Mitigating Mode Switching Oscillation in a One-Motor-One-Pump Motor-Controlled Hydraulic Cylinder via System Pressure Control: Simulation Study

Wei Zhao (), Morten Kjeld Ebbesen, Michael Rygaard Hansen and Torben Ole Andersen
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Wei Zhao: Department of Engineering Sciences, University of Agder, 4879 Grimstad, Norway
Morten Kjeld Ebbesen: Department of Engineering Sciences, University of Agder, 4879 Grimstad, Norway
Michael Rygaard Hansen: Department of Engineering Sciences, University of Agder, 4879 Grimstad, Norway
Torben Ole Andersen: Department of Energy Technology, Aalborg University, 9220 Aalborg East, Denmark

Energies, 2024, vol. 17, issue 24, 1-16

Abstract: This study focuses on a hydraulic cylinder that is directly connected to a fixed-displacement hydraulic pump driven by an electric servo motor. This particular setup is referred to as a one-motor-one-pump motor-controlled hydraulic cylinder (MCC). This paper presents a new approach to address mode switching oscillation (MSO) in MCCs by incorporating system pressure control capabilities. It conducts a detailed investigation into the factors that contribute to MSO in standard MCCs and thoroughly evaluates the effectiveness of the proposed system in mitigating MSO. The simulation results demonstrate the successful suppression of MSO. In conclusion, the proposed MCC with system pressure control capabilities is validated and, furthermore, it shows great potential for practical applications involving small loads and rapid retraction.

Keywords: motor-controlled hydraulic cylinder; system pressure control; mode switching oscillation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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