Vehicle and wireless power supply system

Patent metadata

Field	Value
Publication number	US-9481258-B2
Application number	US-201214116879-A
Country	US
Kind code	B2
Filing date	May 10, 2012
Priority date	May 12, 2011
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

A vehicle ( 3, 3 A) is provided with: a power receiving coil ( 3 a ) that is provided so as to face a ground power supply coil ( 2 a ) and that receives electric power from the ground power supply coil ( 2 a ); a storage battery ( 3 d ) that stores the electric power received by the power receiving coil ( 3 a ); and a power supply coil ( 3 f ) that supplies the electric power received by the power receiving coil ( 3 a ) to the outside. A transporting system is provided with: a plurality of travel tracks ( 1 A, 1 B) along which the plurality of vehicles ( 3, 3 A) travel; and power transfer areas (Ka, Kb) where a vehicle ( 3, 3 A) traveling along a travel track ( 1 A) and a vehicle ( 3, 3 A) traveling along another travel track ( 1 B) are able to mutually transfer electric power to each other.

First claim

The invention claimed is:

1. A wireless power supply system that supplies electric power from a ground power supply device to a vehicle without making contact with that vehicle, comprising:
the vehicle comprising a power receiving device that is provided so as to face the ground power supply device and that receives electric power from the ground power supply device, a power storage device that stores the electric power received by the power receiving device, and a power supply device that supplies at least a portion of the electric power received by the power receiving device to another vehicle; and
a plurality of parking areas that are mutually adjacent to each other where the vehicle and the another vehicle park mutually adjacent to each other.

2. The wireless power supply system according to claim 1 , wherein the parking areas are provided on travel tracks along which moving objects in a form of unmanned transporting vehicles travel.

3. The wireless power supply system according to claim 1 , wherein the ground power supply system is provided at only a portion of the plurality of parking areas.

4. A transporting system comprising:
a plurality of vehicles that are driven by a power storage device and that receive electric power from outside by a power receiving device and supply electric power to outside by a power supply device;
a plurality of travel tracks along which the vehicles travel; and
power transfer areas that are areas where a particular travel track is adjacent to another travel track, and where a vehicle traveling along a particular travel track and a vehicle traveling along another travel track are able to mutually transfer electric power to each other, wherein
the vehicles mutually transfer electric power while traveling in a power transfer area.

5. The transporting system according to claim 4 , wherein power receiving coils that receive electric power without making contact and power supply coils that receive electric power without making contact are provided in a plurality of positions in the vehicles.

6. The transporting system according to claim 4 , wherein a ground power supply system that wirelessly supplies electric power to the vehicles is provided at either one of the particular travel track and the another travel track.

7. The transporting system according to claim 4 , wherein if there is the vehicle traveling along the another travel track adjacent to a particular travel track, the vehicle traveling along the particular travel track acquires information about the amount of electric power remaining in the vehicle traveling along the another travel track; and
if a host remaining battery level is higher than the other remaining battery level, the vehicle traveling along a particular travel track supplies electric power to the vehicle traveling along the another travel track.

8. The transporting system according to claim 7 , wherein the information about the amount of electric power is the other remaining battery level.

9. The transporting system according to claim 4 , wherein if there is the vehicle traveling along the another travel track adjacent to a particular travel track, the vehicle traveling along the particular travel track acquires information about the amount of electric power remaining in the vehicle traveling along the another travel track; and
if a host remaining battery level is lower than the other remaining battery level, the vehicle traveling along a particular travel track receives electric power from the vehicle traveling along the another travel track.

10. The transporting system according to claim 9 , wherein the information about the amount of electric power is the other remaining battery level.

Assignees

• Niizuma Motonao
• Ihi Corp

Inventors

• Niizuma Motonao

Classifications

• H02J50/80

  involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices · CPC title

• B60M7/00

  Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway · CPC title

• Y02T90/14

  Plug-in electric vehicles · CPC title

• Y02T10/7072

  Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors · CPC title

• B60L5/005

  without mechanical contact between the collector and the power supply line · CPC title