Cross coupled iterative learning control of dissimilar dynamical systems

Kira Barton, David Hoelzle, Andrew Alleyne, Amy Wagoner Johnson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Cross Coupled Iterative Learning Control (CCILC) has previously been applied to contour tracking problems with planar robots in which both axes can be characterized as similar systems; having similar dynamics and identical hardware. However, there are many repetitive applications in which dissimilar systems cooperate to pursue a primary performance objective. This paper introduces a novel framework to couple dissimilar systems while applying Iterative Learning Control (ILC), showing the ability to noncausally compensate for a slow system with a fast system. In this framework, performance requirements for a primary objective can more readily be achieved by emphasizing an underutilized fast system instead of straining a less-capable slow system. The controller is applied in simulation and experimentally to a micro-Robotic Deposition (μRD) manufacturing system to coordinate a slow extrusion system axis and a fast positioning system axis to pursue the primary performance objective, dimensional accuracy of a fabricated part. Experimental results show a 30% improvement in fabrication dimensional accuracy with only marginal changes in actuator effort in the slow system, as compared to independently controlled axes.

Original languageEnglish (US)
Title of host publicationProceedings of the ASME Dynamic Systems and Control Conference 2009, DSCC2009
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages757-764
Number of pages8
EditionPART A
ISBN (Print)9780791848920
DOIs
StatePublished - Jan 1 2010
Event2009 ASME Dynamic Systems and Control Conference, DSCC2009 - Hollywood, CA, United States
Duration: Oct 12 2009Oct 14 2009

Publication series

NameProceedings of the ASME Dynamic Systems and Control Conference 2009, DSCC2009
NumberPART A

Other

Other2009 ASME Dynamic Systems and Control Conference, DSCC2009
CountryUnited States
CityHollywood, CA
Period10/12/0910/14/09

ASJC Scopus subject areas

  • Control and Systems Engineering

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    Barton, K., Hoelzle, D., Alleyne, A., & Johnson, A. W. (2010). Cross coupled iterative learning control of dissimilar dynamical systems. In Proceedings of the ASME Dynamic Systems and Control Conference 2009, DSCC2009 (PART A ed., pp. 757-764). (Proceedings of the ASME Dynamic Systems and Control Conference 2009, DSCC2009; No. PART A). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/DSCC2009-2727