This paper concerns the flight controller design of aircraft that has significant changes in aerodynamic characteristics and addresses the flight controller design of a quad-tilt-wing unmanned aerial vehicle that has vertical takeoff and landing as well as high-speed cruise capabilities. The quad-tilt-wing unmanned aerial vehicle has a tandem wing that tilts between vertical to horizontal positions. This configuration change significantly alters its aerodynamic characteristics, and therefore requires a gain-scheduled flight controller. The gain-scheduled flight controller, which consists of a gain-scheduled stability augmentation system, a gain-scheduled control augmentation system, and a gain-scheduled turn coordinator, is also required to be robust against modeling errors because the motion dynamics of the quad-tilt-wing unmanned aerial vehicle are inherently unstable at almost all wing tilt angles and the precise aerodynamic characteristics are not available. To this end, this paper proposes a design method for structured gain-scheduled flight controllers by combining a conventional gain-scheduled controller design method and multiple-model approach to satisfy the robustness requirement, and it designs a gain-scheduled flight controller for the quad-tilt-wing unmanned aerial vehicle. The effectiveness of the method is demonstrated by flight tests during which the quad-tilt-wing unmanned aerial vehicle successfully achieved full conversion flight: that is, vertical takeoff, accelerating transition, high-speed cruise, decelerating transition, and vertical landing, as well as super-short takeoff. Presented as Paper 2013-5100 at the AIAA Guidance, Navigation, and Control (GNC) Conference, Boston, MA, 19-22 August 2013


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Flight Controller Design and Demonstration of Quad-Tilt-Wing Unmanned Aerial Vehicle


    Contributors:


    Publication date :

    2015




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    55.54 Flugführung
    Local classification TIB:    770/7040





    Flight Test Verification of Flight Controller for Quad Tilt Wing Unmanned Aerial Vehicle (AIAA 2013-5100)

    Sato, M. / Muraoka, K. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2013



    Quad-rotor unmanned aerial vehicle with foldable wing auxiliary flight mechanisms

    HE YUQING / MA LIXIN / YANG LIYING et al. | European Patent Office | 2021

    Free access