TIRE PRESSURE MONITORING (TPM) AND REMOTE KEYLESS ENTRY (RKE) SYSTEM FOR A VEHICLE

• US 20080100429A1
• Filed: 11/01/2006
• Published: 05/01/2008
• Est. Priority Date: 11/01/2006
• Status: Abandoned Application

• Current Assignee: Lear Corporation
• Original Assignee: Lear Corporation
• Inventors: Tang, Qingfeng T., Nantz, John S., Luo, Yi
• Application Number:
  US11/555,366
• Publication Number:
  US 20080100429A1
• Time in Patent Office: Days
• US Class Current: 340/447
• CPC Class Codes: B60C 23/0408 transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
• CPC Class Codes: B60C 23/0433 Radio signals
• CPC Class Codes: B60C 23/0444 Antenna structures, control or arrangements thereof, e.g. for directional antennas, diversity antenna, antenna multiplexing or antennas integrated in fenders

Abstract

The embodiments described herein include a tire pressure monitoring (TPM)/remote keyless entry (RKE) system and method for a vehicle. The system includes a TPM sensor configured to sense the condition of a vehicle tire and transmit a TPM sensor signal during a first predetermined time period. A RKE device is included that is configured to transmit a RKE signal during a second predetermined time period. Additionally, a TPM/RKE module is configured to operate in a TPM mode and a RKE mode. The TPM/RKE module receives the TPM sensor signal during the TPM mode and the RKE signal during the RKE mode. The TPM/RKE module is also configured to automatically transition between the TPM mode and the RKE mode in accordance with the first and the second predetermined time periods.

Claims

1. A tire pressure monitoring (TPM)/remote keyless entry (RKE) system for a vehicle comprising:

a TPM sensor configured to sense the condition of a vehicle tire and transmit a TPM sensor signal during a first predetermined time period;

a RKE device configured to transmit a RKE signal during a second predetermined time period; and

a TPM/RKE module being configured to operate in a TPM mode and a RKE mode, the TPM/RKE module receiving the TPM sensor signal during the TPM mode and the RKE signal during the RKE mode, the TPM/RKE module being configured to automatically transition between the TPM mode and the RKE mode in accordance with the first and the second predetermined time periods.

2. The system of claim 1, wherein the TPM sensor includes a TPM sensor that is void of an internal power source.

3. The system of claim 1, wherein the TPM/RKE module generates an interrogation pulse signal for the TPM sensor during the TPM mode.

4. The system of claim 3, wherein the TPM sensor is configured to generate TPM sensor signals in response to the interrogation pulse and the TPM/RKE module is configured to receive the TPM sensor signals.

5. The system of claim 4, wherein the generated TPM sensor signals include data relating to the condition of at least one wheel of the vehicle.

6. The system of claim 1, wherein the TPM/RKE module includes a controller, wherein the TPM/RKE module automatically transitions between the TPM mode and the RKE mode when the controller determines that the either one of the first predetermined time period or the second predetermined time period has been reached.

7. The system of claim 1, wherein the TPM/RKE module receives a RKE interrogation signal during the RKE mode.

8. The system of claim 7, wherein the TPM/RKE module generates a module response signal in response to the RKE interrogation signal.

9. The system of claim 1, wherein the TPM mode and the RKE mode each include a transmitting phase for the TPM/RKE module to transmit signals and a receiving phase for the TPM/RKE module to receive signals.

10. A method of operation for a tire pressure monitoring (TPM)/remote keyless entry (RKE) system for a vehicle, wherein the TPM/RKE system includes a TPM/RKE module, the method comprising:

configuring the TPM/RKE module to operate in a TPM mode and a RKE mode;

transmitting a TPM sensor signal during a first predetermined time period;

transmitting a RKE signal during a second predetermined time period; and

receiving the TPM sensor signal during the TPM mode;

receiving the RKE signal during the RKE mode; and

transitioning automatically between the TPM mode and the RKE mode in accordance with the first and the second predetermined time periods.

11. The method of claim 10, wherein the TPM sensor includes a TPM sensor that is void of an internal power source.

12. The method of claim 10, further comprising generating an interrogation pulse signal for the TPM sensor during the TPM mode through the use of the TPM/RKE module.

13. The method of claim 12, further comprising generating the TPM sensor signals in response to the interrogation pulse.

14. The method of claim 13, wherein the generated TPM sensor signals include data relating to the condition of at least one wheel of the vehicle.

15. The method of claim 10, wherein the TPM/RKE module includes a controller, wherein the TPM/RKE module automatically transitions between the TPM mode and the RKE mode when the controller determines that the either one of the first predetermined time period or the second predetermined time period has been reached.

16. The method of claim 10, further comprising receiving a RKE interrogation signal during the RKE mode.

17. The method of claim 16, further comprising generating a module response signal in response to the RKE interrogation signal.

18. The method of claim 10, wherein the TPM mode and the RKE mode each include a transmitting phase for the TPM/RKE module to transmit signals and a receiving phase for the TPM/RKE module to receive signals.

19. A tire pressure monitoring (TPM)/remote keyless entry (RKE) system for a vehicle comprising:

a TPM sensor configured to sense the condition of a vehicle tire and transmit a TPM sensor signal during a first predetermined time period, wherein the TPM sensor is void of an internal power source;

a RKE device configured to transmit a RKE signal during a second predetermined time period; and

a TPM/RKE module being configured to operate in a TPM mode and a RKE mode, the TPM/RKE module generating an interrogation pulse signal for the TPM sensor and receiving the TPM sensor signal during the TPM mode, the TPM/RKE module receiving a RKE interrogation signal and generating a module response signal in response to the RKE interrogation signal during the RKE mode, wherein the TPM/RKE module is configured to automatically transition from the TPM mode to the RKE mode when the first predetermined time period has been reached and to automatically transition from the RKE mode to the TPM mode when the second predetermined time period has been reached.

20. The system of claim 19, wherein a transmit/receive switching event occurs between the generation of the interrogations pulse signal and the reception of the TPM signal during the TPM mode;

and

wherein a receive/transmit switching event occurs between the reception of the RKE interrogation signal and the generation of the module response signal during the RKE mode.