METHOD AND APPARATUS FOR TRANSPORTING POWER TO ELECTRIC VEHICLE WITH SEGMENTS OF POWER SUPPLY ROAD

• US 20130098723A1
• Filed: 10/15/2010
• Published: 04/25/2013
• Est. Priority Date: 10/15/2009
• Status: Abandoned Application

• Current Assignee: Korea Advanced Institute of Science and Technology
• Original Assignee: National Institute of Advanced Industrial Science and Technology (Government of Japan)
• Inventors: Cho, Dong Ho, Suh, Nam Pyo, Kim, Young Min, Chu, Hyun Woo, Park, Mi Hyun, Yoo, Sang Joo, Eem, Chang Kyoung
• Application Number:
  US13/496,100
• Publication Number:
  US 20130098723A1
• Time in Patent Office: Days
• US Class Current: 191/10
• CPC Class Codes: B60L 5/005 without mechanical contact between the collector and the power supply line
• CPC Class Codes: B60L 53/12 Inductive energy transfer
• 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 53/32 by charging in short intervals along the itinerary, e.g. during short stops
• CPC Class Codes: B60L 53/39 with position-responsive activation of primary coils
• CPC Class Codes: B60M 1/10 Arrangements for energising and de-energising power line sections using magnetic actuation by the passing vehicle
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 50/60 responsive to the presence of foreign objects, e.g. detection of living beings
• 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: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• 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 power transport apparatus for transporting electric power to an electric vehicle on the road is provided. The apparatus includes a plurality of power supply units provided at a road in a longitudinal direction of the road, one or more of the power supply units simultaneously transporting the electric power to the electric vehicle; and a power line supplying the electric power to the respective power supply units.

Claims

1. A power transport apparatus for transporting electric power to an electric vehicle on the road, the apparatus comprising:

a plurality of power supply units provided at a road in a longitudinal direction of the road, one or more of the power supply units simultaneously transporting the electric power to the electric vehicle; and

a power line supplying the electric power to the respective power supply units.

2. The power transport apparatus of claim 1, wherein each of the power supply units includes:

a vehicle detecting sensor detecting whether or not the electric vehicle is placed on the power supply unit;

a power feed line generating electromagnetic field when electric current for transporting the electric power to the electric vehicle flows thereto;

a power switch supplying and cutting off the electric power from the power line to the power feed line; and

a controller controlling the power switch to transport the electric power when the vehicle detecting sensor detects the electric vehicle and to cut off power when the electric vehicle is not detected.

3. A power transport apparatus for transporting electric power to an electric vehicle, the apparatus comprising:

a plurality of power supply units provided at the road in a longitudinal direction of the road and transporting the electric power to the electric vehicle on the road;

a power line supplying the electric power to the respective power supply units; and

a segment controller controlling the power supply units in a manner that one or more of the power supply units simultaneously transport an electrical power to the electric vehicle.

4. The power transport apparatus of claim 3, wherein each of the power supply units includes:

a vehicle detecting sensor detecting whether or not the electric vehicle is placed on the power supply unit;

a communication unit transmitting and receiving information required to control power transportation to and from the electric vehicle traveling on the road and to and from the segment controller;

a power feed line generating electromagnetic field when electric current for transporting the electric power to the electric vehicle flows thereto; and

a power switch supplying and cutting off the electric power from the power line to the power feed line according to the information received by the communication unit.

5. The power transport apparatus of claim 4, wherein the information transmitted from the communication unit to the electric vehicle includes identification information of the power supply unit including the communication unit.

6. The power transport apparatus of claim 4, wherein the information transmitted from the communication unit to the segment controller includes ON/OFF status information of the power switch.

7. A power transport method of transporting electric power to an electric vehicle using a plurality of power supply units provided at a road, the method comprising:

detecting, by a specific power supply unit, the electric vehicle placed on the specific power supply unit;

performing power transportation by the specific power supply unit; and

cutting off the power transportation when the electric vehicle is not detected.

8. A power transport method of transporting electric power to an electric vehicle using a plurality of power supply units provided at a road, the method comprising:

detecting, by a specific power supply unit, the electric vehicle placed on the specific power supply unit;

transmitting, by the specific power supply unit, information of the specific power transport to the electric vehicle;

receiving, by a segment controller, information on the power supply unit on which the electric vehicle is placed and vehicle information including a speed of the electric vehicle from the electric vehicle;

performing, by the segment controller, power transportation of the power supply unit on which the electric vehicle is placed based on the vehicle information; and

cutting off, by the segment controller, the power transportation of the power supply unit over which the electric vehicle passed over.

9. The power transport method of claim 8, wherein in the performance of the power transportation, when the speed of the electric vehicle included in the vehicle information is greater than a preset speed, the segment controller performs power transportation of at least two succeeding power supply units at the same time.

10. The power transport method of claim 8, wherein the vehicle information further includes information on whether the electric vehicle requires power transportation at the present time.