System and method for harvesting energy for an electronic device, and a tire configured for use with the same

Patent metadata

Field	Value
Publication number	US-11845304-B2
Application number	US-202217938257-A
Country	US
Kind code	B2
Filing date	Oct 5, 2022
Priority date	Apr 18, 2019
Publication date	Dec 19, 2023
Grant date	Dec 19, 2023

Abstract

A system for powering an electronic device within a tire is provided, the system comprising: a generator; an electrically conductive wheel coated in a non-conductive coating, the wheel including rim lips, wherein one of the rim lips includes a conductive area; the tire including bead portions, sidewalls, shoulders, a tread oriented in a tread region, and an inner surface; a conductive element extending from a bead portion, and in contact with the inner surface; an electronic device within the vehicle tire; and a ground path extending through a thickness of the vehicle tire from the inner surface to an exterior surface in a contact patch of the tread; wherein the generator is electrically connected to the electrically conductive wheel; wherein the electronic device is electrically connected to the conductive element and the ground path; and wherein the conducive element contacts the conductive area.

First claim

What is claimed is:

1. A system for powering an electronic device within a vehicle tire, comprising:
an electrical energy generator;
an electrically conductive vehicle wheel including a pair of rim lips;
the vehicle tire including a pair of bead portions, a pair of sidewalls, a pair of shoulders, a tread oriented in a tread region, and an inner surface;
at least one conductive element extending from at least one of the pair of bead portions, and in contact with the inner surface;
at least one electronic device within the vehicle tire; and
at least one ground path extending through a thickness of the vehicle tire from the inner surface to an exterior surface in a contact patch of the tread;
wherein the electrical energy generator is electrically connected to the electrically conductive vehicle wheel; and
wherein the at least one electronic device is electrically connected to the at least one conductive element and the at least one ground path.

2. The system of claim 1 , further comprising an electricity storage device electrically connected to the at least one conductive element and the at least one ground path.

3. The system of claim 1 , wherein the at least one conductive element is an electrical wire.

4. The system of claim 1 , wherein the at least one conductive element is a conductive rubber material oriented in a strip, extending radially from at least one of the pair of bead portions, in contact with the inner surface, and terminating in the tread region.

5. The system of claim 1 , wherein the at least one conductive element is a conductive rubber material oriented in a sheet, extending radially from at least one of the pair of bead portions, in contact with the entirety of the inner surface, and terminating in the tread region.

6. The system of claim 1 , wherein the vehicle wheel is an electrically conductive vehicle wheel coated in a non-conductive coating.

7. The system of claim 6 , wherein at least one of the pair of rim lips includes a conductive area.

8. The system of claim 7 , wherein the conductive area is a portion of the rim lip where the non-conductive coating has been removed.

9. The system of claim 7 , wherein the conductive area is oriented completely circumferentially about the rim lip.

10. The system of claim 7 , wherein the conductive area is oriented at a single circumferential point on the rim lip.

11. The system of claim 7 , further comprising a conductive coating covering the conductive area.

12. The system of claim 7 , further comprising a conductive cover covering the conductive area.

13. The system of claim 7 , further comprising a non-conductive cover covering the conductive area and a conductor oriented between the non-conductive cover and the conductive area.

14. The system of claim 1 , wherein the conductive element extends in contact with the inner surface along at least one of the pair of sidewalls, along at least one of the pair of shoulders, and terminating in the tread region.

15. The system of claim 1 , wherein the at least one conducive element contacts the conductive area.

16. The system of claim 1 , wherein the at least one conductive element is a conductive rubber material.

17. The system of claim 1 , wherein the at least one conductive element includes both an electrical wire and a conductive rubber material.

Assignees

• Bridgestone Americas Tire Operations Llc

Inventors

• Wei Terence E
• Barr Jason R
• Sams Thomas A
• Doraiswamy Srikrishna
• Hanchin Timothy J

Classifications

• F03G7/081

  recovering energy from moving road or rail vehicles, e.g. collecting vehicle vibrations in the vehicle tyres or shock absorbers · CPC title

• B60C23/041 Primary

  Means for supplying power to the signal- transmitting means on the wheel · CPC title

• B60C23/0493 Primary

  for attachment on the tyre · CPC title

• B60C19/08

  Electric-charge-dissipating arrangements · CPC title

• B60B21/12

  Appurtenances, e.g. lining bands · CPC title