements B60K17/12; electric equipment or propulsion of electrically-propelled vehicles per se B60L; current-collectors for power supply lines of electrically-propelled vehicles B60L5/00
• CPC Class Codes: B60K 1/04 of the electric storage means for propulsion exchanging batteries for electric propulsion of vehicles B60L53/80; for auxiliary purposes only B60R16/04; supplying batteries to, or removing batteries from, vehicles B60S5/06
• CPC Class Codes: B60K 2001/0416 Arrangement in the rear part of the vehicle
• CPC Class Codes: B60L 2210/10 DC to DC converters
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60L 50/61 by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
• CPC Class Codes: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60L 50/66 Arrangements of batteries
• CPC Class Codes: B60L 53/12 Inductive energy transfer
• CPC Class Codes: B60L 53/122 Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
• CPC Class Codes: B60L 53/16 Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/36 by positioning the vehicle
• CPC Class Codes: B60Y 2200/92 Hybrid vehicles
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

The vehicle includes a floor panel, a power reception device configured to receive power in a non-contact manner from a power transmission device disposed in the external, and a battery connected to the power reception device. The battery is disposed above the floor panel. The power reception device is disposed below the floor panel. The power reception device and the battery are disposed to overlap each other at least partially in planar view.

Claims

1. A vehicle comprising:

a floor panel;

a power reception device configured to receive power in a non-contact manner from a power transmission device disposed in the external; and

a battery connected to said power reception device,

said battery being disposed above said floor panel,

said power reception device being disposed below said floor panel, and

said power reception device and said battery being disposed to overlap each other at least partially in planar view.

2. The vehicle according to claim 1, further comprising a charger, wherein

said charger is disposed between said power reception device and said battery.

3. The vehicle according to claim 2, further comprising a charge unit connected to a power supplying connector disposed in the external, wherein

said charger converts power supplied from said charge unit to charging power for said battery, and converts power received from said power reception device to the charging power for said battery.

4. The vehicle according to claim 2, further comprising a charge control unit, wherein

said charge control unit is disposed between said power reception device and said battery.

5. The vehicle according to claim 1, wherein a rear end of said power reception device is disposed to protrude to a rear side of the vehicle further than a rear end of said battery.

6. The vehicle according to claim 1, wherein

said power transmission device includes a power transmission unit configured to transmit power in a non-contact manner to said power reception device,

said power reception device includes a power reception unit configured to receive power in a non-contact manner from said power transmission unit, and

a difference between the natural frequency of said power transmission unit and the natural frequency of said power reception unit is 10% of the natural frequency of said power reception unit or less.

7. The vehicle according to claim 1, wherein

said power transmission device includes a power transmission unit configured to transmit power in a non-contact manner to said power reception device,

said power reception device includes a power reception unit configured to receive power in a non-contact manner from said power transmission unit, and

a coupling coefficient between said power reception unit and said power transmission unit is 0.1 or less.

8. The vehicle according to claim 1, wherein

said power transmission device includes a power transmission unit configured to transmit power in a non-contact manner to said power reception device,

said power reception device includes a power reception unit configured to receive power in a non-contact manner from said power transmission unit, and

said power reception unit receives power from said power transmission unit through at least one of a magnetic field which is formed between said power reception unit and said power transmission unit and oscillates at a specific frequency, and an electric field which is formed between said power reception unit and said power transmission unit and oscillates at a specific frequency.

9. A power transfer system comprising:

a power transmission device configured to transmit power in a non-contact manner; and

a vehicle including a floor panel, a power reception device configured to receive power from said power transmission device, and a battery connected to said power reception device,

said battery being disposed above said floor panel,

said power reception device being disposed below said floor panel, and

said power reception device and said battery being disposed to overlap each other at least partially in planar view.

10. The power transfer system according to claim 9, wherein

said vehicle further includes a charger, and

said charger is disposed between said power reception device and said battery.

11. The power transfer system according to claim 10, wherein

said vehicle further includes a charge unit connected to a power supplying connector disposed in the external, and

said charger converts power supplied from said charge unit to charging power for said battery, and converts power received from said power reception device to the charging power for said battery.

12. The power transfer system according to claim 10, wherein

said vehicle further includes a charge control unit, and

said charge control unit is disposed between said power reception device and said battery.

13. The power transfer system according to claim 9, wherein a rear end of said power reception device is disposed to protrude to a rear side of the vehicle further than a rear end of said battery.