Method of detecting a deflated tire on a vehicle

Details Method of detecting a deflated tire on a vehicle Method of detecting a deflated tire on a vehicle

1988-05-13

1989-10-24

Crosland, Donnie L.

Communications: electrical

Land vehicle alarms or indicators

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

340444, 340671, 731465, B60C 2300

Patent

active

048765287

ABSTRACT:
A method of detecting a deflated tire on a vehicle which includes sensing the angular velocity of each wheel and producing a signal proportional thereto, processing the four signals in a processor unit which subtracts the sum of the signals from one pair of diagonally opposite wheels from the sum of the signals from the other pair of diagonally opposite wheels, sensing when the magnitude of the result is between 0.05% and 0.60% of the mean of the two sums, comparing the signals for each of the four wheels in turn with the signals for each of the other wheels, sensing when one of said signals is different from the average of all four signals by more than 0.1% and in the event of both sensed signal factor being present, operating a warning device to indicate a tire is partially or completely deflated.

REFERENCES:
patent: 3613075 (1971-10-01), Griffiths
patent: 3691524 (1972-09-01), Frost et al.
patent: 4506328 (1985-03-01), Bateman
patent: 4545623 (1985-10-01), Sato et al.

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