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TECHNICAL PAPERS

Robust Nonlinear Control of a Novel Indexing Valve Plate Pump: Simulation Studies

[+] Author and Article Information
X. Zhang, S. S. Nair, N. D. Manring

Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211

J. Dyn. Sys., Meas., Control 124(4), 613-616 (Dec 16, 2002) (4 pages) doi:10.1115/1.1514668 History: Revised May 01, 2001; Revised February 01, 2002; Online December 16, 2002
Copyright © 2002 by ASME
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References

Manring, N. D., 1996, “Displacement Control for a Variable Displacement Axial Piston Pump,” U.S. Patent 5,564,905, Oct. 15, 1996.
Cho, J., Zhang, X., Manring, N. D., and Nair, S. S., 1999, “Dynamic Modeling of an Indexing Valve Plate Pump,” Fluid Power Systems Technology Sessions, ASME International Mechanical Engineering Congress and Exposition, Nashville, TN, pp. 17–24.
Zhang, X., Cho, J., Nair S. S., and Manring, N. D., 2000, “Reduced Order Modeling of the Dynamics of an Indexing Valve Plate Pump,” Proc. of American Control Conf., Chicago, IL, pp. 3595–3599.
Manring,  N. D., and Johnson,  R., 1996, “Modeling and Designing a Variable-Displacement Open-Loop Pump,” ASME J. Dyn. Syst., Meas., Control, 118, pp. 267–271.
Zhang, X., Cho, J., Nair, S. S., and Manring, N. D., 2000, “Feed Forward Plus Feedback Control of an Indexing Valve Plate Pump,” Proc. of Fluid Power Systems Technology Division, ASME International Mechanical Engineering Congress and Exposition, Orlando, FL, pp. 23–29.
Lin,  S. J., and Akers,  A., 1990, “Optimal Control Theory Applied to Pressure-Controlled Axial Piston Pump Design,” ASME J. Dyn. Syst., Meas., Control, 112(3), pp. 475–481.
Zhang,  X., Cho,  J., Nair,  S. S., and Manring,  N. D., 2000, “Damping on the Swash Plate of an Axial Piston Pump,” ASME J. Dyn. Syst., Meas., Control, 123(3), pp. 463–470.
Du,  H., and Nair,  S. S., 1998, “Learning Control Design for a Class of Nonlinear Systems,” Engineering Applications of Artificial Intelligence, 11, pp. 495–505.

Figures

Grahic Jump Location
Indexing pump and proposed control scheme
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Swash plate angle tracking response before and after learning with both δ and Au controls ([[dashed_line]] desired; –actual) a) Before learning; and b) After learning
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Pressure tracking response ([[dashed_line]] desired; –actual) a) at the initiation of learning; and b) at the end of learning
Grahic Jump Location
Tracking performance comparison-full nonlinear model with/without learning network compensation ([[dashed_line]] desired trajectory or disturbance; –actual trajectory with learning network; - - - actual trajectory without learning network): a) Pressure tracking with the learned network; b) Swash plate following disturbance signal; and c) Control effort—valve plate angle δ

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