Extended Analysis of a Valve-Controlled System with Multi-Chamber Actuator

Authors

  • Henrique Raduenz Division of Fluid and Mechatronic Systems, Linköping University, Linköping, Sweden https://orcid.org/0000-0002-2781-3752
  • Liselott Ericson Division of Fluid and Mechatronic Systems, Linköping University, Linköping, Sweden
  • Kim Heybroek Volvo Construction Equipment, Eskilstuna, Sweden https://orcid.org/0000-0001-6452-2746
  • Victor J. De. Negri Federal University of Santa Catarina, Florianópolis, Brazil https://orcid.org/0000-0002-1860-3104
  • Petter Krus Division of Fluid and Mechatronic Systems, Linköping University, Linköping, Sweden

DOI:

https://doi.org/10.13052/ijfp1439-9776.2314

Keywords:

Digital fluid power, Multi-chamber actuators, Resistive control losses

Abstract

This paper outlines an extended analysis on how multi-chamber actuators can improve the efficiency of valve-controlled systems. Resistive control is a major source of energy losses in valve-controlled systems that share the same pump to drive multiple loads. By combining different chambers, the load on multi-chamber actuators can be transformed into different pressure and flow rate levels. This allows the adaptation of its load to the loads on other actuators. This can lead to a reduction of resistive control energy losses that occur between pump and actuators when driven simultaneously. As a case study to highlight how the system efficiency can be improved, a load sensing system with a conventional and a multi-chamber actuator is analysed. The equations that describe the system steady state behaviour are presented to evaluate the effect of the load transformations on the system efficiency. A disadvantage of such architecture is the fact that load transformations result in different actuator speeds. To reduce this effect, a compensation factor for the command signal to the proportional valve is presented. The highlight from this paper is the potential for efficiency improvement enabled by the adoption of multi-chamber actuators in a valve-controlled architecture. Further research is required for the selection of number of chambers and their areas since they directly affect the system efficiency.

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Author Biographies

Henrique Raduenz, Division of Fluid and Mechatronic Systems, Linköping University, Linköping, Sweden

Henrique Raduenz received the master’s degree in Mechanical Engineering at the Federal University of Santa Catarina (UFSC), Brazil, in 2018. Currently he is doing his double-degree doctoral studies at UFSC and at Linköping University, Sweden. The main topic of research is fluid power systems for mobile machines.

Liselott Ericson, Division of Fluid and Mechatronic Systems, Linköping University, Linköping, Sweden

Liselott Ericson received a Ph.D in hydraulics at Linköping University (LiU), Sweden, in 2012. She currently works as an associate professor at Fluid and Mechatronic Systems at LiU. The areas of interest include pump and motor design, electro-hydraulic systems, modelling and simulation.

Kim Heybroek, Volvo Construction Equipment, Eskilstuna, Sweden

Kim Heybroek was born in Västervik, Sweden, in 1981. He received the M.Sc. degree in mechanical engineering from Linköping University (LiU), Linköping, Sweden, in 2006. In 2008, he joined Volvo Construction Equipment in Eskilstuna, where he is currently working as a Research Engineer and has a Specialist role in the field of hydraulics. In 2017, he received the Ph.D. degree in hydraulics at the Department of Fluid Power and Mechatronic Systems (FluMeS) at LiU.

Victor J. De. Negri, Federal University of Santa Catarina, Florianópolis, Brazil

Victor J. De Negri has been Head of the Laboratory of Hydraulic and Pneumatic Systems (LASHIP) at the Department of Mechanical Engineering, Federal University of Santa Catarina (UFSC), Brazil, since 1995. He received his D. Eng. degree in 1996 from UFSC. He is a member of ASME and ABCM and Associate Editor of the IJFP and JBSMSE. His research areas include the analysis and design of hydraulic and pneumatic systems and design methodology for mechatronic systems.

Petter Krus, Division of Fluid and Mechatronic Systems, Linköping University, Linköping, Sweden

Petter Krus is a professor and head of division of Fluid and Mechatronic Systems at Linköping University in Sweden. He is also holder of the Swedish Endowed Chair in Aeronautics at “Instituto Technólogico Aeronáutica”, ITA in Brazil. His field of research is in fluid power systems, aeronautics, systems engineering, modelling and simulation and design optimisation.

References

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Published

2021-11-20

Issue

Section

SICFP 2021