Optimal mode switching for a hydraulic actuator controlled with four-valve independent metering configuration

International Journal of Fluid Power

Volumn 9, Issue 1, 2008, Pages 35-43

  Shenouda, Amir ^a   Book, Wayne ^a  

^a GEORGIA INSTITUTE OF TECHNOLOGY   (United States)

Author keywords

Hydraulics; Independent metering valves; Metering modes; Mode capability curve; Mode switching

Indexed keywords

CONTROLLABILITY; DEGREES OF FREEDOM (MECHANICS); ENERGY CONSERVATION; HYDRAULIC MACHINERY; HYDRAULICS; OPTIMAL CONTROL SYSTEMS;

INDEPENDENT METERING VALVES; METERING MODES; MODE CAPABILITY CURVE; MODE SWITCHING;

ACTUATORS;

EID: 41049114869     PISSN: 14399776     EISSN: None     Source Type: Journal    
DOI: 10.1080/14399776.2008.10781295     Document Type: Article

References (17)

1. Branicky, M. S., Borkar, V. S., and Mitter, S. K., 1998. A Unified framework for hybrid control:Model and optimal control theory. IEEE Transactions on Automatic Control, Vol. 43, pp. 31–45, January.
2. Egerstedt, M., Wardi, Y., and Delmott, F., 2003. Optimal control of switching times in switched dynamical systems. IEEE Conference on Decision and Control, Maui, Hawaii, December.
3. Jansson, A., and Palmberg, J-O., 1990. Separate control of meter in and meter out orifices in a mobile hydraulic systems. SAE Technical Paper (901583).
4. Kramer, K. D., and Fletcher, E. H., 1996. Electrohydraulic valve system. United States Patent (Re,33,846).
5. Liu, S., and Yao, B., 2002. Energy saving control of single-rod hydraulic cylinders with programmable valve sand iporved working model selection. National Fluid Power Association, Vol. 102, No. 24, pp. 81–91.
6. Pfaff, J., and Tabor, K., 2004. Method of sharing flow of fluid among multiple hydraulic functions in a velocity based control system. United States Patent (6,779,340).
7. Pfaff, J., and Tabor, K., 2004. Velocity based electronic control system for operating hydraulic equipment. United States Patent (6,732,512).
8. Shenouda, A., and Book, W., 2005. Energy savings analysis using a four valve independent metering configuration controlling a hydraulic cylinder. SAE Commercial Vehicle Engineering Conference, Chicago, Illinois.
9. Shenouda, A., and Book, W., 2005. Selection of operating modes of a multi-functional hydraulic device. IMECE Conference, Orlando, Florida.
10. Shenouda, A., 2006. Quasi-Static Hydraulic Control Systems and Energy Savings Potential Using Independent Metering Four-Valve Assembly Configuration. PhD Dissertation, Georgia Institute of Technology, Atlanta, Georgia.
11. Stephenson, D. B., 2003. Hydraulic system with cross function regeneration. United States Patent (5,502,393).
12. Tabor, K., 2004. Velocity based method for controlling a hydraulic system. United States Patent (6,718759).
13. Tabor, K., 2004. Velocity based method for controlling an electro-hydraulic proportional control valve. United States Patent (6,775,974).
14. Tabor, K., 2005. A novel method of controlling a hydraulic actuator with four valve independent metering using force feedback. SAE Commercial Vehicle Engineering Conference, Chicago, Illinois.
15. Tabor, K., 2005. Optimal velocity control and cavitation prevention of a hydraulic actuator using four valve independent metering. SAE Commercial Vehicle Engineering Conference, Chicago, Illinois.
16. Xu, X., and Antsaklis, P., 2002. Optimal control of switched autonomous systems. IEEE Conference on Decision and Control, pp. 2063–2068.
17. Xu, X., and Antsaklis, P., 2004. Optimal control of switched dynamical systems based on parameterization of switching instants. IEEE Transactions on Automatic Control, Vol. 49, pp. 2–16.