Method and apparatus for sensing tire pressure

Details Method and apparatus for sensing tire pressure Method and apparatus for sensing tire pressure

2005-07-05

2005-07-05

Nguyen, Hung (Department: 2636)

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

C340S442000, C340S444000, C340S448000, C340S438000, C073S146000, C073S146500

Reexamination Certificate

active

06914523

ABSTRACT:
An apparatus for sensing pressure in vehicle tires includes an interrogator (102) for providing a tire pressure interrogation signal, and a tire pressure monitor (70) for sensing pressure within a first tire (24) of the vehicle (20) and providing an actual tire pressure signal. A first wheel speed sensor (42) associated with the first tire (24) provides a reference wheel speed signal upon movement of the vehicle (20). A second wheel speed sensor (40) associated with a second tire (22) of the vehicle (20) provides a wheel speed signal upon movement of the vehicle. A controller (60) activates the interrogator (102), monitors the actual tire pressure signal, and correlates the reference wheel speed signal with the wheel speed signal from the second wheel speed sensor (40) for determining a tire pressure value of the second tire (22).

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Technical Disclosure RD-407026 which may have been published in 1998.

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