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Lyapunov-based two-dimensional cruise control of autonomous vehicles on lane-free roads

Karafyllis, Iasson, Theodosis Dionysios, Papageorgiou Markos

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Year 2021
Type of Item Conference Full Paper
Bibliographic Citation I. Karafyllis, D. Theodosis and M. Papageorgiou, "Lyapunov-based two-dimensional cruise control of autonomous vehicles on lane-free roads," in 60th IEEE Conference on Decision and Control (CDC 2021), 2021, pp. 2683-2689, doi: 10.1109/CDC45484.2021.9682975.
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In this paper, we design decentralized control strategies for the two-dimensional movement of autonomous vehicles on lane-free roads. The bicycle kinematic model is used to model the dynamics of the vehicles, and each vehicle determines its control input based only on its own speed and on the distance from other (adjacent) vehicles and the boundary of the road. Potential functions and Barbălat’s lemma are employed to prove the following properties, which are ensured by the proposed controller: (i) the vehicles do not collide with each other or with the boundary of the road; (ii) the speeds of all vehicles are always positive, i.e., no vehicle moves backwards at any time; (iii) the speed of all vehicles remain below a given speed limit; (iv) all vehicle speeds converge to a given longitudinal speed set-point; and (v) the accelerations, lateral speeds, and orientations of all vehicles tend to zero. The efficiency of the proposed 2-D cruise controllers is illustrated by means of numerical examples.

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