TYRE PRESSURE DETERMINATION

摘要

A method and apparatus for determining tyre pressure in automotive vehicles utilises 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 tyre 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 tyre pressure sensing under normal conditions of vehicle use.