ROAD-BASED SUPPORT FOR ELECTRIC VEHICLES

• US 20120118693A1
• Filed: 07/27/2010
• Published: 05/17/2012
• Est. Priority Date: 07/27/2009
• Status: Active Grant

• Current Assignee: Eli Benoliel
• Original Assignee: Eli Benoliel
• Inventors: Benoliel, Eli
• Granted Patent: US 8,827,011 B2
• Time in Patent Office: Days
• US Class Current: 191/22.C
• CPC Class Codes: B60M 1/36 Single contact pieces along the line for power supply
• CPC Class Codes: B60M 7/006 for auto-scooters or the like, the power being supplied over a broad surface
• CPC Class Codes: G06Q 99/00 Subject matter not provided for in other groups of this subclass

Abstract

A method of providing electrical power to road vehicles, comprises providing electrical power to a cable running along a length of a road; from said cable providing power to a distribution mechanism under said road; from said distribution mechanism connecting to switchable elements of a surface of said road, said switchable elements being distributed over said surface; and at each element switching on power when a vehicle is detected overhead and switching off power otherwise.

Claims

1. A matrix of individually switchable conductive elements built into a road surface.

2. The matrix of claim 1, wherein elements of said matrix are configured with a vehicle detector and a switch governed by the vehicle detector, thereby to electrify said conductive element only when a vehicle is directly overhead to pick up electricity.

3. The matrix of claim 2, wherein respective switches are configured with substantially a millisecond of switching reaction time.

4. The matrix of claim 1, wherein said elements are connected via under road connectors to a transformer.

5. The matrix of claim 2, wherein said vehicle detector is further configured with an identification unit for identifying the vehicle, thereby to electrify a respective element only in the presence of an identified vehicle.

6. The matrix of claim 5, wherein said identification unit is configured to report vehicle identifications to a billing unit for billing a vehicle user.

7. The matrix of claim 1, wherein said elements comprise foils.

8. A distribution system for the matrix of claim 1, the distribution system comprising a main cable running parallel with the longitudinal axis of the road, step down transformers at predetermined intervals along the main cable and feeder cables running from said transformers to said elements.

9. The distribution system of claim 8, configured as a voltage limited current source to a load drawing from said elements.

10. A method of surfacing a road to render said road surface suitable for powering electrical vehicles, the method comprising:

laying a relatively high voltage cable along a length of said road;

providing step-down transformers at predetermined distances along said cable;

placing individually switchable conductive elements into said road surface;

connecting said individually switchable conductive elements to said step-down transformers.

11. A method of providing electrical power to road vehicles, comprising:

providing electrical power to a cable running along a length of a road;

from said cable providing power to a distribution mechanism under said road;

from said distribution mechanism connecting to switchable elements of a surface of said road, said switchable elements being distributed over said surface;

at each element switching on power when a vehicle is detected overhead and switching off power otherwise.