Tire pressure monitoring system

• US 20030205081A1
• Filed: 04/16/2003
• Published: 11/06/2003
• Est. Priority Date: 05/04/2002
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations Incorporated (General Motors Company)
• Inventors: Proschka, Roland
• Granted Patent: US 6,948,359 B2
• Time in Patent Office: Days
• US Class Current: 73/146
• CPC Class Codes: B60C 23/0401 characterised by the type of alarm
• CPC Class Codes: B60C 23/0416 allocating a corresponding wheel position on vehicle, e.g. front/left or rear/right
• CPC Class Codes: B60C 23/0472 to manually allocate ID codes or mounting positions, e.g. by service technicians

Abstract

For a wheel-related monitoring of the air pressure according to the invention, a tire pressure monitoring system is provided for a vehicle which in each case comprises an air pressure sensor, one for each vehicle wheel, which is connected to a control unit with an optical and/or acoustic output unit, wherein the air pressure sensor is associated with the respective vehicle wheel in such a way that a measuring value produced by the air pressure sensor together with a wheel-related coding (C) is transmitted to the control unit.

Claims

1. Tire pressure monitoring system for a vehicle comprising one air pressure sensor for each vehicle wheel, each air pressure sensor being connected to a control unit with an optical and/or acoustic output unit, wherein each air pressure sensor is associated with each respective vehicle wheel such that a measuring value produced by the air pressure sensor together with a wheel-related coding (C) is transmitted to the control unit.

2. The tire pressure monitoring system of claim 1, wherein a central radio receiver is provided for receiving the air pressure values (L) with the wheel-related coding (C).

3. The tire pressure monitoring system of claim 2, wherein the central radio receiver is integrated in the control unit.

4. The tire pressure monitoring system of claim 1, wherein the wheel-related coding (C) is arranged to be visible on a valve belonging to the respective wheel.

5. The tire pressure monitoring system of claim 1, wherein a wheel-related coding (C′

) is deposited as information in the control unit.

6. The tire pressure monitoring system of claim 5, wherein the wheel-related coding (C, C′

) during assembly of the vehicle wheels is actualized as information in the control unit.

7. The tire pressure monitoring system of claim 5, wherein the wheel-related coding (C, C′

) is designated as a symbol, a numeric code and/or a color code.

8. The tire pressure monitoring system of claim 1, wherein the output unit is designed to output an optical and/or acoustic wheel-related warning signal.

9. The tire pressure monitoring system of claim 5, wherein the output unit is designed to output the optical and/or acoustic wheel-related coding (C, C′

) and/or the air pressure values (L).

10. The tire pressure monitoring system of claim 5, wherein an input unit is provided to input the wheel-related coding (C, C′

).

11. The tire pressure monitoring system of claim 10, wherein the output unit and the input unit are designed as a multi-functional display.