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A new electronic load sensing system is proposed that combines a fixed displacement hydraulic pump with variable speed and a servo valve. The pump is driven by an inverter motor used for varying flow, and the valve is used to control the pressure of the system. The proposed configuration is suitable for applications where the power of the system changes during its cycle, such as a forming machine. In this study, the system is modeled and simulated, and the performance of the system is evaluated. A SISO adaptive fuzzy sliding mode control controller is designed for position control of the cylinder for tracking a simple pressing cycle. A simple control strategy is also designed for the pump to control the power of the system. Energy saving of the system is statically analyzed while the performance of the system was investigated. The simulation results indicate that the system is well tracking the reference with the uncertainty model parameters and external disturbance.

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Model and Simulation of an Electronic Load-Sensing System Application for Hydraulic Forming Machine: An Investigation on Design of Adaptive Fuzzy Sliding Mode Controller

  • 会议论文

  • 发表日期：

    2025年

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  • Triet Hung Ho,
  • Anh Son Tran,
  • Minh Tuan Ho,
  • Ngoc Anh Tuan Vo,
  • Quoc Nguyen Banh

摘要

A new electronic load sensing system is proposed that combines a fixed displacement hydraulic pump with variable speed and a servo valve. The pump is driven by an inverter motor used for varying flow, and the valve is used to control the pressure of the system. The proposed configuration is suitable for applications where the power of the system changes during its cycle, such as a forming machine. In this study, the system is modeled and simulated, and the performance of the system is evaluated. A SISO adaptive fuzzy sliding mode control controller is designed for position control of the cylinder for tracking a simple pressing cycle. A simple control strategy is also designed for the pump to control the power of the system. Energy saving of the system is statically analyzed while the performance of the system was investigated. The simulation results indicate that the system is well tracking the reference with the uncertainty model parameters and external disturbance.