Brief Variable structure methods in hydraulic servo systems control

Authors:
A. Bonchis;P. I. Corke;D. C. Rye;Q. P. Ha
Affiliations:
CSIRO Manufacturing Science and Technology, P.O. Box 883, Kenmore Qld 4069, Australia;Australian Centre for Field Robotics, The University of Sydney, NSW 2006, Australia;CSIRO Manufacturing Science and Technology, P.O. Box 883, Kenmore Qld 4069, Australia and CSIRO Manufacturing Science and Technology, P.O. Box 883, Kenmore Qld 4069, Australia;CSIRO Manufacturing Science and Technology, P.O. Box 883, Kenmore Qld 4069, Australia and CSIRO Manufacturing Science and Technology, P.O. Box 883, Kenmore Qld 4069, Australia
Venue:
Automatica (Journal of IFAC)
Year:
2001

Citing 1
Cited 2

A survey of models, analysis tools and compensation methods for the control of machines with friction

Automatica (Journal of IFAC)

Sliding Mode Control with Adaptive Fuzzy Dead-Zone Compensation of an Electro-hydraulic Servo-System

Journal of Intelligent and Robotic Systems
Adaptive fuzzy controller with self-tuning fuzzy sliding-mode compensation for position control of an electro-hydraulic displacement-controlled system

Journal of Intelligent & Fuzzy Systems: Applications in Engineering and Technology

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Abstract

In the general framework of hydraulic servo systems, this paper addresses the problem of position control in the presence of important friction nonlinearities. The accent falls on the variable structure methodology, as we try to use its intrinsic robustness properties. Several friction observers, including the one based on a variable structure approach, were incorporated and tested in an acceleration feedback control. Next, we present a novel implementation of a variable structure controller, which lumps friction and load as an external disturbance. Results of extensive experimental testing encourage the use of variable structure methods in a class of highly nonlinear hydraulic servo systems.