Tyre pressure determination
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United States of America Patent
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-
Feb 5, 2002
Grant Date -
N/A
app pub date -
Jan 13, 2000
filing date -
May 14, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for determining tire pressure in automotive vehicles utilices twin spaced parallel and non-transverse piezoelectric cables which are traversed by a vehicle to produce a voltage pulse having a shapes or profiles characteristic of the tire pressure. Waveform analysis on the basis of a software algorithm and/or look-up calibration data enables numerical pressure determination. The system is well adapted for remote automotive vehicle tire pressure sensing under normal conditions of vehicle use.
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