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Content Provider | IEEE Xplore Digital Library |
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Author | Nguyen, Q.H. Ha, Q.P. Rye, D.C. Durrant-Whyte, H.F. |
Copyright Year | 2000 |
Description | Author affiliation: Centre for Field Robotics, Sydney Univ., NSW, Australia (Nguyen, Q.H.) |
Abstract | Presents the sliding mode axis control of the electrohydraulic servo systems of a robotic excavator. The dynamic systems are described by a comprehensive model that accounts for nonlinearities and friction effects of asymmetric hydraulic cylinders. A sliding mode controller is developed for the electrohydraulic actuator of each working axis to provide stable force tracking. With a proper choice of the reference force, the control law can also allow tracking of a desired piston displacement trajectory. Numerical simulation demonstrates the validity of the proposed technique. Experimental results show good performance and strong robustness in both force and position following. |
Starting Page | 5224 |
Ending Page | 5229 |
File Size | 717899 |
Page Count | 6 |
File Format | |
ISBN | 0780366387 |
ISSN | 01912216 |
DOI | 10.1109/CDC.2001.914787 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2000-12-12 |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Electrohydraulics Robots Sliding mode control Force control Control systems Servomechanisms Friction Actuators Displacement control Pistons |
Content Type | Text |
Resource Type | Article |
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