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大型载重车辆电液多轴转向执行机构的模糊PID控制
引用本文:孙玉波,高秀华,周富家,赵斌.大型载重车辆电液多轴转向执行机构的模糊PID控制[J].农业工程学报,2007,23(5):100-104.
作者姓名:孙玉波  高秀华  周富家  赵斌
作者单位:1. 吉林大学机械科学与工程学院,长春,130022
2. 徐州重型机械有限公司,徐州,221004
基金项目:吉林大学校科研和教改项目
摘    要:针对大型载重车辆电液转向系统的研究,建立了转向执行机构——电液比例阀控液压缸的数学模型。采用PID控制策略对液压缸的位置进行控制。由于传统的PID控制器参数整定不容易,该文将模糊控制应用到PID控制中,在线调整PID参数。利用MATLAB中SIMULINK模块搭建包含Fuzzy控制的系统模型。仿真结果表明:模糊PID控制改善了控制系统的动态特性,增强实用性。

关 键 词:车辆工程  多轴转向  执行机构  模糊PID
文章编号:1002-6819(2007)5-0100-05
收稿时间:2006/7/29 0:00:00
修稿时间:2006-07-292006-11-02

Fuzzy-PID control of the executive mechanism of electro-hydraulic multi-axle steering system for large heavy truck
Sun Yubo,Gao Xiuhu,Zhou Fujia and Zhao Bin.Fuzzy-PID control of the executive mechanism of electro-hydraulic multi-axle steering system for large heavy truck[J].Transactions of the Chinese Society of Agricultural Engineering,2007,23(5):100-104.
Authors:Sun Yubo  Gao Xiuhu  Zhou Fujia and Zhao Bin
Institution:College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China;College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China;College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China;Xuzhou Heavy Machinery Co., Ltd, Xuzhou 221004, China
Abstract:Based on the research of the electro-hydraulic steering system of crane, the mathematical model of the electro-hydraulic proportion control for a hydrocylinder was developed. The PID strategy was applied to control the location of the hydrocylinder. For solving the difficulty of PID control parameters adjusting, the combination of fuzzy control and PID control was employed to conduct on-line adjustment of PID parameters. The model of the control system including fuzzy control was established with SIMULINK module of MATLAB. The results of simulation show that the fuzzy PID control improves the dynamic characteristic of the system, enhances the practicability.
Keywords:vehicle engineering  mul-axles steering  executive machanism  Fuzzy- PID
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