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C34

M. Ryll, H. H. Bülthoff, P. Robuffo Giordano. Modeling and Control of a Quadrotor UAV with Tilting Propellers. In IEEE Int. Conf. on Robotics and Automation, Pages 4606-4613, St. Paul, MN, May 2012.

Abstract

Standard quadrotor UAVs possess a limited mobility because of their inherent underactuation, i.e., availability of 4 independent control inputs (the 4 propeller spinning velocities) vs. the 6 dofs parameterizing the quadrotor position/ orientation in space. As a consequence, the quadrotor pose cannot track an arbitrary trajectory over time (e.g., it can hover on the spot only when horizontal). In this paper, we propose a novel actuation concept in which the quadrotor propellers are allowed to tilt about their axes w.r.t. the main quadrotor body. This introduces an additional set of 4 control inputs which provides full actuation to the quadrotor position/orientation. After deriving the dynamical model of the proposed quadrotor, we formally discuss its controllability properties and propose a nonlinear trajectory tracking controller based on dynamic feedback linearization techniques. The soundness of our approach is validated by means of simulation results

BibTex Reference

@InProceedings{C34,
   Author = {Ryll, M. and H. Bülthoff, H. and Robuffo Giordano, P.},
   Title = {{Modeling and Control of a Quadrotor UAV with Tilting Propellers}},
   BookTitle = {IEEE Int. Conf. on Robotics and Automation},
   Pages = {4606--4613},
   Address = {St. Paul, MN},
   Month = {May},
   Year = {2012}
}

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