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COMBINED PITCH AND FORWARD THRUST CONTROL FOR UNMANNED AIRCRAFT SYSTEMS

  • US 20170300067A1
  • Filed: 04/18/2016
  • Published: 10/19/2017
  • Est. Priority Date: 04/18/2016
  • Status: Active Grant
First Claim
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1. An unmanned aircraft, comprising:

  • a forward propulsion system comprising a forward thrust engine and a first rotor coupled to the forward thrust engine;

    a vertical propulsion system comprising a vertical thrust engine and a second rotor coupled to the vertical thrust engine;

    a pitch angle and throttle control system, comprising;

    a controller comprising an input coupled to receive a velocity signal indicating a determined amount of forward velocity and being configured to generate a pitch angle command associated with the determined amount of forward velocity;

    a splitting block comprising an input to receive the pitch angle command and being configured to generate a second pitch angle command and a forward thrust engine throttle command based on a bounded pitch angle for the aircraft;

    an output coupled to provide the second pitch angle command to the vertical propulsion system and the forward thrust engine throttle command to the forward propulsion system.

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