Multi-Pressure actuator in enhancing the energy balance of micro-excavator

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


Research units

  • Tampere University of Technology
  • Fiellberg Oy


This paper presents results of an experimental study conducted with an electrified small sized excavator, whose boom swing function is equipped with digital hydraulic multi-pressure actuator. Highlighted and discussed are the performance, energy efficiency and controllability of the function in varying inertia loads. In addition, component-specific energy losses are analysed. This data is compared with the results gained with the excavator’s original control arrangement, a load-sensing system based on pressure adjustment valve. Results manifest high energy saving potential of the multi-pressure system in mobile machinery.


Original languageEnglish
Title of host publication16th Scandinavian International Conference on Fluid Power, SICFP 2019
EditorsKalevi Huhtala
Publication statusPublished - 22 May 2019
MoE publication typeA4 Article in a conference publication
EventScandinavian International Conference on Fluid Power - Tampere-talo, Tampere, Finland
Duration: 22 May 201924 May 2019
Conference number: 16


ConferenceScandinavian International Conference on Fluid Power
Abbreviated titleSICFP
Internet address

    Research areas

  • digital multi-pressure actuator, micro-excavator, energy efficiency, control, experimental

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