The use of digital hydraulic to the position control of hydraulic cylinder

• Autorzy: Kucybała P. , Sobczyk A.

Identyfikatory

DOI

10.5604/12314005.1216524

• Języki publikacji: EN

Abstrakty

EN

The article presents the method of controlling the position of the hydraulic cylinder using hydraulic valves on/off with an appropriate strategy for digital control. Main elements of the hydraulic system under consideration include a group of electromagnetic hydraulic valves and hydraulic cylinder single acting. The control system was implemented in the environment of the real-time system based on MATLAB/Simulink. The digital control strategy is based on a fast enough on and off switching valves causing corresponding motion of the cylinder to the required position. This article presents the advantages and disadvantages of this type of control about the system with the proportional control system. The accuracy of this kind of control depends on the structure, properties of the valves or their static and dynamic characteristics. The results of analysis of the control system have the possibility of controlling the positioning hydraulic cylinder with a rather high accuracy, which can be used in place of proportional control systems. The use of digital control system allows, under certain conditions to obtain cost savings related to a reduction in energy consumption, to get a much better adaptation to variable control systems. This concept is an interesting alternative for the conventional control system and provides opportunities for application in systems, where conventional control is very expensive e.g. water hydraulics or to the clear systems where the use of hydraulic proportional technique is not necessarily, but depends on the user to the possibility of obtaining good quality control at a relatively low cost.

Słowa kluczowe

EN

fluid power control system; hydrostatic transmission system; digital hydraulics

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2016
• Tom: Vol. 23, No. 3
• Strony: 297--302
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Kucybała P.

• Cracow University of Technology, Institute of Machine Design Jana Pawła II Avenue 37, 31-864 Krakow, Poland tel.: [phone]

autor

Sobczyk A.

• Cracow University of Technology, Institute of Machine Design Jana Pawła II Avenue 37, 31-864 Krakow, Poland tel.: [phone]

Bibliografia

• [1] Chwastek, S., Pobędza, J., Sobczyk, A., Właściwości mechatronicznego układu sterowania z zastosowaniem wody jako cieczy roboczej w układzie wykonawczym manipulatora, Hydraulika i Pneumatyka, No. 6, pp. 49-51, 2002.
• [2] Flor, M., Scheller, S., Heidenfelder, R., Digital Hydraulics at Bosch Rexroth – A trend evolves to real applications, The fifth workshop on digital fluid power, Tampere, Finland 2012.
• [3] Kucybała, P., Sobczyk, A., The control system for manipulator with two degrees of freedom for water hydrostatic transmission drive, Journal of KONES Powertrain and Transport, Vol. 22, No. 3, 2015.
• [4] Linjama, M., Koskinen, T., Vilenius, M., Accurate trajectory tracking control of water hydraulic cylinder with non-ideal on/off valves, International Journal of Fluid Power, No. 1, 2003.
• [5] Linjama, M., Vilenius, M., Improved digital hydraulic tracking control of water hydraulic cylinder drive, International Journal of Fluid Power, No. 1, 2005.
• [6] Markowski, M., Elektrohydrauliczne układy „EFM” sterujące osprzętem maszyn budowlanych, Hydraulika i Pneumatyka, 2, 2008.
• [7] Michałowski, S., Skibniewski, M., Sobczyk., A., Predictive Control Systems in Construction Equipment, proc. of IFAC 18th International Symposium on Automation and robotics in Construction, pp. 277-282.
• [8] Scheidl, R., Linjama, M., Schmid, S., Is the future of fluid power digital? Journal of Systems and Control Engineering, 226(6), pp. 721-723, 2012.
• [9] Sobczyk, A., Improvement of hydraulic system efficiency by means of energy recuperation, Politechnika Krakowska, Monografia 403, Krakow 2011.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.