Vehicle

Patent metadata

Field	Value
Publication number	US-9545850-B2
Application number	US-201114357848-A
Country	US
Kind code	B2
Filing date	Nov 25, 2011
Priority date	Nov 25, 2011
Publication date	Jan 17, 2017
Grant date	Jan 17, 2017

Abstract

This vehicle includes a vehicle-mounted component mounted below a rear floor panel and an electric power reception device mounted below the rear floor panel and including an electric power reception portion receiving electric power in a non-contact manner from an electric power transmission device including an externally provided electric power transmission portion, and the vehicle-mounted component is arranged flush with and around the electric power reception device.

First claim

The invention claimed is:

1. A vehicle, comprising:
a vehicle-mounted component mounted below a floor panel of the vehicle, the vehicle-mounted component is a member selected from the group consisting of a side member, a rear suspension, a front suspension, a fuel tank, a fuel hose, a muffler, an exhaust pipe, a vehicle height sensor, a brake, a brake hose, a battery, and a radiator; and
an electric power reception coil disposed below said floor panel, the electric power reception coil being configured to receive electric power in a non-contact manner from an electric power transmission device including an externally provided electric power transmission portion, wherein
said vehicle-mounted component is arranged flush with and around said electric power reception coil,
said vehicle-mounted component has a surface region facing a region of said electric power reception coil,
at least the surface region of said vehicle-mounted component is a material lower in impedance than another region of said vehicle-mounted component, and
the surface region of said vehicle-mounted component has a shape in conformity with the region of the electric power reception coil so that said surface region of the vehicle-mounted component is arranged at a constant distance from the region of the electric power reception coil.

2. The vehicle according to claim 1 , wherein
said floor panel has a surface region facing said electric power reception coil, said surface region of the floor panel being a material lower in impedance than another region of said floor panel.

3. The vehicle according to claim 1 , wherein
said reception coil is a resonant coil, and the resonant coil has a regular polygonal shape having as one side, said region arranged at the constant distance.

4. The vehicle according to claim 1 , wherein
said vehicle-mounted component is a muffler or an exhaust pipe, and
at least a part of said electric power reception coil is located between a capacitor for the electric power reception coil and said muffler or said exhaust pipe.

5. The vehicle according to claim 1 , wherein
a difference in natural frequency between said electric power transmission portion and said electric power reception coil is not higher than 10% of the natural frequency of said electric power reception coil.

6. The vehicle according to claim 1 , wherein
a coefficient of coupling between said electric power reception coil and said electric power transmission portion is not greater than 0.1.

7. The vehicle according to claim 1 , wherein
said electric power reception coil receives electric power from said electric power transmission portion through at least one of magnetic field formed between said electric power reception coil and said electric power transmission portion and oscillating at a specific frequency and electric field formed between said electric power reception coil and said electric power transmission portion and oscillating at a specific frequency.

8. The vehicle according to claim 1 , further comprising a shielding member arranged around said electric power reception coil between said vehicle-mounted component and said electric power reception coil,
wherein the shielding member has a geometry in conformity with a shape of said electric power reception coil.

9. A vehicle, comprising:
a vehicle-mounted component mounted below a floor panel of the vehicle, the vehicle-mounted component is a member selected from the group consisting of a side member, a rear suspension, a front suspension, a fuel tank, a fuel hose, a muffler, an exhaust pipe, a vehicle height sensor, a brake, a brake hose, a battery, and a radiator;
an electric power reception coil disposed below said floor panel, the electric power reception coil being configured to receive electric power in a non-contact manner from an electric power transmission device including an externally provided electric power transmission portion; wherein
said vehicle-mounted component is arranged flush with and around said electric power reception coil,
said vehicle-mounted component has a surface region facing a region of said electric power reception coil,
a shielding member is attached to at least the surface region of said vehicle-mounted component, the shielding member being a material lower in impedance than said vehicle-mounted component, and
the surface region has a shape in conformity with the region of the electric power reception coil so that said surface region of the vehicle-mounted component is arranged at a constant distance from the region of the electric power reception coil.

10. The vehicle according to claim 9 , wherein
said floor panel has a surface region facing said electric power reception coil, said surface region of the floor panel being a material lower in impedance than another region of said floor panel.

11. The vehicle according to claim 9 , wherein
said reception coil is a resonant coil, and the resonant coil has a regular polygonal shape having as one side, said region arranged at the constant distance.

12. The vehicle according to claim 9 , wherein
said vehicle-mounted component is a muffler or an exhaust pipe, and
at least a part of said electric power reception coil is located between a capacitor for the electric power reception coil and said muffler or said exhaust pipe.

13. The vehicle according to claim 9 , wherein
a difference in natural frequency between said electric power transmission portion and said electric power reception coil is not higher than 10% of the natural frequency of said electric power reception coil.

14. The vehicle according to claim 9 , wherein
a coefficient of coupling between said electric power reception coil and said electric power transmission portion is not greater than 0.1.

15. The vehicle according to claim 9 , wherein
said electric power reception coil receives electric power from said electric power transmission portion through at least one of magnetic field formed between said electric power reception coil and said electric power transmission portion and oscillating at a specific frequency and electric field formed between said electric power reception coil and said electric power transmission portion and oscillating at a specific frequency.

16. The vehicle according to claim 9 , further comprising a shielding member arranged around said electric power reception coil between said vehicle-mounted component and said electric power reception coil,
wherein the shielding member has a geometry in conformity with a shape of said electric power reception coil.

Assignees

• Ichikawa Shinji
• Horiuchi Satoru
• Toyota Motor Co Ltd

Inventors

• Ichikawa Shinji
• Horiuchi Satoru

Classifications

• B60L53/126

  Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver · CPC title

• Y02T90/14

  Plug-in electric vehicles · CPC title

• B60L50/61

  by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles · CPC title

• B60L53/38

  specially adapted for charging by inductive energy transfer · CPC title

• H02J50/12

  of the resonant type · CPC title