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NMPC trajectory planner for urban autonomous driving

2021-05-09 22:02:49
Francesco Micheli, Mattia Bersani, Stefano Arrigoni, Francesco Braghin, Federico Cheli
arXiv_RO
     
Abstract

This paper presents a trajectory planner for autonomous driving based on a Nonlinear Model Predictive Control (NMPC) algorithm that accounts for Pacejka's nonlinear lateral tyre dynamics as well as for zero speed conditions through a novel slip angles calculation. In the NMPC framework, road boundaries and obstacles (both static and moving) are taken into account thanks to soft and hard constraints implementation. The numerical solution of the NMPC problem is carried out using ACADO toolkit coupled with the quadratic programming solver qpOASES. The effectiveness of the proposed NMPC trajectory planner has been tested using CarMaker multibody models. Time analysis results provided by the simulations shown, state that the proposed algorithm can be implemented on the real-time control framework of an autonomous vehicle under the assumption of data coming from an upstream estimation block.

Abstract (translated)

URL

https://arxiv.org/abs/2105.04034

PDF

https://arxiv.org/pdf/2105.04034.pdf

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