Tire having radio frequency identification device for monitoring structural health

Patent metadata

Field	Value
Publication number	US-10460226-B2
Application number	US-201515538238-A
Country	US
Kind code	B2
Filing date	Nov 13, 2015
Priority date	Dec 23, 2014
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

A tire includes a plurality of tire components defining a plurality of layers. A radio frequency identification (RFID) tag is disposed between at least two of the plurality of layers. The RFID tag is in contact with each of the at least two layers and is configured to transmit a response signal in response to receiving a request signal. When no air is in a region surrounding the RFID tag, a first response signal is emitted from the tire at a first frequency and first power. However, when air is in the region surrounding the RFID tag, a second response signal is emitted from the tire at the first frequency and a second power different from the first power.

First claim

What is claimed is:

1. A tire structural health monitoring assembly comprising:
a tire having a plurality of components including:
a pair of annular beads,
a body ply extending between the annular beads,
a circumferential belt disposed above the body ply and extending axially across a portion of the body ply,
a circumferential tread disposed above the circumferential belt,
a pair of shoulders extending from opposite sides of the circumferential tread, and
a pair of sidewalls, each sidewall extending between one of the annular beads and one of the shoulders;

at least one radio frequency identification (RFID) tag disposed between two components of the tire, wherein the RFID tag is in contact with each of the two components; and
an RFID reader configured to receive a response signal from the RFID tag,
wherein, when no air is present in a region surrounding the RFID tag, the RFID reader receives a response signal at a first frequency and a first power level, and
wherein, when air is present in the region surrounding the RFID tag, the RFID reader receives a response signal at the first frequency and a second power level different from the first power level; and

a processor configured to identify the power level of a response signal received by the RFID reader at the first frequency, and further configured to transmit a notification when the power level of the response signal is outside a pre-determined range.

2. The assembly of claim 1 , wherein:
when no air is present in the region surrounding the RFID tag, the RFID reader receives a response signal at a second frequency different from the first frequency and a third power level, and
when air is present in the region surrounding the RFID tag, the RFID reader receives a response signal at the second frequency and a fourth power level different from the third power level.

3. The assembly of claim 1 , wherein the processor is part of the RFID reader.

4. The assembly of claim 1 , wherein the processor is spaced from the RFID reader.

5. The assembly of claim 1 , wherein the tire is mounted to a vehicle and the RFID reader is mounted to the vehicle proximate to the tire.

6. The assembly of claim 1 , wherein the RFID reader is a handheld device.

7. The assembly of claim 1 , wherein the RFID reader is mounted to a stationary object.

8. A tire comprising:
a plurality of tire components defining a plurality of layers;
a radio frequency identification (RFID) tag disposed between at least two of the plurality of layers,
wherein the RFID tag is in contact with each of the at least two layers, and
wherein the RFID tag is configured to transmit a response signal in response to receiving a request signal, such that when no air is in a region surrounding the RFID tag, a first response signal is emitted from the tire at a first frequency and first power, and such that when air is in the region surrounding the RFID tag, a second response signal is emitted from the tire at the first frequency and a second power different from the first power.

9. The tire of claim 8 , wherein the RFID tag includes a plurality of RFID tags at different locations.

10. The tire of claim 8 , wherein the RFID tag is disposed between a first belt and a second belt.

11. The tire of claim 8 , wherein the RFID tag is disposed between a belt and a body ply.

12. The tire of claim 8 , wherein the RFID tag is disposed between a retread and a carcass.

13. The tire of claim 8 , wherein when no air is in the region surrounding the RFID tag, a third response signal is emitted from the tire at a second frequency and a third power, and wherein when air is in the region surrounding the RFID tag, a fourth response signal is emitted from the tire at the second frequency and a fourth power different from the third power.

Assignees

• Bridgestone Americas Tire Operations Llc

Inventors

• Wei Terence E
• Wilson Paul B

Classifications

• B60C2019/004

  Tyre sensors other than for detecting tyre pressure · CPC title

• G06K19/07764 Primary

  the adhering arrangement making the record carrier attachable to a tyre (tyre temperature or pressure control arrangements, see B60C23/00) · CPC title

• B60C2019/007

  triggered by sensors · CPC title

• B60C11/246

  Tread wear monitoring systems · CPC title

• B60C23/0444

  Antenna structures, control or arrangements thereof, e.g. for directional antennas, diversity antenna, antenna multiplexing or antennas integrated in fenders · CPC title