Guaranteeing persistent feasibility of model predictive motion planning for autonomous vehicles
Paper i proceeding, 2017

Model predictive control (MFC) approach is prone to loss of feasibility due to the limited prediction horizon for decision making. For autonomous vehicle motion planning, many of detected obstacles, which are beyond the prediction horizon, cannot be considered in the instantaneous decisions, and late consideration of them may cause infeasibility. The conditions that guarantee persistent feasibility of a model predictive motion planning scheme are studied in this paper. Maintaining the systems states in a control invariant set of the system guarantees the persistent feasibility of the corresponding MPC scheme. Therefore, the persistent feasibility concern can be expressed as the problem of computing an effective control invariant set of the system and maintaining the system states inside it. In this paper, two approaches are presented to compute control invariant sets for the motion planning problem, the linearization-convexification approach and the brute-force search approach. The control invariant sets calculated via these two approaches are numerically analyzed and compared.

Författare

M. Jalalmaab

University of Waterloo

B. Fidan

University of Waterloo

S. Jeon

University of Waterloo

Paolo Falcone

Chalmers, Signaler och system, System- och reglerteknik, Mekatronik

28th IEEE Intelligent Vehicles Symposium, IV 2017, Redondo Beach, United States, 11-14 June 2017

843-848

Ämneskategorier

Robotteknik och automation

DOI

10.1109/IVS.2017.7995821

ISBN

978-1-5090-4804-5

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Senast uppdaterat

2018-03-16