Low or flat tire warning system

Details Low or flat tire warning system Low or flat tire warning system

1981-02-17

1982-10-19

Waring, Alvin H.

Communications: electrical

Selective

Having indication or alarm

200 6122, 731462, B60C 2300

Patent

active

043552986

ABSTRACT:
An aircraft low or flat tire flight deck warning system monitors the rotational speed and thus, the condition of the tires. A differential tire rotational speed signal is compared to a variable reference by a comparator which generates a warning signal when the differential signal is greater than or equal to the reference. The reference signal is derived from one of the tire rotation signals or from an independent ground speed signal and is therefore proportional to the rotational speed of a properly inflated tire and to the aircraft ground speed. Separate references and comparators cooperate to generate separate warning signals for distinct dangerous tire conditions. The warning signals are inhibited under a variety of conditions.

REFERENCES:
patent: 3374460 (1968-03-01), Massoubre
patent: 3614732 (1971-10-01), Lejeune
patent: 3645479 (1972-02-01), Kostroun et al.
patent: 3707701 (1972-12-01), Neu
patent: 4102184 (1978-07-01), Castleberry
patent: 4103283 (1978-07-01), Lee
patent: 4110732 (1978-08-01), Jarocha et al.

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