重型汽车非线性空气悬架控制策略对比研究  

The comparative study of nonlinear air suspension control strategy for heavy trucks

作　　者：黄孟辉 李金辉 曹付义 张明柱[2] HUANG Menghui;LI Jinhui;CAO Fuyi;ZHANG Mingzhu(College of Vehicle and Traffic Engineering,Henan University of Science and Technology,Luoyang 471003,China;College of Mechatronics Engineering,Henan University of Science and Technology,Luoyang 471003,China)

机构地区：[1]河南科技大学车辆与交通工程学院,洛阳471003 [2]河南科技大学机电工程学院,洛阳471003

出　　处：《现代制造工程》2022年第11期61-65,7,共6页Modern Manufacturing Engineering

基　　金：国家自然科学基金项目(51375145)。

摘　　要：为改善重型汽车的行驶平顺性和道路友好性,基于重型汽车空气悬架的刚度特性,建立简化的重型汽车1/4车辆模型。对车身加速度和道路应力因子系数进行线性加权处理,并作为车辆的综合性能评价指标。设计了基于空气悬架系统的PID控制器、模糊控制器及混合天地棚控制器,对比分析了分别在低、中、高3种不同车速下,被动悬架与不同控制策略下空气悬架的车辆行驶平顺性、道路友好性及综合性能指数。结果表明,不同车速、不同控制策略对重型汽车行驶平顺性、道路友好性及综合性能的影响明显不同,混合天地棚控制策略下的空气悬架性能最优,其行驶平顺性、道路友好性及综合性能均优于PID控制策略和模糊控制策略。For improving the ride comfort and road friendliness of heavy truck,a simplified 1/4 vehicle model of heavy truck based on the stiffness characteristics of heavy truck air suspension was built.The vehicle body acceleration and road stress factor coefficients were linearly weighted as comprehensive performance evaluation indexes,the PID controller,fuzzy controller and hybrid sky and ceiling controller based on the air suspension system were designed,the ride comfort,road friendliness and comprehensive performance index of the vehicles with passive suspension and air suspension at low,medium and high three different vehicle speeds were compared and analyzed.The result that the influence of different speed and different control strategies on ride comfort,road friendliness and comprehensive performance of heavy vehicles is obviously different,and the air suspension under the hybrid sky and ceiling control has the best performance,and its ride comfort,road friendliness and comprehensive performance are better than PID control and fuzzy control.

关 键 词：重型汽车 空气悬架 混合天地棚控制 平顺性 道路友好性 

分 类 号：TH138.9[机械工程—机械制造及自动化]