Design and Integrated Simulation of the Electro-Hydraulic Servo System Based on AMESim and Matlab

Abstract

Since electro-hydraulic servo system has fast response and highest control accuracy, it has been widely used in industrial application, including aircraft, mining, manufacturing, and agriculture, etc. With the fast development of computer science, it is feasible and available to evaluate the performance of the designed control system via virtual simulation before the practical usage of the system. In order to optimize the design procedure of the electro-hydraulic proportional controller, the co-simulation design method based on AMESim-Matlab is presented for the electro-hydraulic servo system in this paper. High accuracy of the mathematical model of electro-hydraulic servo system was full-fitted by the use of AMESim, and the advantage of high solving precision for large amount of calculation was full played using Matlab. The PID controller was employed to realize the efficient control of the motion of the hydraulic cylinder. The united simulation technique was adopted to verify the good performance of the designed control system. The simulation results suggest that the proposed method is effective for the design of electro-hydraulic servo systems and thus has application importance.

Refined Modeling Method and Analysis of an Electromagnetic Direct-Drive Hydrostatic Actuation System

“…Reference [17] modeled EHA-based active suspension based on a power bond graph. Multidisciplinary modeling is often based on the transfer function to build the driving unit model and linearize the hydrostatic pump model, and then determine the model parameters through system identification [18,19]. References [20,21] studied and identified the model parameters by combining theoretical modeling with system identification modeling.…”

Analysis and design of auto-adaptive leveling hydraulic suspension for agricultural robot

“…This is a passive leveling system, which can be used for applications with small adjustment range and low sensitivity requirements. 15,16 The interconnected leveling suspensions with electrohydraulic actuators as actuating elements are also adopted. The interconnected leveling suspension can only be adjusted in one direction.…”

Modeling and simulation for application of electromagnetic linear actuator direct drive electro-hydraulic servo system

“…Now the electro-hydraulic servo system modeling method [5][6][7] mainly concentrates in the transfer function method of the classical control theory, but has been difficult to meet requirements for the occasion of high real-time requirement with a nonlinear influence system. The modeling based on the graphical modeling software-AMEsim has a friendly interface simulation on the simple hydraulic system, but it is hard to achieve control algorithm, and generally has united simulation with Matlab [8,9]. The setting is relatively cumbersome, and 978-1-4673-5019-8/12/$31.00 ©2012 IEEE 430 the real-time cannot be ensured, but the use of Simscape under Matlab/Simulink could achieve a very good field modeling simulation, and also could realize the real-time control algorithm [10].…”

“…(8) h= x(} ±x (9) In which Q is the flow through valve outlet, Cd is flow coefficient, A is valve orifice area, AmiU is maximum open area, p is fluid density, P is import and export pressure, his valve opening, h max is maximum opening degree of the valve port, Xo is initial position, x is spool displacement, sign is signum function.…”