奥迪无级变速器Multitronic简介

奥迪无级自动变速器Multitronic是目前投放市场的第一种扭矩传递能力达310N.m的无级自动变速器，该变速器按传动比连续变化原理工作，它兼顾了传统有级自动变速器驾乘方便，舒适和手动变速器动力性好，经济好的特点，对Multitronhic的结构特点，主要部件和行驶控制系统进行了简单介绍。     

Car-free city centres

In a car-free city centre car traffic is limited by an area-wide ban to its functionally necessary share. This usually includes delivery and service vehicles and residents' cars. The lock-out of unnecessary car traffic must not be an isolated measure, but part of a pulland-push approach. The most important supporting measure concerns the provision of attractive public transport services. Case studies from Bologna, Lubeck, Aachen, York, and Nuremburg are reported.     

神龙富康轿车电控燃油喷射系统的故障检修

介绍神龙富康轿车电控燃油喷射系统的基本组成、工作原理及故障检修。     

柴油轿车将成为未来轿车的主流车型

本文主要分析了柴油轿车的市场情况,通过比较柴油轿车与汽油轿车,分析我国柴油轿车发展所面临的市场环境以及轿车柴油机的未来发展,说明柴油发动机将成为轿车的主要动力。     

Car ownership and attitudes towards transport modes for shopping purposes in Singapore

The heightening of issues, such as sustainable development and environmental pollution have resulted in many governments pursuing transport policies which aim to promote the use of public transport modes, including walking, as well as discourage the use of the car for various activities, such as shopping, work, recreation, etc. However, little has been done on understanding shoppers' perceptions of transport modes for shopping purposes. Particularly, not much research has been done on examining the attitudes of car owners and non-car owners towards transport modes for shopping purposes. Using Singapore as a study area, this study has attempted to analyse car owners and non-car owners' perceptions of the different types of transport modes (i.e., car, taxi, bus, mass rapid transit and walk) in their shopping trips. The research found that each transport mode has its own unique set of attributes. In addition, car owners and non-car owners portray different attitudes towards the public transport modes and the car. This calls for different strategies for these two groups of shoppers in encouraging them to use the public transport modes and restrain the use of the car.     

君威轿车本土化快速自主开发及其关键技术

泛亚汽车技术中心在多年引进消化国际先进技术基础上,以中高级轿车产品为突破点,集中对市场分析与本土化产品定义、产品平台的再次开发、多品种混线生产与垂直换型、数字化设计与实验分析、产品开发过程的全球协同管珲等5个方而的火键技术进行了研究和开发,形成了完整的中高级轿车本土化快速自主开发平台、技术能力和管理体系,并成功应用到君威系列轿车开发中,使合资企业在自主开发上开拓出新的途径。     

乘用车侧门安全性试验台的研制

介绍了乘用车侧门安全性试验台的工作原理、技术性能及总体设计方案。针对该试验台在设计时存在的技术问题进行了阐述。所设计的试验台具备多种控制方法和结构安装参数可调,不但涵盖了侧门强度测试的功能,还可用于其它零部件的试验。该试验台能实时显示被测车辆变形所吸收的能量等信息,采用图象三维测量法来测量车身刚度（变形矢量）。     

轿车底盘三维参数化总布置设计系统集成研究

介绍了起始于设计需求和技术,包括选型、匹配、性能计算和评估、三维参数化总布置、干涉检查、运动校核以及性能仿真等全过程轿车底盘设计系统集成的开发思路。阐述了基于Pro／E二次开发建立轿车底盘三维参数化总布置设计系统的开发过程,详细描述了该系统开发的基本原理和关键技术。     

轿车地毯热力塑性成形性能的尺寸效应研究

以单向拉伸试验研究了轿车地毯不同宽度尺寸试样的热力塑性成形性能,试验发现轿车地毯材料的塑性成形性能具有尺寸效应。分析了轿车地毯材料的强度、塑性和断裂功等成形性能受尺寸的影响程度。试验结果表明,宽度为50mm的试样可以作为轿车地毯材料基本力学性能测试的统一标准,能较稳定地反映轿车地毯的基本力学性能。     

Study on Performances of Car-following Models Induced by Motions of a Leading Car

IntroductionReasonably accurate mathematical modeling oftraffic engineering is needed not only for better un-derstanding of the collective behavior of traffic,but also for analyzing flow conditions, designingefficient control strategies, and etc[1]. For the pastfew decades, many researchers made studies of thissubject and a wide range of traffic flow theoriesand models have been developed. According to thelevel-of-detail with which the traffic flow is de-scribed, these traffic models were clas…