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Power Management in Hydraulically Actuated Mobile Equipment

[+] Author Affiliations
Henrik C. Pedersen, Torben O. Andersen, Michael R. Hansen

Aalborg University, Aalborg, Denmark

Paper No. IMECE2007-42655, pp. 151-158; 8 pages
  • ASME 2007 International Mechanical Engineering Congress and Exposition
  • Volume 4: Design, Analysis, Control and Diagnosis of Fluid Power Systems
  • Seattle, Washington, USA, November 11–15, 2007
  • Conference Sponsors: ASME
  • ISBN: 0-7918-4298-3 | eISBN: 0-7918-3812-9
  • Copyright © 2007 by ASME


The focus of the current paper is on the control of hydraulic systems when utilizing the advances that electronic control may bring with regard to power management, prioritized flow sharing and anti-stall, arising from being able to control both pump, valves and engine electronically. A simple model of a backhoe loader is first presented. Based on this model and the dynamic properties of the system, a generally applicable power management algorithm is developed based on an optimization procedure, which takes into account the dynamics of the system and different modes of operation and saturation. Finally the algorithm is verified through simulation results and the possibilities and limitations of the algorithm are discussed.

Copyright © 2007 by ASME



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