Electrically powered vehicle

• US 8,418,823 B2
• Filed: 03/12/2009
• Issued: 04/16/2013
• Est. Priority Date: 03/12/2009
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Matsumura, Naohide
• Primary Examiner(s): Morano, S. Joseph
• Assistant Examiner(s): KUHFUSS, ZACHARY L
• Application Number:
  US13/060,232
• Publication Number:
  US 20110259694A1
• Time in Patent Office: 1,496 Days
• Field of Search: 191/10, 191/18, 191/22.R, 191/45.R, 307/104, 180/68.5
• US Class Current: 191/10
• 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: B60K 2001/0422 Arrangement under the front seats
• CPC Class Codes: B60K 2001/0433 Arrangement under the rear seats
• CPC Class Codes: B60K 2001/0438 Arrangement under the floor
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 50/40 using propulsion power supplied by capacitors
• CPC Class Codes: B60L 53/12 Inductive energy transfer
• CPC Class Codes: H02J 2207/50 Charging of capacitors, supercapacitors, ultra-capacitors or double layer capacitors using capacitors as storage or buffering device in cooperation with batteries H02J7/345
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 7/00712 the cycle being controlled or terminated in response to electric parameters
• 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 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

An electric vehicle can run with power supplied from a power supply facility on the outside of the vehicle. A resonator for power reception is disposed under a metallic under body and configured to receive power from a resonator for power transmission in the power supply facility by resonating with the resonator through an electromagnetic field. A power storage device stores power received by the resonator for power reception. A power cable is laid under the under body along with the resonator for power reception, and configured to transmit power received by the resonator for power reception.

Claims

1. An electrically powered vehicle capable of traveling with power supplied from a power supply outside of the vehicle, the electrically powered vehicle comprising:

a power receiving resonator provided on an outside of the vehicle, the power receiving resonator being configured to receive power from a power transferring resonator of said power supply by resonating with said power transferring resonator through an electromagnetic field;

a power storage device provided inside of the vehicle for storing the power received by said power receiving resonator;

a power cable disposed on the outside of the vehicle, the power cable being configured to transfer the power received by said power receiving resonator to said power storage device; and

a shield member covering said power storage device, the shield member being capable of shielding an area inside of the vehicle that excludes an area covered by the shield member from an electromagnetic wave that propagates through the power cable, wherein

when viewed from a side of the vehicle, said power cable comes into the vehicle at a position directly underneath said power storage device to be connected to said power storage device.

2. The electrically powered vehicle according to claim 1, further comprising:

a rectifier provided outside of the vehicle, the rectifier being;

i) connected to the power receiving resonator, ii) connected to the power storage device, and iii) configured to rectify AC power received by said power receiving resonator.

3. The electrically powered vehicle according to claim 1, wherein when viewed from the side of the vehicle, said power cable comes into the vehicle directly underneath said shield member.

4. The electrically powered vehicle according to claim 1, wherein said power storage device is provided below a seat or a center console.

5. The electrically powered vehicle according to claim 3, wherein said power storage device is provided below a seat or a center console.

6. An electrically powered vehicle capable of traveling with power supplied from a power supply outside of the vehicle, the electrically powered vehicle comprising:

a power receiving resonator provided on an outside of the vehicle, the power receiving resonator being configured to receive power from a power transferring resonator of said power supply by resonating with said power transferring resonator through an electromagnetic field;

a power storage device provided inside of the vehicle for storing the power received by said power receiving resonator;

a power cable disposed on the outside of the vehicle, the power cable being configured to transfer the power received by said power receiving resonator to said power storage device; and

a shield member covering said power storage device, the shield member being capable of shielding an area inside of the vehicle that excludes an area covered by the shield member from an electromagnetic wave that propagates through the power cable, wherein

when viewed from a side of the vehicle, said power cable is directed to a position underneath said power storage device and comes into the vehicle to be connected to said power storage device.

7. The electrically powered vehicle according to claim 6, further comprising:

a rectifier provided outside of the vehicle, the rectifier being;

i) connected to the power receiving resonator, ii) connected to the power storage device, and iii) configured to rectify AC power received by said power receiving resonator.

8. The electrically powered vehicle according to claim 6, wherein when viewed from a side of the vehicle, said power cable comes into the vehicle directly underneath said shield member.

9. The electrically powered vehicle according to claim 6, wherein said power storage device is provided below a seat or a center console.

10. The electrically powered vehicle according to claim 8, wherein said power storage device is provided below a seat or a center console.