摘要
在电磁阀减振器力-速度特性试验基础上,针对电磁阀减振器1/4车辆半主动悬架非线性特性和电磁阀减振器可调阻尼力输出饱和特性,提出一种基于输入饱和的滑模控制策略。建立半主动悬架1/4车辆非线性模型和输入简化的悬架参考模型。设计半主动悬架1/4车辆非线性模型滑模控制器,同时考虑电磁阀减振器阻尼力存在的输出饱和特性,设计辅助分析系统,以控制补偿信号对滑模控制器进行饱和补偿。Matlab/Simulink仿真与台架试验结果表明:设计的输入饱和滑模控制器能有效消除电磁阀减振器输出饱和特性影响,使电磁阀减振器半主动悬架车身垂向加速度、悬架动挠度等性能指标很好地跟踪或接近悬架参考模型理想输出,优化电磁阀减振器半主动悬架非线性控制与设计,有效改善车辆乘坐舒适性。
On the basis of experiments on force-speed characteristics of solenoid valve damper,a slide model control strategy based on saturated input was put forward for a quarter vehicle semi-active suspension with solenoid valve damper,which considered the nonlinear properties of vehicle semi-active suspension and output saturation properties of solenoid valve damper with adjustable damping force.A quarter vehicle nonlinear model with semi-active suspension and a suspension reference model with simplified input were built.A slide model controller was designed for a quarter vehicle nonlinear model.Meanwhile,considering the damping force output saturation property of solenoid valve damper,an assistant analysis system was designed to generate control compensation signal in order to compensate the saturation of the slide model controller.The results of simulation under Matlab/Simulink and experiments showed that the slide model controller based on saturated input could effectively eliminate the influence of output saturation of solenoid valve damper,and make the performance indexes,such as vehicle body vertical acceleration and suspension working space, close to the corresponding ideal output of a suspension reference model.It could also optimize the semi-active suspension design and control so as to improve vehicle ride comfort.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2014年第4期1-7,36,共8页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家自然科学基金资助项目(51075112
51305117
51178158)
安徽省高等学校省级自然科学基金资助项目(KJ2012B050)
关键词
车辆
半主动悬架
电磁阀减振器
非线性
饱和滑模控制
试验
仿真
Vehicle Semi-active suspension Solenoid valve damper Nonlinear Saturated SMC Experiment Simulation
作者简介
杨柳青，博士生，安徽交通职业技术学院副教授，主要从事车辆动力学及其控制和汽车检测技术研究，E-mail：ahhfylq@126．com
通讯作者：陈无畏，教授，博士生导师，主要从事车辆动力学和汽车集成控制研究，E-mail：cww@mail．hf．ah．cn
