Electrical powered vehicle

• US 8,294,419 B2
• Filed: 11/21/2008
• Issued: 10/23/2012
• Est. Priority Date: 11/21/2008
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Sasaki, Masaru
• Primary Examiner(s): Fantu, Yalkew
• Application Number:
  US13/129,742
• Publication Number:
  US 20110309790A1
• Time in Patent Office: 1,432 Days
• Field of Search: None
• US Class Current: 320/108
• CPC Class Codes: B60K 1/02 comprising more than one electric motor
• CPC Class Codes: B60K 6/365 with the gears having orbital motion
• CPC Class Codes: B60K 6/445 Differential gearing distribution type
• 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: B60W 10/08 including control of electric propulsion units, e.g. motors or generators
• CPC Class Codes: B60W 10/24 including control of energy storage means
• CPC Class Codes: B60W 10/26 for electrical energy, e.g. batteries or capacitors
• CPC Class Codes: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: B60W 20/13 in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
• CPC Class Codes: B60W 2510/244 Charge state
• 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 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

A secondary self-resonant coil is installed at substantially the central region of the bottom face of the vehicle body, receiving electric power from a power feeding apparatus in a non-contact manner by resonating with a primary self-resonant coil of a power feeding apparatus provided external to the vehicle, via an electromagnetic field. In a power reception mode from the power feeding apparatus, high voltage is generated at the wire end of the secondary self-resonant coil, causing generation of a high electric field around the wire end. In order to keep the wire end distant from an ECU that is an electric apparatus located closest to the secondary self-resonant coil, the secondary self-resonant coil is arranged such that the wire end is located at a side (−Y direction) opposite to the side (+Y direction) where the ECU is deviated relative to the bilateral symmetric axis of the vehicle body.

Claims

1. An electrical powered vehicle capable of generating a vehicle driving force by an electric power, said electrical powered vehicle comprising:

a secondary self-resonant coil installed at a predetermined position, and receiving electric power from a primary self-resonant coil provided at a power feeding apparatus external to the vehicle in a non-contact manner by resonating, via an electromagnetic field, with said primary self-resonant coil, and

an electric apparatus including at least one of a power storage device capable of storing electric power received by said secondary self-resonant coil, an electric motor generating a vehicle driving force, a driving device driving said electric motor using the electric power received by said secondary self-resonant coil, and an electronic control unit controlling said driving device,

said secondary self-resonant coil being an LC resonant coil having wire ends open,

said secondary self-resonant coil being arranged such that both said wire ends are kept distant from said electric apparatus located closest to said secondary self-resonant coil.

2. The electrical powered vehicle according to claim 1, wherein

said electric motor and said driving device are arranged at a front region of a vehicle body,

said power storage device is arranged at a rear region of the vehicle body,

said electronic control apparatus is arranged between said electric motor as well as said driving device and said power storage device in a longitudinal direction of the vehicle body, and located deviated to a left side or right side from a bilateral symmetric axis of the vehicle body,

said secondary self-resonant coil is installed at substantially a central region at a bottom face of the vehicle body, and arranged such that both of said wire ends are located at a side opposite to the side where said electronic control unit is deviated relative to said bilateral symmetric axis.

3. The electrical powered vehicle according to claim 1, wherein

said electric motor and said driving device are arranged at a front region of the vehicle body,

said power storage device is arranged at a rear region of the vehicle body,

said electronic control unit is arranged between said electric motor as well as said driving device and said power storage device in a longitudinal direction of the vehicle body, and located deviated to a left side or right side from a bilateral symmetric axis of the vehicle body, and

said secondary self-resonant coil is installed at substantially a central region at an upper portion of the vehicle body, and arranged such that both of said wire ends are located at a side opposite to the side where said electronic control unit is deviated relative to said bilateral symmetric axis.

4. The electrical powered vehicle according to claim 1, wherein said electric motor and said driving device are arranged at a front region of the vehicle body,

said power storage device is arranged in proximity to a bottom face of the vehicle body at a rear region of the vehicle body,

said electronic control unit is arranged between said electric motor as well as said driving device and said power storage device in a longitudinal direction of the vehicle body, and

said secondary self-resonant coil is installed at a rearmost region of the vehicle body, and arranged such that both of said wire ends are located at an upper portion side of the vehicle body.