Enhancement of Ride Quality of Quarter Vehicle Model by Using Mixed H2/H with Pole-Placement  

作　　者：A. S. Emam A. M. Abdel Ghany 

机构地区：[1]Automotive and Tractors Engineering Department, Faculty of Engineering, Helwan University, Cairo, Egypt [2]Electrical Power and Machine Department, Faculty of Engineering, Helwan University, Cairo, Egypt

出　　处：《Engineering（科研）》2012年第2期126-132,共7页工程（英文）（1947-3931）

摘　　要：The aim of the present work is to illustrate the application of mixed H2/H∞ control theory with Pole-Placement in de- signing controller for semi-active suspension system. It is well known that the ride comfort is improved by reducing vehicle body acceleration generated by road disturbance. In order to study this phenomenon, Two Degrees of Freedom (DOF) in state space vehicle model was built in. However, the role of H is to minimize the disturbance effect on the output while H2 is used to improve the input of controller. Linear Matrix Inequality (LMI) technique is used to calculate the dynamic controller parameters. The simulation results show that the H2 and H techniques can effectively control the vibration of vehicle system where the reduction of suspension working space, dynamic tire load and body acceleration. Moreover, the simulation results show that the (RMS) of suspension working space was reduced by 44.5%, body acceleration and dynamic tire load are reduced by 18.5% and 20% respectively.The aim of the present work is to illustrate the application of mixed H2/H∞ control theory with Pole-Placement in de- signing controller for semi-active suspension system. It is well known that the ride comfort is improved by reducing vehicle body acceleration generated by road disturbance. In order to study this phenomenon, Two Degrees of Freedom (DOF) in state space vehicle model was built in. However, the role of H is to minimize the disturbance effect on the output while H2 is used to improve the input of controller. Linear Matrix Inequality (LMI) technique is used to calculate the dynamic controller parameters. The simulation results show that the H2 and H techniques can effectively control the vibration of vehicle system where the reduction of suspension working space, dynamic tire load and body acceleration. Moreover, the simulation results show that the (RMS) of suspension working space was reduced by 44.5%, body acceleration and dynamic tire load are reduced by 18.5% and 20% respectively.

关 键 词：MIXED H2/H∞ Semi Active Suspension POLE-PLACEMENT RIDE Quality Linear Matrix INEQUALITY (LMI) 

分 类 号：R73[医药卫生—肿瘤]