UNIT FOR MEASURING AND SYSTEM FOR MONITORING TIRE PRESSURE IN TIRES OF THE EXTENDED MOBILITY OR OTHER TYPE

• US 20100288039A1
• Filed: 03/18/2008
• Published: 11/18/2010
• Est. Priority Date: 03/22/2007
• Status: Active Grant

• Current Assignee: Compagnie Generale DES Etablissements Michelin SCA
• Original Assignee: Michelin Recherche et Technique SA (Compagnie Generale DES Etablissements Michelin SCA), Societe De Technologie Michelin (Compagnie Generale DES Etablissements Michelin SCA)
• Inventors: Liberge, Franck, Corniot, Philippe
• Granted Patent: US 8,061,192 B2
• Time in Patent Office: Days
• US Class Current: 73/146.5
• 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 23/0455 Transmission control of wireless signals

Abstract

Measuring unit with at least a pressure sensor and signal transmission means, intended to be fitted on a tire/wheel assembly, characterized in that it comprises a logic indicator with two states, active and inactive, and in that the logic indicator becomes active each time the pressure measured by the pressure sensor is below a given threshold, close to zero.

Claims

1. Measuring unit with at least a pressure sensor and signal transmission means, intended to be fitted on a tire/wheel assembly, characterized in that it comprises a logic indicator with two states, active and inactive, and in that the logic indicator becomes active each time the pressure measured by the pressure sensor is below a given threshold, close to zero.

2. Measuring unit according to claim 1, such that the threshold is equal to 100 mbar.

3. Measuring unit according to claim 1, such that the threshold is equal to 200 mbar.

4. Measuring unit according to claim 1, designed to transmit an alert message to a central unit when the logic indicator is active.

5. Measuring unit according to claim 1, in which the logic indicator of the measuring unit can be returned to the inactive state by a diagnostic tool.

6. Measuring unit according to claim 1, capable of storing and transmitting to a central unit an additional code dependent on the type of tire of the tire/wheel assembly.

7. System for monitoring the pressure of a tire of a vehicle comprising a central unit with a receiver and processing means, and a measuring unit according to claim 1.

8. System according to claim 7, in which the processing means of the central unit have a plurality of programs for processing data transmitted by the measuring unit and in which each data processing program is suited to a given type of tire.

9. System according to claim 7, in which the signals comprising an additional code are transmitted by a diagnostic tool.

10. System according to claim 7, in which the signals comprising an additional code are transmitted by the measuring unit.

11. System according to claim 10, in which the additional code stored by the measuring unit can be modified by means of a diagnostic tool.

12. System according to claim 7, in which the type of tire is chosen from the group of tires with extended mobility and standard tires.

13. System according to claim 12, in which the type of tire is chosen from the group of “

summer”

tires and “

winter”

tires.