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Design and Study of Multi-Channel Hydraulic Servo Control System Based on PC104

Author: ZhaoWuYing
Tutor: WuXueJie
School: Southwest Jiaotong University
Course: Vehicle Operation Engineering
Keywords: Hydraulic servo control PC104 CPLD Dual-port RAM LabVIEW
CLC: TP273.21
Type: Master's thesis
Year: 2009
Downloads: 221
Quote: 1
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Abstract


Vehicle suspension and rear axle static load , dynamic load and fatigue testing is an integral part of the automotive design and research process , and electro-hydraulic servo control system is essential during the test load equipment . Research and design applied to of automotive architecture fatigue test bench digital electro-hydraulic servo control system , not only help to improve the level of China's automobile fatigue test , but also conducive to promoting the development of China 's auto industry . In this paper, based on computer technology and hydraulic servo control technology to design a multi-channel hydraulic servo control system based on MCU and PC104 . This paper describes the principle and basic characteristics of the hydraulic servo control system , the control system design of the overall program , based on the analysis of the system functional requirements and performance indicators , with a core board Cadogan block servo control board design methods to reduce the difficulty and increase the speed , and little change can be easily applied to other fields . According to the general scheme of the system , each block of servo control board with new Hualong MCU C8051F060 dual-port RAM , CPLD , AD620 and OP07 the chip corresponding channel conditioning circuits , digital input output and dual-port RAM and other hardware circuit design . Core board using the the PC104 control module , using its powerful processing capacity to handle the data . The each block servo control board is connected by PC104 bus and PC104 , and servo control board dual-port RAM PC104 exchange data. Core board and servo control board can be separated from the design , respectively, to achieve , to simplify the development difficulty and easy to extend the channel does not affect the speed . In addition , on the basis of conventional PID algorithm , feedforward PID control algorithm in MATLAB software simulation , good simulation results . Graphical programming tool LabVIEW HMI software development and design of man-machine interface . Using C language software program for multi-channel servo controller . Each part of the system design is completed , the various parts of debugging. Results from the debugging point of view , the system is reliable , high control accuracy , easy operation , good performance .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system > Adaptive ( self- tuning ) control,adaptive control ( self-tuning ) system > The characteristic adaptive control system
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