Article | Proceedings of 15:th Scandinavian International Conference on Fluid Power, June 7-9, 2017, Linköping, Sweden | Optimal Control for Hydraulic System with Separate Meter-In and Separate Meter-Out
Göm menyn

Title:
Optimal Control for Hydraulic System with Separate Meter-In and Separate Meter-Out
Author:
Gerhard Rath: University of Leoben, Chair of Automation, Leoben, Austria Emil Zaev: SS. Cyril and Methodius University of Skopje, Faculty of Mechanical Engineering, Automation Department, Skopje, Macedonia
DOI:
10.3384/ecp17144125
Download:
Full text (pdf)
Year:
2017
Conference:
Proceedings of 15:th Scandinavian International Conference on Fluid Power, June 7-9, 2017, Linköping, Sweden
Issue:
144
Article no.:
012
Pages:
125-134
No. of pages:
10
Publication type:
Abstract and Fulltext
Published:
2017-12-20
ISBN:
978-91-7685-369-6
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press, Linköpings universitet


Export in BibTex, RIS or text

Individual meter-in and meter-out proportional control of hydraulic cylinders allow more flexible strategies how to handle a payload while optimising certain aspects of the motion. An optimal control approach based on the Hamiltonian is used to plan a motion path for a separate meter-in and separate meter-out system. One goal is to avoid oscillations at the end of the motion in the sense of active vibration damping. With the mathematical model presented, it is possible to include the cylinder pressures into the optimisation goals. Not only the the final values for position and speed of the load can be acquired, but also desired values for the pressures at the end of the motion. Maintaining a minimum pressure level is important in order to avoid cavitation and to keep the stiffness of the system. The course of the pressures follows from the design of the motion and will reach the desired values in an open loop control. In order to estimate the computing effort, the algorithm was tested on three platforms. One of those is an ARM-based hardware that represents the computing power of modern embedded systems, to demonstrate that an implementation on such system is possible. Several motion experiments were carried out in simulation to study the behaviour and to discuss application issues.



Keywords: Hydraulic actuator, optimal control, separate meter-in/separate meter-out

Proceedings of 15:th Scandinavian International Conference on Fluid Power, June 7-9, 2017, Linköping, Sweden

Author:
Gerhard Rath, Emil Zaev
Title:
Optimal Control for Hydraulic System with Separate Meter-In and Separate Meter-Out
DOI:
http://dx.doi.org/10.3384/ecp17144125
References:
No references available

Proceedings of 15:th Scandinavian International Conference on Fluid Power, June 7-9, 2017, Linköping, Sweden

Author:
Gerhard Rath, Emil Zaev
Title:
Optimal Control for Hydraulic System with Separate Meter-In and Separate Meter-Out
DOI:
http://dx.doi.org/10.3384/ecp17144125
Note: the following are taken directly from CrossRef
Citations:
No citations available at the moment


Responsible for this page: Peter Berkesand
Last updated: 2017-02-21