Comparison study of position control with 2-way and 3-way high speed on/off electrohydraulic valves

Greg Richard Long, Purdue University

Abstract

A comparative study of system-level performance is given for on/off valve control of a hydraulic cylinder at low operating pressures. A simulation model was developed to create and tune controllers that are specific to the hydraulic configuration. Cylinder position control was investigated using a configuration consisting of two 3-way on/off valves and a configuration with four 2-way on/off valves. Controllers developed utilize configuration advantages and minimize the influence of the on/off valve performance on the cylinder position responses. It was determined that successful performance to sine wave and step inputs can be achieved with the control theories presented.

Degree

M.S.E.

Advisors

Lumkes, Purdue University.

Subject Area

Mechanical engineering

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