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Abstract:
On account of the backing-up tractor-trailer system with an off-axle connection, a mixed logical dynamics (MLD) approach and a receding horizon control (RHC) method have been addressed respectively for the purpose of modeling and control of such a system. At first, Lyapunov theory was used to analyze the motion characteristics of the tractor-trailer system. Then, MLD approach was proposed to describe the kinematics of the tractor-trailer system. For the resulting MLD model, an extended cost function with quadratic form was addressed. To minimize the tracking error of the trailer, and smooth the behavior of the steering angle, an equivalent linear quadratic tracking problem was presented. In view of this problem, an explicit RHC controller was designed considering a look-ahead path information with finite horizon, by employing the multi-parametric mixed-integer quadratic programming (mp-MIQP) technique. Finally, the controller was evaluated through simulation, achieving a desirable performance, even under the tracking of a non-smooth reference path.
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Journal of University of Science and Technology of China
ISSN: 0253-2778
Year: 2012
Issue: 7
Volume: 42
Page: 517-526
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0