Tire pressure monitoring system with pressure gauge operating mode for indicating when air pressure within a tire is within a predetermined pressure range
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United States of America Patent
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Sep 2, 2003
Grant Date -
Aug 7, 2003
app pub date -
Feb 4, 2002
filing date -
Feb 4, 2002
priority date (Note) -
In Force
status (Latency Note)
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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.
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