System and method for making protocol changes to a tire pressure monitoring sensor

Patent metadata

Field	Value
Publication number	US-11225110-B2
Application number	US-201916716610-A
Country	US
Kind code	B2
Filing date	Dec 17, 2019
Priority date	Dec 17, 2019
Publication date	Jan 18, 2022
Grant date	Jan 18, 2022

Abstract

Received acceleration or motion information are analyzed and when the analysis of this information indicates that motion or acceleration is detected, received burst patterns from the other sensors are analyzed. Based upon analyzing the detected burst patterns from the other sensors, a first burst pattern is selectively altered to transmit according to a single communication format, the single format being for a single vehicle manufacturer.

First claim

What is claimed is:

1. A tire pressure monitoring (TPM) sensor of a vehicle, the sensor comprising:
a sensing device that is configured to sense pressure information of a tire;
a transmission buffer coupled to the sensing device, the transmission buffer utilized to store the sensed pressure information;
a transmitter circuit coupled to the transmission buffer;
a receiver circuit that is configured to receive acceleration or motion information from an accelerometer, the receiver circuit also configured to receive sensed burst patterns from other tire pressure monitoring sensors of the vehicle;
a control circuit that is coupled to the pressure sensing device, the transmitter circuit, and the receiver circuit, the control circuit configured to cause the transmission of a first burst pattern from the transmission buffer to an external receiver device via the transmitter circuit, the first burst pattern comprising the sensed tire pressure information according to a plurality of communication formats for a plurality of vehicle manufacturers;
wherein the control circuit is configured to perform a first analysis on the received acceleration or motion information and when the first analysis indicates that motion or acceleration is detected, perform a second analysis on the detected burst patterns from the other tire pressure monitoring sensors of the vehicle that are received by the receiver circuit,
wherein the control circuit is configured to, based upon the second analysis of the detected burst patterns from the other tire pressure monitoring sensors of the vehicle, selectively alter the first burst pattern to a single communication format for a single vehicle manufacturer, and cause the transmitter circuit to transmit the pressure information in the transmission buffer according to the single communication format.

2. The TPM sensor of claim 1 , wherein the pressure information is the measured pressure of the tire.

3. The TPM sensor of claim 1 , wherein the sensing device further detects temperature information concerning the tire.

4. The TPM sensor of claim 1 , wherein the detected burst patterns from the other tire pressure monitoring sensors of the vehicle comprise three burst patterns, each of the three burst patterns being of the same communication format.

5. The TPM sensor of claim 1 , wherein the detected burst patterns from the other tire pressure monitoring sensors of the vehicle comprise one burst pattern of a single communication format and two burst patterns each having multiple communication formats.

6. The TPM sensor of claim 1 , wherein the detected burst patterns include at least one burst pattern having the single communication format, and the alteration of the first burst pattern is made based upon a probability that the single communication format is correct.

7. The TPM sensor of claim 1 , wherein the sensor is moved from the tire of a first vehicle to a tire of a second vehicle and the detected burst patterns from the other tire pressure monitoring sensors of the vehicle are from sensors on the second vehicle.

8. A method of operating a tire pressure monitoring (TPM) sensor of a vehicle, the method comprising:
sensing pressure information of a tire at a sensing device;
storing the sensed pressure information in transmission buffer;
at a receiver circuit, receiving acceleration or motion information from an accelerometer and receiving sensed burst patterns from other tire pressure monitoring sensors of the vehicle;
at a control circuit, causing transmission of a first burst pattern from the transmission buffer to an external receiver device via the transmitter circuit, the first burst pattern comprising the sensed tire pressure information according to a plurality of communication formats for a plurality of vehicle manufacturers;
at the control circuit, analyzing the received acceleration or motion information and when the analyzing indicates that motion or acceleration is detected, analyzing the detected burst patterns from the other tire pressure monitoring sensors of the vehicle that are received by the receiver circuit;
at the control circuit and based upon analyzing the detected burst patterns from the other tire pressure monitoring sensors of the vehicle, selectively altering the first burst pattern to a single communication format for a single vehicle manufacturer, and causing the transmitter circuit to transmit the pressure information in the transmission buffer according to the single communication format.

9. The method of claim 8 , wherein the pressure information is the measured pressure of the tire.

10. The method of claim 8 , further comprising detecting temperature information concerning the tire by the sensing device.

11. The method of claim 8 , wherein the detected burst patterns from the other tire pressure monitoring sensors of the vehicle comprise three burst patterns, each of the three burst patterns being of the same communication format.

12. The method of claim 8 , wherein the detected burst patterns from the other tire pressure monitoring sensors of the vehicle comprise one burst pattern of a single communication format and two burst patterns each having multiple communication formats.

13. The method of claim 8 , wherein the detected burst patterns include at least one burst pattern having the single communication format, and the alteration of the first burst pattern is made based upon a probability that the single communication format is correct.

14. The method of claim 8 , further comprising moving the TPM sensor from the tire of a first vehicle to a tire of a second vehicle.

15. A computer readable non-transitory medium having a computer readable program code embodied therein, the computer readable program code adapted to be executed to implement a method of operating a tire pressure monitoring system of a vehicle, the method comprising:
sensing pressure information of a tire at a sensing device;
storing the sensed pressure information in transmission buffer;
at a receiver circuit, receiving acceleration or motion information from an accelerometer and receiving sensed burst patterns from other tire pressure monitoring sensors of the vehicle;
at a control circuit, causing transmission of a first burst pattern from the transmission buffer to an external receiver device via the transmitter circuit, the first burst pattern comprising the sensed tire pressure information according to a plurality of communication formats for a plurality of vehicle manufacturers;
at the control circuit, analyzing the received acceleration or motion information and when the analyzing indicates that motion or acceleration is detected, analyzing the detected burst patterns from the other tire pressure monitoring sensors of the vehicle that are received by the receiver circuit;
at the control circuit and based upon an analysis of the detected burst patterns from the other tire pressure monitoring sensors of the vehicle, selectively altering the first burst pattern to a single communication format for a single vehicle manufacturer, and causing the transmitter circuit to transmit the pressure information in the transmission buffer according to the single communication format.

16. The computer readable non-transitory medium of claim 15 , wherein the pressure information is the measured pressure of the tire.

17. The computer readable non-transitory medium of claim 15 , wherein the method further comprises detecting temperature information concerning the tire by the sensing device.

18. The computer readable non-transitory medium of claim 15

Assignees

• Continental automotive systems inc

Inventors

• Deniau Jean-Christophe
• Fink Alexander

Classifications

• B60C23/002

  by monitoring conditions other than tyre pressure or deformation · CPC title

• B60C23/0479

  Communicating with external units being not part of the vehicle, e.g. tools for diagnostic, mobile phones, electronic keys or service stations · CPC title

• B60C23/0486

  comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors · CPC title

• B60C23/0488

  Movement sensor, e.g. for sensing angular speed, acceleration or centripetal force · CPC title

• B60C23/0461

  externally triggered, e.g. by wireless request signal, magnet or manual switch · CPC title