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Configuration Flatness of Lagrangian Systems Underactuated by One Control

Rathinam, Muruhan and Murray, Richard M. (1996) Configuration Flatness of Lagrangian Systems Underactuated by One Control. California Institute of Technology . (Unpublished)

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Lagrangian control systems that are differentially flat with flat outputs that only depend on configuration variables are said to be configuration flat. We provide a complete characterisation of configuration flatness for systems with $n$ degrees of freedom and $n-1$ controls whose range of control forces only depends on configuration and whose Lagrangian has the form of kinetic energy minus potential. The method presented allows us to determine if such a system is configuration flat and, if so provides a constructive method for finding all possible configuration flat outputs. Our characterisation relates configuration flatness to Riemannian geometry. We illustrate the method by two examples.

Item Type:Report or Paper (Technical Report)
Murray, Richard M.0000-0002-5785-7481
Group:Control and Dynamical Systems Technical Reports
Record Number:CaltechCDSTR:1996.CIT-CDS-96-006
Persistent URL:
Usage Policy:You are granted permission for individual, educational, research and non-commercial reproduction, distribution, display and performance of this work in any format.
ID Code:28012
Deposited By: Imported from CaltechCDSTR
Deposited On:15 Oct 2002
Last Modified:18 Mar 2015 23:23

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