A Global Strategy for Tailsitter Hover Control

Chapter
Part of the Springer Proceedings in Advanced Robotics book series (SPAR, volume 2)

Abstract

We present a nonlinear hover controller for a small flying wing tailsitter vehicle, which enables recovering to hover from a large set of initial conditions. The proposed attitude control law is obtained by solving an optimal control problem, with the objective of correcting large attitude errors by turning primarily around the vehicle’s strongly actuated axis. Solutions for a set of initial attitudes are precomputed and stored in a lookup table. For each controller update, the optimal inputs are read from this table, and applied to the system in an MPC-like manner. Simulation results indicate that this control method is able to perform recoveries to hover from any initial attitude, given that the initial velocity of the vehicle is below a certain limit. Further, the performance of the control strategy is demonstrated on a small tailsitter vehicle in the ETH Zurich Flying Machine Arena.

References

  1. 1.
    Filippone, A.: Flight Performance of Fixed and Rotary Wing Aircraft. Elsevier, Oxford (2006)Google Scholar
  2. 2.
    Deckert, W.H., Franklin, J.A.: Powered-lift aircraft technology. Technical report, NASA (1989)Google Scholar
  3. 3.
    Campbell, J.P.: Research on VTOL and STOL aircraft in the United States. In: Proceedings of the First International Congress in the Aeronautical Sciences, Advances in Aeronautical Sciences, Madrid, 8–13 September, 1958, vol. 2. Pergamon Press (1959)Google Scholar
  4. 4.
    Woods, R.J.: Convertiplanes and Other VTOL Aircraft. Technical report, SAE Technical paper (1957)Google Scholar
  5. 5.
    Wernicke, K.G.: Tilt Prop-rotor Composite Research Aircraft. Technical report, DTIC Document (1968)Google Scholar
  6. 6.
    Lichten, R.L.: Some Aspects of Convertible Aircraft Design. J. Aeronaut. Sci. (Inst. Aeronaut. Sci.), 16(10) (2012)Google Scholar
  7. 7.
    Stuart, J.: TiltWing Propelloplane Potentialities. J. Am. Helicopter Soc., 4(1) (1959)Google Scholar
  8. 8.
    Tosti, L.P.: Flight Investigation of the Stability and Control Characteristics of a 1/4-Scale Model of a Tilt-Wing Vertical-Take-Off-and-Landing Aircraft. Technical report, NASA (1959)Google Scholar
  9. 9.
    Sinha, P., Esden-Tempski, P., Forrette, C.A., Gibboney, J.K., Horn, G.M.: Versatile, modular, extensible VTOL aerial platform with autonomous flight mode transitions. In: IEEE Aerospace Conference. IEEE (2012)Google Scholar
  10. 10.
    Powers, C., Mellinger, D., Kumar, V.: Quadrotor kinematics and dynamics. In: Handbook of Unmanned Aerial Vehicles. Springer, Heidelberg (2014)Google Scholar
  11. 11.
    Sujit, P., Saripalli, S., Sousa, J.B.: Unmanned aerial vehicle path following: a survey and analysis of algorithms for fixed-wing unmanned aerial vehicles. IEEE Control Syst., 34(1) (2014)Google Scholar
  12. 12.
    Knoebel, N.B., McLain, T.W.: Adaptive quaternion control of a miniature tailsitter UAV. In: American Control Conference (ACC). IEEE (2008)Google Scholar
  13. 13.
    Johnson, E N., Wu, A., Neidhoefer, J.C., Kannan, S.K., Turbe, M.A.: Flight-test results of autonomous airplane transitions between steady-level and hovering flight. J. Guidance Control Dyn., 31(2) (2008)Google Scholar
  14. 14.
    Kita, K., Konno, A., Uchiyama, M.: Transition between level flight and hovering of a tail-sitter vertical takeoff and landing aerial robot. Adv. Robot., 24(5–6) (2010)Google Scholar
  15. 15.
    Matsumoto, T., Kita, K., Suzuki, R., Oosedo, A., Go, Hoshino, K.Y., Konno, A., Uchiyama, M.: A hovering control strategy for a tail-sitter VTOL UAV that increases stability against large disturbance. In: IEEE International Conference on Robotics and Automation (ICRA). IEEE (2010)Google Scholar
  16. 16.
    Beach, J.M., Argyle, M.E., McLain, T.W., Beard, R.W., Morris, S.: Tailsitter attitude control using resolved tilt-twist. In: International Conference on Unmanned Aircraft Systems (ICUAS). IEEE (2014)Google Scholar
  17. 17.
    Jung, Y., Cho, S., Shim, D.H.: A comprehensive flight control design and experiment of a Tail-Sitter UAV. In: AIAA Guidance, Navigation, and Control Conference (GNC) (2013)Google Scholar
  18. 18.
    Camacho, E.F., Alba, C.B.: Model predictive control. Springer Science & Business Media, Heidelberg (2013)Google Scholar
  19. 19.
    Anderson, P., Stone, H.: Predictive guidance and control for a tail-sitting unmanned aerial vehicle. In: Information, Decision and Control (IDC). IEEE (2007)Google Scholar
  20. 20.
    Stone, R.H.: Aerodynamic modeling of the wing-propeller interaction for a tail-sitter unmanned air vehicle. J. Aircr., 45(1) (2008)Google Scholar
  21. 21.
    Erickson, G.E.: High angle-of-attack aerodynamics. Annu. Rev. Fluid Mech., 27(1) (1995)Google Scholar
  22. 22.
    Knoebel, N.B., Osborne, S.R., Snyder, D.O., McLain, T.W., Beard, R.W., Eldredge, A.M.: Preliminary modeling, control, and trajectory design for miniature autonomous tailsitters. In: AIAA Guidance, Navigation, and Control Conference (GNC) (2006)Google Scholar
  23. 23.
    J. Diebel, Representing attitude: Euler angles, unit quaternions, and rotation vectors, Stanford University, Tech. Rep., 2006Google Scholar
  24. 24.
    W. Johnson, Helicopter theory. Courier Corporation, 2012Google Scholar
  25. 25.
    P. H. Zipfel, Modeling and Simulation of Aerospace Vehicle Dynamics (AIAA Education). American Institute of Aeronautics & Astronautics, 2003Google Scholar
  26. 26.
    S. Lupashin, M. Hehn, M. W. Mueller, A. P. Schoellig, M. Sherback, and R. D’Andrea, A platform for aerial robotics research and demonstration: The Flying Machine Arena, Mechatronics, 24(1), pp. 41–54, 2014Google Scholar
  27. 27.
    H. P. Geering, Optimal Control with Engineering Applications. Springer, 2007Google Scholar
  28. 28.
    The MathWorks Inc., Matlab R2012a (7.14.0.739), 2012Google Scholar
  29. 29.
    PX4 FMU. http://www.pixhawk.ethz.ch/px4/modules/px4fmu (2017). Accessed 27 Jan 2017
  30. 30.
    SimonK - Open Source Firmware for ATmega-based Brushless ESCs. https://github.com/sim-/tgy(2015) accessed 27 April 2015

Copyright information

© Springer International Publishing AG 2018

Authors and Affiliations

  1. 1.Institute for Dynamic Systems and ControlETH ZürichZürichSwitzerland

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