A flexible working hydraulic system for mobile machines

Authors

  • Mikael Axin Division of Fluid and Mechatronic Systems (Flumes), Department of Management and Engineering (IEI), Linköping University, Linköping, Sweden
  • Björn Eriksson Parker Hannifin, Borås, Sweden http://orcid.org/0000-0002-6371-1390
  • Petter Krus Division of Fluid and Mechatronic Systems (Flumes), Department of Management and Engineering (IEI), Linköping University, Linköping, Sweden http://orcid.org/0000-0002-2315-0680

DOI:

https://doi.org/10.1080/14399776.2016.1141635

Keywords:

Mobile hydraulics, dynamics, energy efficiency, pump controller

Abstract

This paper proposes a novel working hydraulic system architecture for mobile machines. Load sensing, flow control and open-centre are merged into a generalized system description. The proposed system is configurable and the operator can realize the characteristics of any of the standard systems without compromising energy efficiency. This can be done non-discretely on-the-fly. One electrically controlled variable displacement pump supplies the system and conventional closed-centre spool valves are used. The pump control strategies are explained in detail. Experimental results demonstrate one solution to the flow matching problem and the static and dynamic differences between different control modes.

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Author Biographies

Mikael Axin, Division of Fluid and Mechatronic Systems (Flumes), Department of Management and Engineering (IEI), Linköping University, Linköping, Sweden

Mikael Axin received his Master of Science in Mechanical Engineering from Linköping University and is currently working towards a PhD degree at the Division of Fluid and Mechatronic Systems, Linköping University. Research interests are modelling, simulation and control of fluid power systems. Applications are in construction machinery.

Björn Eriksson, Parker Hannifin, Borås, Sweden

Björn Eriksson received his PhD degree from Linköping University, for research into mobile fluid power systems design, with a focus on energy efficiency. He is currently working as a senior systems engineer at Global Mobile Systems, Parker Hannifin. Research interests are modelling, simulation and control of fluid power systems.

Petter Krus, Division of Fluid and Mechatronic Systems (Flumes), Department of Management and Engineering (IEI), Linköping University, Linköping, Sweden

Petter Krus is a professor in Fluid and Mechatronic Systems at Linkoping University. Research interests are fluid power, mechanical and mechatronic systems technology, specifically focusing on system dynamics, control, system simulation, optimization, system design and design automation. Applications are in aircraft design, road vehicles and construction machinery.

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Published

2016-08-01

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Original Article