Electric command spoiler system
AssigneeThe Boeing Company
InventorsHenning Buus, Thomas D. MacFie, Odd Justad
Life of this patent
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Abstract
An aircraft spoiler control system wherein each of a plurality of spoilers is driven by an electrically responsive actuator. Sense signals representative of the aircraft's control wheel rotation, speedbrake lever deflection, flap position and air/ground status are processed by logic which produces a corresponding control signal for each actuator. Fault detection circuitry switches in a back-up actuator control signal if a fault occurs in the active control circuit.
Claims7
An electric command spoiler system for use in aircraft wherein a plurality of spoilers are deployed for both aircraft roll and speedbrake operation, the system comprising:
- a plurality of electrically responsive spoiler actuator means, each actuator means responding to a control signal to actuate an associated spoiler to a predetermined deflection between its fully retracted and fully deployed positions;
- roll command means for producing a roll command signal representative of commanded roll;
- speedbrake command means for producing a speedbrake command signal representative of a commanded speedbrake condition;
- flap position transducer means for producing a signal representative of the aircraft's flap position;
- and
- logic control means responsive to said roll and speedbrake command signals and said flap position transducer produced signal for producing at least two unique predetermined actuator command signals, said logic control means including means for coupling each of said unique actuator command signals to at least a predetermined one of said spoiler actuators such that differing spoiler deflections are produced.
Dependencies are inferred from the claim text.