Integrated control of clamping force and energy-saving in hydraulic injection moulding machines using decoupling fuzzy sliding-mode control

Abstract

The objective of this research is to implement a novel parallel control of clamping force and energy-saving in hydraulic injection moulding machines (HIMMs) in order to simultaneously achieve accurate force control response and high energy efficiency. In order to verify the feasibility of the integrated control system and compare energy-saving effects, the clamping force control of HIMMs can be integrated with two different energy-saving control systems or integrated with a conventional hydraulic system without energy-saving control. The overall control system is a coupled two-input two-output system. Therefore, a decoupling fuzzy sliding-mode control (DFSMC) strategy, which can reduce the fuzzy rule numbers and counteract the coupling effects, is developed for the integrated control of HIMMs. The experimental results show the outstanding performance of the parallel control in HIMMs with DFSMC.

Adaptive super-twisting observer for fault reconstruction in electro-hydraulic systems

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Joint Torque Control of Hydraulic Quadruped Robot

“…America, Italy, Korea and china had rolled out their own hydraulic quadruped robot, they mainly researched on the gait of robot, but there were less research on the force control of electro-hydraulic servo actuator, although there were a lot of research results about force control of electro-hydraulic servo actuator, such as predictive control [1], quantitative feedback control [2], μrobust control [3], fuzzy sliding mode control [4] and so on, but they were too complex and particular about the processor.…”

Simulation and Experimental Studies on Perfect Tracking Optimal Control of an Electrohydraulic Actuator System

“…With a compact size and design, EHA system is capable of generating high forces in fast response time and produced great durability in particular for heavy engineering system [1]. By utilizing the advantages of EHA system, different applications such as aircrafts [2], manufacturing machines [3][4][5], fatigue testing [6], hydraulic excavator [7], sheet metal forming process [8], and automotive applications [9][10][11] established that the actuator system can be more well known and crucial nowadays. Therefore, a feedback tracking control is always required in designing the high-performance for tracking and positioning EHA system.…”