The Robotics Institute

Carnegie Mellon Robotics Institute

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Abstract

We present a new approach to developing hybrid feedback policies for the control of systems with nonholonomic constraints. We extend the idea of sequential composition and use it to to switch between controllers in a state based manner, resulting in a globally convergent, pure feedback policy. Individual controllers in the palette are inspired by variable constraint control. We solve a vision guided unicycle navigation problem and verify the result through simulation and experiment. This technical report presents a detailed description of results published in [10].

Keywords

hybrid control, visual servoing, nonholonomic constraints, underactuated systems

Notes

Sponsor: DARPA/ONR

Grant ID: N000149810747

Associated Lab(s) / Group(s): Microdynamic Systems Laboratory

Associated Project(s): RHex Robot

Text Reference

George A. Kantor and Alfred Rizzi, "Sequential Composition for Control of Underactuated Systems," tech. report CMU-RI-TR-03-23, Robotics Institute, Carnegie Mellon University, December, 2003

BibTeX Reference

@techreport{Kantor_2003_4554,
   author = "George A Kantor and Alfred Rizzi",
   title = "Sequential Composition for Control of Underactuated Systems",
   booktitle = "",
   institution = "Robotics Institute",
   month = "December",
   year = "2003",
   number= "CMU-RI-TR-03-23",
   address= "Pittsburgh, PA",
}

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