B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
340/145.1
B60C 23/00 (2006.01) B60C 23/06 (2006.01)
Patent
CA 1287901
ABSTRACT OF THE DISCLOSURE A method is disclosed of detecting a partially deflated tire on a four wheeled vehicle. The angular velocity of each wheel is sensed. The four signals are fed into a processor unit. The unit subtracts some of the signals from one pair of diagonally opposite wheels from the sum of the signals from the other pair of diagonally opposite wheels. The processor senses when the magnitude of the result is between 0.05%and 0.60% of the mean of the two sums. It compares the signals for each of the four wheels in turn with the signals for each of the other wheels, senses when one of said signals is different to the average of all four signals by more than 0.1% and in the event of both sensed signal factors being present, operates a warning device to indicate the presence of a deflated tire.
566627
Holmes Thomas
Walker John Charles
Gowling Lafleur Henderson Llp
Sumitomo Rubber Industries Limited
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