基于模糊PID控制沥青砂浆车液压调平系统  

Hydraulic leveling system for asphalt mortar vehicle based on fuzzy PID control strategy

作　　者：房怀英[1] 杨建红[1] 吴仕平[1] 

机构地区：[1]华侨大学机电及自动化学院,福建泉州362021

出　　处：《长安大学学报（自然科学版）》2011年第1期98-101,共4页Journal of Chang’an University(Natural Science Edition)

基　　金：福建省重大专项专题项目(2008HZ0002-1);福建省自然科学基金项目(D0810019);国务院侨办自然科学基金项目(08QZR02)

摘　　要：针对施工中沥青砂浆搅拌车的计量设备受其水平度影响大和频繁移动的特点,以可编程逻辑控制器(PLC)为控制核心,开发了4点液压调平系统,分别以PID(比例、积分、微分)和模糊PID为调平控制方法进行试验对比研究。结果表明:在满足调平精度为±0.1°前提下,模糊PID调平控制的调平时间为8.5 s,PID调平控制的调平时间为23 s;模糊PID控制通过优化调平过程中阀的开度,能够显著提高调平效率和调平精度,基于模糊PID控制调平能提高沥青砂浆车的计量精度和施工效率。The accuracy of metrology equipment can be influenced by levelness when asphalt mortar vehicle is working and need move often. A four-point-leveling system is developed based on key control unit of PLC（programmable logic controller）. Some contrast experiment is studied by PID（proportion, integral, derivative） control strategy and fuzzy PID control strategy. The results show that the total leveling time of asphalt mortar vehicle is only 8.5 seconds by fuzzy PID control strategy and total leveling time is 23 seconds by PID control strategy. The fuzzy PID control strategy can improve leveling efficiency and leveling accuracy significantly by changing the value of the proportional valve. The leveling system based on fuzzy PID can improve the metrology accuracy and construction efficiency. 1 tab, 5 figs, 7 refs.

关 键 词：机械工程 沥青砂浆车 液压调平 模糊PID 比例阀 

分 类 号：U415.5[交通运输工程—道路与铁道工程] TH455.06[机械工程—机械制造及自动化]