Patent Number: 6,612,165

Title: Tire pressure monitoring system with pressure gauge operating mode for indicating when air pressure within a tire is within a predetermined pressure range

Abstract: A tire inflation pressure monitoring system (10) and a method for monitoring air pressure within a tire (14) are provided. The system (10) includes a tire based unit (18) for sensing air pressure within the tire (14) and for transmitting a pressure signal indicative thereof. The system (10) also includes a vehicle based unit (16) for receiving the pressure signal and for comparing the pressure signal to a predefined pressure range. The vehicle based unit (16) is operable in one of (i) a normal operating mode that outputs an alert signal in response to the air pressure within the tire (14) being outside of the predefined pressure range and (ii) a pressure gauge operating mode that outputs an in-range signal in response to the air pressure within the tire (14) being within the predetermined pressure range.

Inventors: Juzswik; David Leonard (Commerce, MI), Wyman; Daniel J. (Canton, MI), LeMense; Thomas John (Farmington, MI)

Assignee: TRW Inc.

International Classification: G01M 17/02 (20060101); B60C 023/02 ()

Expiration Date: 09/02/2020