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Fly by wire/fly by light control system with manual override

  • US 5,255,880 A
  • Filed: 07/13/1992
  • Issued: 10/26/1993
  • Est. Priority Date: 02/08/1991
  • Status: Expired due to Fees
First Claim
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1. An improved flight control system comprising:

  • a yoke for controlling an aircraft control surface,an autopilot computer for generating autopilot command signals to operate control surfaces on an aircraft;

    means for sensing the orientation of the yoke in an aircraft cockpit and generating an electronic yoke orientation signal which corresponds to the yoke orientation;

    signal line means, coupled with the autopilot computer and sensing means, for transmitting the command signals and the orientation signals;

    means for comparing the autopilot command signal and the yoke orientation signal and modifying without regeneration the autopilot command signal depending on a result of the comparing of the autopilot command signal and the yoke orientation signal, andmeans for providing the modified signal to a surface command servo for controlling an aircraft control surface, without using a switch to turn off the autopilot command signals.

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