Abstract

This paper is concerned with position control of asymmetric hydraulic cylinder system. The hydraulic system consists of an asymmetric hydraulic cylinder with two chambers connected by an orifice, a two-position, two-way proportional valve and a load force. The system structure and the control principle were introduced in this paper. The influence of some structural parameters on the system dynamic performance was analyzed. The analysis and simulation results indicate that a two-position, two-way proportional valve can achieve position control of the asymmetric hydraulic cylinder system. A good dynamic performance can be achieved after using the control strategy proposed by this paper.

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