Aeronautics and astronautics – Aircraft control – Pilot operated
Patent
1993-07-21
1995-10-10
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft control
Pilot operated
B64C 1312
Patent
active
054564280
ABSTRACT:
Conventional column controls for aircraft flight control systems are replaced by active sidesticks which are connected to port and starboard aircraft mechanical, electrical or hydraulic systems by means of servo motors and cables. Movement of the active sidestick handles is detected and a signal generated to drive a servo motor in manner corresponding thereto, which in turn will drive cable assemblies which control aircraft flight control surfaces. Two sidesticks are provided, preferably with an electrical cross-cockpit interconnect to cause movement of one sidestick to result in a signal being transmitted to a second sidestick to cause the motor thereof to force the sidestick to track the movement of the first sidestick. In an alternative implementation, the sidesticks are employed in a fly-by-wire system with a conventional cable system as backup. The cable system is disengaged from the sidesticks by means of a disengage clutch whereupon failure of the fly-by-wire system, the clutch will engage the cable system and provide a mechanical backup to the fly-by-wire system in the event of failure thereof.
REFERENCES:
patent: 2958484 (1960-11-01), Ross
patent: 3140843 (1964-07-01), Pettit
patent: 3528633 (1970-09-01), Knemeyer
patent: 3576302 (1971-04-01), Palfreyman
patent: 4122927 (1978-10-01), Berg
patent: 4603388 (1986-07-01), Griffith et al.
patent: 5125602 (1992-06-01), Vauvelle
patent: 5149023 (1992-09-01), Sakurai et al.
patent: 5156363 (1992-10-01), Cizewski et al.
Barefoot Galen L.
Honeywell Inc.
Rendos Thomas A.
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