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Enabling Passive Load-Holding Function and System Pressures Control in a One-Motor-One-Pump Motor-Controlled Hydraulic Cylinder: Simulation Study

Author

Listed:
  • 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)

Abstract

This paper is concerned with a hydraulic cylinder directly controlled by a variable speed motor-driven fixed-displacement pump. The considered configuration is referred to as a one-motor-one-pump (1M1P) motor-controlled hydraulic cylinder (MCC). A 1M1P MCC with a hydraulically driven passive load-holding function enabled by controlled system pressures is proposed. The proposed load-holding functionality works if there is a standstill command, a loss of power supply, or a hose rupture. Additionally, this paper conducts a comprehensive analysis of the proposed system’s operation and load-holding function across four quadrants. The simulation results demonstrate four-quadrant operation and good load-holding performance under the aforementioned scenarios. In conclusion, the proposed 1M1P MCC can be successfully used on practical applications characterized by overrunning loads and four quadrant operation.

Suggested Citation

  • Wei Zhao & Morten Kjeld Ebbesen & Michael Rygaard Hansen & Torben Ole Andersen, 2024. "Enabling Passive Load-Holding Function and System Pressures Control in a One-Motor-One-Pump Motor-Controlled Hydraulic Cylinder: Simulation Study," Energies, MDPI, vol. 17(11), pages 1-19, May.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:11:p:2484-:d:1399414
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    References listed on IDEAS

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    1. Konrad Johan Jensen & Morten Kjeld Ebbesen & Michael Rygaard Hansen, 2021. "Novel Concept for Electro-Hydrostatic Actuators for Motion Control of Hydraulic Manipulators," Energies, MDPI, vol. 14(20), pages 1-27, October.
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