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Modeling and Robust Controller Design of a Swash Plate for Swash Plate Type Variable Displacement Axial Piston Pump  

Park, Sung-Hwan (Department of Mechanical Engineering, Pusan Nat'l Univ.)
Park, Yong-Ho (Devision of Mechatronics, Koje College)
Lee, Ji-Min (Department of Mechanical Engineering, Pusan Nat'l Univ.)
Kim, Jong-Shik (Department of Mechanical Engineering, Pusan Nat'l Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.25, no.12, 2008 , pp. 75-81 More about this Journal
Abstract
A robust controller is proposed for regulating effectively the pressure of control cylinder of swash plate type variable displacement axial piston pump. In order to design a precise and robust pressure control system, a mathematical model for swash plate control system is identified by the signal compression method. Based on the identified mathematical model, an $H_{\infty}$ robust swash plate controller is designed which is robust to the variation of the load pressure. The precise and robust swash plate control characteristics are verified by experiments.
Keywords
Plate Type Variable Displacement Axial Piston Pump; Direct Drive Valve; Pressure Control; $H_{\infty}$ Control;
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