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Flight control system with alternate control path

  • US 8,935,015 B2
  • Filed: 12/01/2011
  • Issued: 01/13/2015
  • Est. Priority Date: 05/09/2011
  • Status: Active Grant
First Claim
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1. A flight control system comprising:

  • a primary flight control path from one or more pilot controls to control surface actuators on an associated aircraft, wherein the primary control path includes one or more flight control computers and one or more first data concentrators; and

    a secondary flight control path from the one or more pilot controls to the control surface actuators, wherein the secondary flight control path utilizes direct mode control laws to control the control surface actuators;

    wherein the primary control path includes remote electronic units operatively coupled to the one or more data concentrators, and wherein the secondary control path bypasses all remote electronic units, and wherein the primary flight control path and the secondary flight control path are independent from each other over the control paths from the one or more pilot controls to the control surface actuators, and the secondary flight control path is operative upon detection of a fault in the primary flight control path.

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