Electrical powered vehicle

• US 8,651,208 B2
• Filed: 10/09/2008
• Issued: 02/18/2014
• Est. Priority Date: 10/09/2008
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Ichikawa, Shinji
• Primary Examiner(s): PHAN, HAU VAN
• Application Number:
  US13/122,841
• Publication Number:
  US 20110214926A1
• Time in Patent Office: 1,958 Days
• Field of Search: 180/2.1, 180/2.2, 180/167, 180/65.1, 180/65.31, 180/65.21, 180/65.27, 307/104, 307/108, 307/9.1, 307/149
• US Class Current: 180/65.27
• CPC Class Codes: B60L 2250/12 by confirmation, e.g. of the input
• CPC Class Codes: B60L 2270/147 electro magnetic [EMI]
• CPC Class Codes: B60L 5/005 without mechanical contact between the collector and the power supply line
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60L 50/62 charged by low-power generators primarily intended to support the batteries, e.g. range extenders
• CPC Class Codes: B60L 53/126 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 Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/502 the energy repeater being integrated together with the emitter or the receiver
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• 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

A power reception unit includes a secondary self-resonant coil receiving electric power from a power transmission unit of a power feeding device by resonating with a primary self-resonant coil included in the power transmission unit through an electromagnetic field. The power reception unit is stored in an engine room where a driving power generation unit including an engine and motor generator are stored. In detail, the power reception unit is arranged at the bottom of the engine room. A shielding member is provided to electromagnetically shield the engine room from inside and outside. For example, the shielding member is formed of a cloth, sponge, or the like having an electromagnetic shielding effect, and is arranged at the inner surface of the engine room.

Claims

1. An electrical powered vehicle capable of generating running driving power by an electric motor using electric power supplied from a power feeding device provided external to the vehicle, the electrical powered vehicle comprising:

a power reception unit including a power reception resonator configured to receive electric power from a power transmission resonator included in said power feeding device by resonating with said power transmission resonator through an electromagnetic field;

a power storage device configured to store electric power received by said power reception unit;

a storage chamber where said power reception unit is stored, the storage chamber having a door configured to open and close said storage chamber;

a shielding member configured to electromagnetically shield said storage chamber from inside and outside; and

an interlock device configured to prohibit said electromagnetic field from being discharged outside of said storage chamber through an opening created when said door is in an open state.

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

an internal combustion engine configured to generate energy for running, wherein

said storage chamber is an engine room where said internal combustion engine is stored.

3. The electrical powered vehicle according to claim 2, wherein said power reception unit is arranged at a bottom of said storage chamber.

4. The electrical powered vehicle according to claim 2, wherein:

said interlock device is configured to interrupt or prohibit power reception from said power feeding device when said door is in said open state.

5. The electrical powered vehicle according to claim 1, wherein said storage chamber is a luggage compartment for storing a luggage of a user.

6. The electrical powered vehicle according to claim 5, wherein said power reception unit is arranged at a bottom of said storage chamber.

7. The electrical powered vehicle according to claim 5, wherein:

said interlock device is configured to interrupt or prohibit power reception from said power feeding device when said door is in said open state.

8. The electrical powered vehicle according to claim 1, wherein said storage chamber is a chamber where said electric motor is stored.

9. The electrical powered vehicle according to claim 8, wherein said power reception unit is arranged at a bottom of said storage chamber.

10. The electrical powered vehicle according to claim 8, wherein:

said interlock device is configured to interrupt or prohibit power reception from said power feeding device when said door is in said open state.

11. The electrical powered vehicle according to claim 1, further comprising:

an electric power conversion device configured to perform power conversion between a power supply line in the vehicle and said electric motor, wherein

said storage chamber is a chamber where said electric power conversion device is stored.

12. The electrical powered vehicle according to claim 11, wherein said power reception unit is arranged at a bottom of said storage chamber.

13. The electrical powered vehicle according to claim 11, wherein:

said interlock device is configured to interrupt or prohibit power reception from said power feeding device when said door is in said open state.

14. The electrical powered vehicle according to claim 1, wherein said power reception unit is arranged at a bottom of said storage chamber.

15. The electrical powered vehicle according to claim 1, wherein:

said interlock device includes a device configured to interrupt or prohibit power reception from said power feeding device when said door is in said open state.

16. The electrical powered vehicle according to claim 15, wherein said interlock device includes:

a detection device configured to detect an open/close state of said door, and

a communication device configured to transmit to said power feeding device a command designating interruption or prohibition of power transmission from said power feeding device when an open state of said door is detected by said detection device.

17. The electrical powered vehicle according to claim 15, wherein said interlock device further includes a shield plate located between said power feeding device and said power reception unit when said open state of said door is detected.