Browsing by Subject "motion synchronization"

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Access status: Open Access ,
Control system of the hydraulic cylinders motion synchronization with the controllers designed on the basis of the direct Lapunov's method
(Wydawnictwa AGH, 2009) Grzybek, Dariusz
The following article deals with the subject of control of the hydraulic cylinders motion synchronization. The subject of the paper is the analysis of throttling-controlled motion synchronization system in the range of potential control algorithms. The main aim was to elaboration and research of the control system of n (where n = 2) hydraulic valves with a view to ensuring the highest possible efficiency of cylinders motion synchronization. The elaborated control system enables effective motion synchronization of n hydraulic cylinders with a view to ensuring a system stability. In the suggested control system controllers designed on the basis of the direct Lapunov's method were used. The number of control systems is equal to the number of the synchronized cylinders.
Access status: Open Access ,
Control system of the hydraulic cylinders synchronization with the use of arithmetic mean of their positions
(2010) Grzybek, Dariusz; Micek, Piotr Andrzej
The aim of the control system is to ensure the effective synchronization of the cylinders motion and simultaneous minimization of volume loss in the throttling hydraulic systems. In the proposed control system, arithmetic mean of the synchronized cylinders displacements is the command value to the control subsystems where identical controllers are used. The number of the control subsystems is equal to the number of the synchronized cylinders. Developed control system enables effective motion synchronization of arbitrary number of the hydraulic cylinders with the pressure of the working liquid resulting from the current cylinders load.