Results 181 to 190 of about 3,471 (214)
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Iterative Learning Control of Double Servo Valve Controlled Electro Hydraulic Servo System
2011 Seventh International Conference on Computational Intelligence and Security, 2011Aimed at electro-hydraulic servo force control system, according to the nonlinear of electric-hydraulic servo valve, to improve the speed of equivalent valve response, we propose the double electric-hydraulic servo valve parallel control, and two servo valve are controlled by their respective controller, the same signal inputs two controller, every ...
Shaojuan Yu, Junjun Song
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Design of Embedded Electro-Hydraulic Servo Control System
2008 3rd International Conference on Innovative Computing Information and Control, 2008The design of embedded electro-hydraulic servo control system was proposed to realize remote control and communication of hydraulic units in industrial field. The specified method was given from the aspects of system structure, communication protocol, and software design, and was verified by a realistic application.
Jiangang Yi, Kuisheng Chen
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Electro-Hydraulic Servo Loading System for the Pumping Unit
Applied Mechanics and Materials, 2015Loading system of pumping unit simulates the working condition of pumping unit. It can repeat all kind of the real force and motion on pumping unit and detect the quality of pumping unit. Through analyzing the indicator diagram of pumping unit, we design a elecro-hydraulic servo loading system of pumping unit which uses the method of displacement and ...
Li Ping Xu, Song Yao
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Design of single channel electro-hydraulic servo system
2011 6th IEEE Conference on Industrial Electronics and Applications, 2011In this paper an single channel electro-hydraulic servo system is designed to validate compare and explore different control schemes on restraining Additional Torque inherent in force loading system. Also it is discussed how to improve loading performance by improving the electronic circuit.
Wang Xin, Yan Daiwei
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Research of Electro-hydraulic Servo System Model and Reduction
2010 International Conference on Electrical and Control Engineering, 2010In this paper it sets up the mathematical model of electro-hydraulic servo control system, and analyses it by MATLAB, then gives a model reduction method and use it to reduce the mathematical model, and compares the responses of step signal of the two systems. At last we prove that this reduction method is available and it has some advantages.
Jing Binghua, Song Liwu, Zhou Qingguo
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Research of a Robust Control for Electro Hydraulic Servo System
Advanced Materials Research, 2014In recent years, electro hydraulic servo systems are more and more widely used in the aerospace, manufacturing industry and the agricultural machinery. As a result, higher requirements are put forward for the performance and application environment, including better tracking precision and respond speed.
Xiao Gang Tang, Chao Zhang
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Backstepping-based output feedback control of an electro-hydraulic servo system
2015 IEEE 12th International Multi-Conference on Systems, Signals & Devices (SSD15), 2015This paper addresses the control of a hydraulic servo system rod subject to uncertainty in parameters and to an unknown but bounded disturbance. The proposed backstepping-based robust controller guaranties a uniformly ultimately bounded tracking error leading to practical stability of the closed loop system.
Sami El-Ferik +3 more
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Fuzzy-LQR hybrid control of an electro hydraulic velocity servo system
2011 11th International Conference on Hybrid Intelligent Systems (HIS), 2011This paper presents a new hybrid control strategy for velocity control of an electro hydraulic servo system (EHSS) in presence of flow nonlinearities and internal friction. We employed a combination of LQR controller and fuzzy-neural network in a feedback error learning framework.
Fereshteh Poloei +2 more
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The Neural Network Identification of the Electro-Hydraulic Servo System
Fluid Power Systems and Technology, 1997Abstract A new kind of neural network based on RBFN and CMAC is proposed in this paper. The learning speed is very fast so that it can be used to identify the hydraulic servo system on line. A new model structure used for the identification of the hydraulic servo system with large alternating disturbance is also proposed in this paper ...
He Hong +5 more
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Fault Modeling for Electro-Hydraulic Servo System Based on Hybrid System
Advanced Materials Research, 2012A parametric fault model of electro-hydraulic servo system based on hybrid system and multiple linear regression model was put forward. First of all, the operating condition of electro-hydraulic servo system was abstracted to discrete states, then using multiple linear regression algorithm, the model parameter were identified based on the statistical ...
Li Zhou, Xin Hua Jiang, Yan Liu
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