SEMI-ACTIVE CONTROL OF VEHICLE SUSPENSION WITH MAGNETO-RHEOLOGICAL DAMPERS PARTⅡ——EVALUATION OF SUSPENSION PERFORMANCE  

作　　者：WANG Enrong YING Liang WANG Wanjun RAKHEJA Subhash SU Chunyi 

机构地区：[1]School of Electric and Automation Engineering, Nanjing Normal University, Nanjing 210042, China [2]Department of Mechanical and Industrial Engineering, Concordia University, Montreal H3G 1M8, Canada

出　　处：《Chinese Journal of Mechanical Engineering》2008年第2期45-52,共8页中国机械工程学报（英文版）

基　　金：Senior Visiting Scholarship of Chinese Scholarship Council (No.20H05002);Jiangsu Provincial Natural Science Foundation of Education Commission of China (No.03KJB510072);Jiangsu Provincial Six Categories of Summit Talents of China (No.2OO6194)

摘　　要：The design and analysis of an intelligent vehicle suspension with MR dampers should address hybrid semi-active control goals, such as rejection of current-switching discontinuity and MR-damper hysteresis, asymmetric damping from the symmetric MR-damper design, robustness on the vehicle operation parameter uncertainties and consideration of essential multiple suspension goals. Following the proposed skyhook-based asymmetric semi-active controller （Part I ） for achieving the above goals, herein, a set of suspension performance measures and three kinds of varying amplitude harmonic, rounded pulse and really measured random excitations are systematically defined, and the sensitivity of quarter-vehicle MR-suspension performance to variations in operating conditions is thoroughly analyzed. The results illustrate that the proposed skyhook-based semi-active MR-suspension in the asymmetric mode yields relatively superior dynamic responses to meet the multiple suspension performances of ride, rattle space, road-holding and dynamic tire force transmitted to the pavement, and has desirable robustness on variations in operating conditions of vehicle load and speed and the road roughness.The design and analysis of an intelligent vehicle suspension with MR dampers should address hybrid semi-active control goals, such as rejection of current-switching discontinuity and MR-damper hysteresis, asymmetric damping from the symmetric MR-damper design, robustness on the vehicle operation parameter uncertainties and consideration of essential multiple suspension goals. Following the proposed skyhook-based asymmetric semi-active controller （Part I ） for achieving the above goals, herein, a set of suspension performance measures and three kinds of varying amplitude harmonic, rounded pulse and really measured random excitations are systematically defined, and the sensitivity of quarter-vehicle MR-suspension performance to variations in operating conditions is thoroughly analyzed. The results illustrate that the proposed skyhook-based semi-active MR-suspension in the asymmetric mode yields relatively superior dynamic responses to meet the multiple suspension performances of ride, rattle space, road-holding and dynamic tire force transmitted to the pavement, and has desirable robustness on variations in operating conditions of vehicle load and speed and the road roughness.

关 键 词：Magneto-rheological damper Asymmetric damping Semi-active control Vehicle suspension Multi-objective performance 

分 类 号：TH13[机械工程—机械制造及自动化]