Actuation and Control in Digital Fluid Power

A special issue of Actuators (ISSN 2076-0825). This special issue belongs to the section "Control Systems".

Deadline for manuscript submissions: 31 August 2025 | Viewed by 617

Special Issue Editors


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Guest Editor
IHA-Innovative Hydraulics and Automation, Faculty of Engineering and Natural Sciences, Tampere University, FI-33720 Tampere, Finland
Interests: digital hydraulics; model-based control; efficiency; simulations

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Guest Editor
IHA-Innovative Hydraulics and Automation, Faculty of Engineering and Natural Sciences, Tampere University, FI-33720 Tampere, Finland
Interests: electro-hydraulics; electro-mechanical actuators; zonal hydraulics; direct-driven hydraulics; off-road machinery; efficiency; simulations; AI-based condition monitoring; reliability
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Special Issue Information

Dear Colleagues,

Contributions from all fields related to actuation and control in digital fluid power and their applications are welcome for this Special Issue, particularly the following topics:

  • Digital hydraulics and pneumatics.
  • Switching technologies.
  • Parallel connected systems.
  • Digital displacement concepts.
  • On/off and switching valves and their power electronics.
  • Control methods.
  • Applications and new concepts of digital fluid power.

On behalf of Actuators, we invite you to consider this Special Issue as a platform to disseminate your research results in the field of fluid power. We look forward to receiving your submissions.

As an open access journal, Actuators has an Article Processing Charge (APC) of 2400 CHF for accepted papers. DFP24 conference participants will receive a 50% discount on this fee.

Sincerely,

Prof. Dr. Matti Linjama
Prof. Dr. Tatiana Minav
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Actuators is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • digital fluid power
  • actuator
  • hydraulics

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Published Papers (1 paper)

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Research

24 pages, 4240 KiB  
Article
Digital Hydraulic Transformer Concepts for Energy-Efficient Motion Control
by Helmut Kogler
Actuators 2025, 14(2), 54; https://doi.org/10.3390/act14020054 - 25 Jan 2025
Viewed by 268
Abstract
Hydraulic linear drive systems with conventional proportional valves result in poor energy efficiency due to resistance control. In systems with multiple actuators connected to one common pressure supply, a load-sensing strategy is often used to reduce these throttling losses. However, like conventional cylinder [...] Read more.
Hydraulic linear drive systems with conventional proportional valves result in poor energy efficiency due to resistance control. In systems with multiple actuators connected to one common pressure supply, a load-sensing strategy is often used to reduce these throttling losses. However, like conventional cylinder actuators, common load-sensing systems are also not able to recuperate the energy, which is actually released when a dead load is lowered. In order to overcome these drawbacks, in this paper, new concepts of a digital hydraulic smart actuator and a load-sensitive pressure supply unit are presented, which are qualified to reduce throttling losses and, furthermore, to harvest energy from the load. According to previous research, the basic concepts used in this contribution promise energy savings in the range of 30% for certain applications, which is one of the main motivations for this study. The operating principles are based on a parallel arrangement of multiple hydraulic switching converters, representing so-called digital hydraulic transformers. Furthermore, the storage module of the presented load-sensitive pressure supply unit is able to boost the hydraulic power in the common pressure rail beyond the maximum power of the primary motor. For exemplary operating cycles of the smart actuator and the pressure supply unit, a significant reduction in the energy consumption could be shown by simulation experiments, which offers a new perspective for energy-efficient motion control. Full article
(This article belongs to the Special Issue Actuation and Control in Digital Fluid Power)
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