A comparison study of a novel self-contained electro-hydraulic cylinder versus a conventional valve-controlled actuator-part 1: Motion control

Daniel Hagen*, Damiano Padovani, Martin Choux

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

This research paper presents the first part of a comparative analysis of a novel self-contained electro-hydraulic cylinder with passive load-holding capability against a state of the art, valve-controlled actuation system that is typically used in load-carrying applications. The study is carried out on a single-boom crane with focus on the control design and motion performance analysis. First, a model-based design approach is carried out to derive the control parameters for both actuation systems using experimentally validated models. The linear analysis shows that the new drive system has higher gain margin, allowing a considerably more aggressive closed-loop position controller. Several benefits were experimentally confirmed, such as faster rise time, 75% shorter settling time, 61% less overshoot, 66% better position tracking, and reduction of pressure oscillations. The proposed control algorithm is also proven to be robust against load variation providing essentially the same position accuracy. In conclusion, the novel self-contained system is experimentally proven to be a valid alternative to conventional hydraulics for applications where passive load-holding is required.

Original languageEnglish
Article number79
JournalActuators
Volume8
Issue number4
DOIs
StatePublished - 1 Dec 2019
Externally publishedYes

Keywords

  • Active damping
  • Electro-hydraulic systems
  • Feedback control systems
  • Linear actuators
  • Linear control design
  • Load-carrying applications
  • Modeling and simulation
  • Passive load-holding
  • Proportional directional control valves
  • Self-contained cylinders

Fingerprint

Dive into the research topics of 'A comparison study of a novel self-contained electro-hydraulic cylinder versus a conventional valve-controlled actuator-part 1: Motion control'. Together they form a unique fingerprint.

Cite this