矿用自卸车半主动油气悬架的模糊PID控制  

Fuzzy PID Control of Semi-Active Hydro-Pneumatic Suspension of Mining Dump Truck

作　　者：任远 吕宝占[2] REN Yuan;LYU Baozhan(Shanxi Changzhi Jingfang Coal Industry Co.,Ltd.,Shanxi Changzhi 047100,China;School of Mechanical and Power Engineering,Henan Polytechnic University,Henan Jiaozuo 454000,China)

机构地区：[1]山西省长治经坊煤业有限公司,山西长治047100 [2]河南理工大学机械与动力工程学院,河南焦作454000

出　　处：《机械设计与制造》2025年第4期87-91,共5页Machinery Design & Manufacture

基　　金：河南省科技攻关项目(182102310843);河南省高等学校重点科研项目计划(18A580004)。

摘　　要：为了改善矿用自卸车的行驶平顺性,设计出一种两级压力式阻尼连续可调半主动油气悬架。在分析悬架系统的结构与工作原理的基础上,采用基于遗传算法优化的模糊PID控制对油气悬架阻尼进行调节,以车身垂向加速度、悬架动行程作为评价指标,在MATLAB/Simulink环境下进行仿真,并进行了基于dSPACE的半主动油气悬架在环仿真实验。结果表明,基于遗传算法优化的模糊PID控制下车身垂向加速度、悬架动行程均方根与被动悬架相比分别下降了22.16%、13.00%,明显提高了矿用自卸车的行驶平顺性。To improve the ride comfort of mining dump truck,a two-stage pressure semi-active hydro pneumatic suspension with continuously adjustable damping is designed.On the basis of analyzing the structure and working principle of the suspension sys⁃tem,the body’s vertical acceleration and the suspension’s dynamic stroke used as the evaluation indexes,fuzzy PID control based on genetic algorithm is used to adjust the damping of hydro pneumatic suspension,the ride comfort simulation is carried out in MATLAB/Simulink environment,and in-loop simulation experiment on semi-active hydro-pneumatic suspension based on dSPACE is conducted.The results show that,compared with the passive suspension,the root mean squares of body’s vertical ac⁃celeration and suspension’s dynamic stroke are reduced by 22.16%and 13.00%respectively under the fuzzy PID control based on genetic algorithm,which effectively improves the ride comfort of the mining dump truck.

关 键 词：矿用自卸车 油气悬架 遗传算法 模糊PID控制 

分 类 号：TH16[机械工程—机械制造及自动化] U461.4[机械工程—车辆工程]