Optimal motion planning for differentially flat systems using bernstein approximation

Venanzio Cichella, Isaac Kaminer, Claire Walton, Naira Hovakimyan

Research output: Contribution to journalArticle

Abstract

This letter presents a computational framework to efficiently generate feasible and optimal trajectories for differentially flat autonomous vehicle systems. We formulate the optimal motion planning problem as a continuous-time optimal control problem, and approximate it by a discrete-time formulation using Bernstein polynomials. These polynomials allow for efficient computation of various constraints along the entire trajectory, and are particularly convenient for generating trajectories for safe operation of multiple vehicles in complex environments. The advantages of the proposed method are investigated through theoretical analysis and numerical examples.

Original languageEnglish (US)
Pages (from-to)181-186
Number of pages6
JournalIEEE Control Systems Letters
Volume2
Issue number1
DOIs
StatePublished - Jan 2018

Keywords

  • Autonomous vehicles
  • Bernstein polynomial
  • Bézier curves
  • Discrete approximation
  • Optimal motion planning

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Control and Optimization

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