Dual inner loop fault inhibit of aircraft outer loop

Details Dual inner loop fault inhibit of aircraft outer loop Dual inner loop fault inhibit of aircraft outer loop

1981-03-30

1983-11-22

Smith, Jerry

Boots, shoes, and leggings

244 1713, 244177, 244194, G06F 1550, G06G 770

Patent

active

044173083

ABSTRACT:
In an automatic flight control system, failure of dual inner loop actuators (12, 13) to track position (22, 23) within a permissible tolerance (182) of each other will cause automatic shut down (185, 190) of an outer loop actuator (37) which is responsive (61) to the same proportional signals (54, 55) as are the inner loop actuators. The invention is disclosed in a system in which automatic flight control positioning of the control surfaces of the aircraft is through a fast, limited authority inner loop, the authority of which is centered by repositioning of the outer loop.

REFERENCES:
patent: 4004756 (1977-01-01), Gerstine et al.
patent: 4029271 (1977-06-01), Murphy et al.
patent: 4078750 (1978-03-01), Tomlinson
patent: 4109886 (1978-08-01), Tribken et al.
patent: 4213584 (1980-07-01), Tefft et al.
patent: 4279391 (1981-07-01), Adams et al.

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