Spline path following for redundant mechanical systems

Rajan J. Gill, Dana Kulic, Christopher Nielsen

Research output: Contribution to journalArticleResearchpeer-review

12 Citations (Scopus)

Abstract

Path following controllers make the output of a control system approach and traverse a prespecified path with no a priori time-parametrization. In this paper, we present a method for path following control design applicable to framed curves generated by splines in the workspace of kinematically redundant mechanical systems. The class of admissible paths includes self-intersecting curves. Kinematic redundancies are resolved by designing controllers that solve a suitably defined constrained quadratic optimization problem. By employing partial feedback linearization, the proposed path following controllers have a clear physical meaning. The approach is experimentally verified on a four-degree-of-freedom (four-DOF) manipulator with a combination of revolute and linear actuated links and significant model uncertainty.

Original languageEnglish
Article number7327205
Pages (from-to)1378-1392
Number of pages15
JournalIEEE Transactions on Robotics
Volume31
Issue number6
DOIs
Publication statusPublished - 1 Dec 2015
Externally publishedYes

Keywords

  • Path following
  • Redundant feedback linearization
  • Set stabilization

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