In: Proceedings of the 36th Chinese Control Conference, pp. Lin, H.X., Fu, R., Zeng, J.P.: Extended state observer based sliding mode control for a tilt rotor UAV. Yu, S., Yu, X., Shirinzadeh, B., Man, Z.: Continuous finite-time control for robotic manipulators with terminal sliding mode. Zhou, H.B., Song, H.M., Liu, H.K.: Nonsingular terminal sliding mode guidance law with impact angle constraint. Acta Aeronautica et Astronautica Sinica 39(7), 121900 (2018) Lu, L.H., Fu, R., Wang, Y., et al.: Mode conversion of electric tilt rotor aircraft based on corrected generalized corridor. In: Proceedings of the IEEE International Conference on Control Applications, pp. Rysdyk, R.T., Calise, A.J.: Adaptive nonlinear control for tiltrotor aircraft. Rysdyk, R.T., Calise, A.J.: Adaptive model inversion flight control for tilt-rotor aircraft. 29(1), 30–33 (2011)Ĭhen, Q., Jiang, T., Shi, F.M.: Longitudinal attitude control for a tilt tri-rotor UAV in transition mode. 22(3), 250–256 (2009)Ĭhen, Y., Gong, H.J., Wang, B.: Research on longitudinal attitude control technology of tilt rotor during transition. Song, Y.G., Wang, H.J.: Design of flight control system for a small unmanned tilt rotor aircraft. 38(6), 1071–1082 (2014)Ĭai, X.H., Fu, R., Zeng, J.P.: Robust H∞ gain-scheduling control for mode conversion of tilt rotor aircrafts.  Sato, M., Muraoka, K.: Flight controller design and demonstration of quad-tilt-wing unmanned aerial vehicle. In: ICAS 2010, 27th Congress of International Council of the Aeronautical Sciences (2010)įu, R., Sun, H.F., Zeng, J.P.: Exponential stabilisation of nonlinear parameter-varying systems with applications to conversion flight control of a tilt rotor aircraft.  Aircraft 46(4), 1231–1239 (2009)Īhn, O., Kim, J.M., Lim, C.H.: Smart UAV research program status update: achievement of tilt-rotor technology development and vision ahead. Yeo, H., Johnson, W.: Performance and design investigation of heavy lift tilt-rotor with aerodynamic interference effects. Hirschberg, M.J.: An overview of the history of vertical and/or short take-off and landing (V/STOL) Aircraft. Regardless of disturbances, the aircraft can achieve the mode transition safely and smoothly. Finally, a numerical example is given to verify the effectiveness and robustness of the proposed approach. Moreover, ESOs are provided to enhance the robustness of the system for uncertainties. To adapt to complex aerodynamic characteristics and maneuvering characteristics, and the vibrational control structure in different part of the transition mode, a nonsingular terminal sliding mode control method is applied to make the states converge to the reference trajectories in finite time. Due to the velocity and structure of tilt rotor UAV vary significantly with the variation of tilt angle, the transition mode is divided into two parts. A controller design method using nonsingular terminal sliding mode surface and extended state observers (ESOs) is proposed. This paper focuses on the finite time convergence problem of system states in the course of the transition flight control for a small tilt rotor unmanned aerial vehicle (UAV).

Tilt rotor flight control system

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