VEHICLE

• US 20150123465A1
• Filed: 05/09/2012
• Published: 05/07/2015
• Est. Priority Date: 05/09/2012
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Ichikawa, Shinji
• Granted Patent: US 10,286,794 B2
• Time in Patent Office: Days
• US Class Current: 307/9.1
• 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 2001/0422 Arrangement under the front seats
• CPC Class Codes: B60L 2210/10 DC to DC converters
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60L 50/66 Arrangements of batteries
• 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 53/126 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: B60L 53/30 Constructional details of charging stations
• CPC Class Codes: B60L 53/36 by positioning the vehicle
• CPC Class Codes: B60L 58/40 for controlling a combination of batteries and fuel cells
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• 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 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H04B 5/24 Inductive coupling
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: H04W 4/40 : for vehicles, e.g. vehicle-to-pedestrians [V2P]
• 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
• CPC Class Codes: Y02T 90/40 : Application of hydrogen technology to transportation, e.g. using fuel cells

Abstract

A vehicle includes: a power reception unit that receives electric power contactlessly from a power transmission unit externally provided; and an electronic device. The power reception unit includes a coil formed to surround a winding axis. Assuming that a region extending in a direction in which the winding axis extends from the coil when viewing the coil from above the vehicle is an adjacent region, the electronic device is away from the adjacent region.

Claims

1. A vehicle comprising:

a power reception unit that receives electric power contactlessly from a power transmission unit externally provided; and

an electronic device,

said power reception unit including a coil formed to surround a winding axis a region in which said electronic device is disposed being positioned in a direction different from a direction in which said winding axis extends from said coil.

2. The vehicle according to claim 1, wherein

an opening is formed at an end portion of said coil, and

assuming that a region extending in the direction in which said winding axis extends from the opening of said coil is an adjacent region, said electronic device is disposed in a region different from said adjacent region.

3. The vehicle according to claim 1, wherein said electronic device is one of a battery capable of storing electric power, a PCU (Power Control Unit) connected to said battery, and a rotating electrical machine connected to said PCU.

4. The vehicle according to claim 1, wherein

said coil is disposed such that said winding axis extends in a width direction of said vehicle, and

said electronic device is disposed at a front side or a rear side of said vehicle relative to said coil.

5. The vehicle according to claim 2, further comprising an adjacent device at least having a portion disposed in said adjacent region when viewed from above the vehicle.

6. The vehicle according to claim 5, wherein

said electronic device includes a battery capable of storing electric power, and

said adjacent device has one of an accumulation portion, a first connection portion, and a second connection portion, said accumulation portion being capable of accumulating energy other than electric power, said first connection portion being connected to said accumulation portion, a supply unit supplying said energy being connected to the first connection portion, said second connection portion being connected to said battery, a power feeding unit supplying electric power being connected to said second connection portion.

7. The vehicle according to claim 1, wherein said coil is disposed such that said winding axis extends in a horizontal direction.

8. The vehicle according to claim 2, wherein

said winding axis includes a first winding axis and a second winding axis different in direction from said first winding axis,

said coil includes a first coil and a second coil, said first coil being formed to surround the first winding axis, said second coil being formed to surround the second winding axis, and

said adjacent region includes a first adjacent region and a second adjacent region, said first adjacent region extending in a direction in which said second winding axis extends from said first coil, said second adjacent region extending as said second winding axis extends from said second coil.

9. The vehicle according to claim 1, wherein a difference in natural frequency between said power transmission unit and said power reception unit is equal to or less than 10% of the natural frequency of said power reception unit.

10. The vehicle according to claim 1, wherein a coupling coefficient between said power reception unit and said power transmission unit is equal to or less than 0.1.

11. The vehicle according to claim 1, wherein said power reception unit receives electric power from said power transmission unit through at least one of a magnetic field and an electric field, said magnetic field being formed between said power reception unit and said power transmission unit and oscillating at a specific frequency, said electric field being formed between said power reception unit and said power transmission unit and oscillating at the specific frequency.

12. A vehicle comprising:

a power reception unit including a coil that receives electric power contactlessly from a power transmission unit externally provided; and

an electronic device,

an electromagnetic field formed by transfer of electric power between said power reception unit and said power transmission unit being distributed more widely from said coil in a second direction than in a first direction, said second direction being different from said first direction,

said electronic device being disposed in a region in a direction different from said second direction from said coil.