Tire pressure monitoring system

Details Tire pressure monitoring system Tire pressure monitoring system

2006-07-18

2006-07-18

Thompson, Jewel V. (Department: 2855)

Measuring and testing

Tire, tread or roadway

Tire inflation testing installation

Reexamination Certificate

active

07076999

ABSTRACT:
A System of monitoring the air pressure in the tires of a moving vehicle continuously in real time for measuring the pressure in a rotating tire and transmitting the information via magnetic pulses to a sensor pickup located near the tire, but on a non-rotating part of the vehicle, for transmittal via wire to a micro controller for conversion to air pressure units and display. It comprises a sensor module for each wheel, and an electronics module in the passenger compartment. It computes the air pressure by measuring the phase angle between a fixed magnet and a magnet placed on a piston in an air cylinder within the tire.

REFERENCES:
patent: 4163208 (1979-07-01), Merz
patent: 5130694 (1992-07-01), Zainaleian
patent: 5526861 (1996-06-01), Oshita et al.
patent: 5814725 (1998-09-01), Furuichi et al.
patent: 5924055 (1999-07-01), Hattori
patent: 6647771 (2003-11-01), Burns

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