Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Aeronautical vehicle
Patent
1997-07-01
2000-03-21
Cuchlinski, Jr., William A.
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Aeronautical vehicle
701120, 701121, 244 124, 244 125, 244 51, 244 75R, B64C 1900
Patent
active
060412739
ABSTRACT:
A digital longitudinal Aircraft Propulsion Control (APC) system of a multiengine aircraft is provided by engine thrust modulation in response to comparing an input flightpath angle signal .gamma.c from a pilot thumbwheel or an ILS system with a sensed flightpath angle .gamma. to produce an error signal .gamma.e that is then integrated (with reasonable limits) to generate a drift correction signal to be added to the error signal .gamma.e after first subtracting a lowpass filtered velocity signal Vel.sub.f for phugoid damping. The output error signal is multiplied by a constant to produce an aircraft thrust control signal ATC of suitable amplitude to drive a throttle servo for all engines, each of which includes its own full-authority digital engine control (FADEC) computer. An alternative APC system omits sensed flightpath angle feedback and instead controls the flightpath angle by feedback of the lowpass filtered velocity signal Vel.sub.f which also inherently provides phugoid damping. The feature of drift compensation is retained.
REFERENCES:
patent: 3096050 (1963-07-01), Snowdon
patent: 3591110 (1971-07-01), Dramer et al.
patent: 3618878 (1971-11-01), Klein et al.
patent: 3627238 (1971-12-01), Menn
patent: 3665465 (1972-05-01), Miller
patent: 3908934 (1975-09-01), Schloeman
patent: 4357663 (1982-11-01), Robbins et al.
patent: 4471439 (1984-09-01), Robbins et al.
patent: 4536843 (1985-08-01), Lambregts
patent: 4764872 (1988-08-01), Miller
patent: 5330131 (1994-07-01), Burcham et al.
patent: 5337982 (1994-08-01), Sherry
Burcham, Jr. Frank W.
Burken John J.
Beaulieu Yonel
Cuchlinski Jr. William A.
Kusmiss John H.
The United States of America as represented by the Administrator
LandOfFree
Emergency control aircraft system using thrust modulation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Emergency control aircraft system using thrust modulation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Emergency control aircraft system using thrust modulation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-737815