A PD path-tracking controller plus inner velocity loops for a wheeled mobile robot

Victor M. Hernández-Guzmán, Ramón Silva-Ortigoza, Celso Márquez-Sánchez

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

In this paper, we present a controller to solve the path-tracking task in a wheeled mobile robot. We show that a linear PD controller, driven by the tracking error, can be used to generate the desired profiles to be tracked by the motor velocities by means of two linear inner proportional-integral loops. We formally prove that an ultimate bound exists which can be rendered small by a suitable selection of the controller gains. This is the first time that such a result is presented in the literature when considering, simultaneously, both the kinematic and the dynamic models of the wheeled mobile robot.

Original languageEnglish
Pages (from-to)1015-1029
Number of pages15
JournalAdvanced Robotics
Volume29
Issue number16
DOIs
StatePublished - 18 Aug 2015

Keywords

  • Lyapunov stability
  • PD control
  • path tracking
  • ultimate bound
  • wheeled mobile robots

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