A Report on the State-of-Affairs on “Application of Multibody Computer Codes to Vehicle System Dynamics”

This report gives a preview to a state-of-the-art paper and a special session which are devoted to the problem of the applicability of multibody computer codes to vehicle system dynamics. These activities were initiated at the 11th IAVSD Symposium 1989 in Kingston, CAN, followed by a workshop in Herbertov, CSR, and to be reported at the 12th IAVSD Symposium in Lyon, 1991. The concluding documentation will be a special issue of the VSD journal. The status of this report is what has been achieved up to May 1991.     

Robust Stability Analysis of LQG-Controlled Active Suspension with Model Uncertainty Using Structured Singular Value, μ, Method

This paper presents a systematic approach toward robust stability analysis of LQG-con trolled active suspension systems. To perform this task, the paper starts with a brief background information on LQG control, its relation to H₂ method, and showing how H₂ could be formulated to become the frequency domain equivalent of LQG. Then unstructured and structured uncertainties of active suspension are formulated. The paper continues with the definition of maximum singular values and structured singular values of a transfer function matrix. Using these definitions, the robust stability of an active suspension system in the presence of assumed parameter variations are analyzed. These steps are illustrated by means of a numerical example of an active suspension system.     

长安悦翔轿车电源／电器接线盒／搭铁点

长安悦翔轿车是重庆长安汽车有限责任公司于2009年3月18日推向市场的一款经济型中级轿车。进入市场以后，以时尚外观和极高的性价比，很快得到客户的一致好评，于5月28日在全国同步上市，是当前的紧销车型。目前推出市场的有舒适型、豪华型、尊贵型3款手动档车型，其配置如表1所示。     

长安悦翔发动机管理系统电路原理及故障诊断（续完）

6故障诊断 长安悦翔轿车的ECU有车载诊断系统。它能够时刻监控发动机与废气排放相关的传感器、执行器是否工作正常。来确保汽车排出的尾气符合环保法规。OBD系统一旦检测到与废气排放相关的零部件损坏。将通过组合仪表上的排放指示灯（故障指示灯）告知用户废气排放不合格，同时存储故障码，     

Active Controls in Ground Transportation — A Review of the State-of-the-Art and Future Potential

Active control systems offer significant functional advantages over passive systems; their introduction into production-line vehicles, however, is cautious and slow. This survey describes the recent progress in the analysis, design and technology of active controls in vehicles. It includes the state-of-the-art of their introduction into operation as well as their future potential in view of recent advances in technology and computer aided design strategies. The survey has been limited to suspensions for vehicles on roads and tracks.     

泰科纳Ticona——科学与塑料的聚合：访Ticona欧洲销售经理Mr.Carsten W．WOerner和中国区域总经理汪云鸿先生

来到泰科纳的展台，给人一种非常清晰、有条理的感觉，什么材料用于什么领域，长长的展板上写得清清楚楚。一般来讲，塑料物料的参展商一般会更多地注重展台的漂亮与否，然而泰科纳的展台在兼顾了美观大方的同时，更是旗帜鲜明地把自己的产品应用取向展示得一清二楚，令人眼前一亮，哪怕不懂塑料的人，来到这个展台，也会一目了然。 或许，这也是吸引我们采访泰科纳的原因？[编者按]     

车用发动机H201型化油器部分结构的改进

在Q492型发动机上，试验研究了H201型化油器怠速配剂和怠速调节螺钉结构等对发动机双怠速（怠速和高怠速）时排放的影响。试验结果表明，通过优选化油器怠速配剂和改进怠速调节螺钉结构等，可使发动机双怠速的排放污染物含量大幅度降低，其中，CO含量低于0．5％，HC含量低于500×10-6。