Extended Look-Ahead Tracking Controller with Orientation-Error Observer for Vehicle Platooning

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Abstract

This paper presents a novel extended look-ahead concept of an integrated lateral and longitudinal vehicle following controller with an orientation-error observer. The control law is based on input-output feedback to address a local tracking problem. It is known that due to the position control in the look-ahead approach, the follower vehicle may cut corners. To address this problem, a reference-induced extended look-ahead tracking point is introduced such that the cutting-corner is compensated. Moreover, the stability of the internal dynamics is analyzed. To address the situation where the orientation tracking error is not measurable or corrupted by noise, an orientation-error observer, constructed from the position tracking error, is designed. The performance of the extended look-ahead controller and the orientation-error observer is investigated by means of a simulation study, and validated with experiments on a mobile robot platform.

Original languageEnglish
Article number8878003
Pages (from-to)4808-4821
Number of pages14
JournalIEEE Transactions on Intelligent Transportation Systems
Volume21
Issue number11
DOIs
Publication statusPublished - Nov 2020

Keywords

  • cascaded system
  • Control algorithm
  • longitudinal and lateral control
  • observer
  • vehicle platooning

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