Article | 13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden | Structural design of independent metering control systems
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Title:
Structural design of independent metering control systems
Author:
A. Sitte: Institute of Fluid Power, Technical University Dresden, Dresden, Germany J. Weber: Institute of Fluid Power, Technical University Dresden, Dresden, Germany
DOI:
10.3384/ecp1392a26
Download:
Full text (pdf)
Year:
2013
Conference:
13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden
Issue:
092
Article no.:
026
Pages:
261-270
No. of pages:
10
Publication type:
Abstract and Fulltext
Published:
2013-09-09
ISBN:
978-91-7519-572-8
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


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This paper regards to design and examination of electrohydraulic control systems with separate metering edges for mobile applications. Although the idea of individual metering has existed for some time; this promising technology has yet to be applied in field. One reason for the missing prevalence is the lack of understanding regarding the complex control requirements. Furthermore; expected additional expenses regarding components such as valves and transducers hinder the acceptance. This work outlines a systematic analysis of possible circuit concepts. The obtained solution space contains a large number of elements that must be evaluated based on functional and economical criteria. Therefore; it is advantageous to divide the control system into its functional fractions. The clear distinction of the functional fractions enables a systematization of the different drive and control tasks; which then can be combined freely. The selection of appropriate control signals can be supported by the usage of a multivariable system modeling approach. Physical interactions; inherent to electrohydraulic systems; have a strong impact on the behavior of the control loops. By analyzing the coupling elements; conclusions regarding control concepts and structures can be drawn

Keywords: Electrohydraulic control systems; separate metering; MIMO; valve structures

13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden

Author:
A. Sitte, J. Weber
Title:
Structural design of independent metering control systems
DOI:
http://dx.doi.org/10.3384/ecp1392a26
References:

[1] Lunze; J.;Regelungstechnik 2 Mehrgrößensysteme Digitale Regelung; Springer; 2005.


[2] Anon; Eaton Ultronics Management System; Brochure No. E-VLDI-MR003-E2 Eaton Cooperation; 2005.


[3] Djurovic; M.; Energiesparende Antriebssysteme f√ľr die Arbeitshydraulik mobiler Arbeitsmaschinen ‚ÄěElektrohydraulisches Flow Matching‚Äú Dissertation TU Dresden; 2007.


[4] Eriksson; B.; Larson; J.; Palmberg J.-O Study on Individual Pressure Control in Energy Efficient Cylinder Drives; 4th FPNI-PhD Symposium; Sarasota USA; 2006.


[5] Elving; M; Palmberg; J.-O. Distributed Control of Fluid Power Actuator ‚Äď A Load-Sensing Application of a Cylinder with Decoupled Chamber Pressure Control 5th Scandinavian International Conference on Fluid Power; Link√∂ping; 1997.


[6] Eriksson; B; R√∂sth; M.; Palmberg; J.-O. A; High Energy Efficient Mobile Fluid Power System ‚Äď Novel System Layout and Measurement; 6th International Fluid Power Conference; Dresden; 2008.


[7] Finzel; R; Elektrohydraulische Steuerungssysteme f√ľr mobile Arbeitsmaschinen; Dissertation TU Dresden; 2010.


[8] Jongebloed; H.; Fees; G. Proportional Directional Valve with Autonomous Spools (PAS) for Mobile Applications; 6th International Fluid Power Conference 6.IFK; Dresden; 2008.


[9] Jansson; A.; Palmberg; J.-O. Separate Controls of Meter-in and Meter-out Orfices in Mobile Hydraulic Systems; Intenational Off-Highway & Power Plant Congress and Exposition; Milwaukee (USA); 1990.


[10] Linjama; M.; Huova; M.; Vilenius; M. Online Minimisation of Power Losses in Distributed Digital Hydraulic Valve Systems; 6th International Fluid Power Conference 6. IFK; Dresden; 2008.


[11] Matilla; J.; On Energy Efficient Motion Control of Hydraulic Manipulators; PhD Thesis; Tampere University of Technology; 2000.


[12] Meilicke; D.; Rough Terrain Lift Truck Efficiency and Control Improvement through Electronically Controlled Distributed Valves; CFP; Las Vegas (USA); 2008.


[13] German Patent DE 10200705403536A1; Energier√ľckgewinnungs- und Wiedernutzungsverfahren f√ľr ein Hydrauliksystem; HUSCO International; 2008.


[14] United States Patent 5568759 Hydraulic circuit having Dual Electro-hydraulic Control Valves; Caterpillar Inc.; 1996.


[15] European Patent EP 1710446A2; Hydraulische Steueranordnung und Steuerblock; Bosch Rexroth AG; 2006.


[16] United States Patent 005947140; System and method for controlling an independent metering valve; Caterpillar Inc.; 1999.


[17] United States Patent 006976418; Hydraulic System with an actuator having independent meter-in and meter-out control; Caterpillar Inc.; 2006.


[18] Europeans Patent 0809737; Electrohydraulic proportional control valve assemblies; Eaton Ultronics; 1996.


[19] International Patent WO 2007/015814; EH Metering valve with integral flow control; Caterpillar; 2007.


[20] International Patent WO 02/075162 A1; Control Valve; Bucher Hydraulics GmbH; 2002.


[21] United States Patent 002770046; Integrated valve assembly and computer control for a distributed hydraulic control system; Husco International Inc.; 2007


[22] Pfaff; J.; Distributed Electro-hydraulic Systems for Telehandlers; 50th National Conference on Fluid Power; Las Vegas (USA); 2005.


[23] United States Patent 6073652; Pilot Solenoid Control Valve with Integral Pressure Sensing Transducer; Husco International Inc.; 2000.


[24] Shenouda; A.; Quasi-Static Hydraulic Control Systems and Energy Savings Potential using Independent Metering Four-Valve Assembly Configuration; PhD studies; Georgia Institute of Technology; USA; 2006.


[25] Shenouda; A.; Book; W.; Selection of Operating Modes of a Multi-Functional Hydraulic Device; ASME International Mechanical Engineering Congress and Exposition; Orlando (USA); 2005.


[26] Tabor; K.; A Novel Method of Controlling a Hydraulic Actuator with four Valve Independent Metering using Load Feedback; SAE Commercial Vehicle Engineering Conference; Chicago (USA); 2005.


[27] Yuan; Q.; Lew; J.; Modelling and Control of Two Stage Twin Spool Servo-Valve for Energy-Saving; American Control Conference; Portland; USA; 2005.


[28] Zhang; J.; Pressure Compensated Independent Metering Valve for EH System; NCFP; Las Vegas (USA); 2008.

13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden

Author:
A. Sitte, J. Weber
Title:
Structural design of independent metering control systems
DOI:
http://dx.doi.org/10.3384/ecp1392a26
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