轿车等速驱动轴传动效率的试验研究

针对国产某型轿车采用的两种等速驱动轴,利用试验方法对该驱动轴的传动效率进行了试验研究,探讨了万向节夹角、使用工况和转速等对其传动效率的影响.试验结果表明,驱动轴的传动效率随万向节夹角的增大而减小,而且两侧万向节夹角相等时驱动轴整体的传动效率会有所改善;挡位(转速和转矩)对驱动轴传动效率的影响不明显,但是在大夹角状态下,传动效率随挡位升高有增大趋势;在外侧万向节夹角较大的条件下,如果转矩不变而转速降低,则传动效率明显减小.     

激冷铸造轿车凸轮轴的材质试验与研究

本文针对富康轿车凸轮轴的技术要求，根据化学成分、孕育后白口控制、过热温度、保温时间等对材质影响的试验结果，确定了不加合金元素激冷铸造富康轿车凸轮轴的化学成分及其工艺参数。     

富康轿车随动悬架中横向稳定杆的设计分析

对富康轿车随动悬架结构中横向稳定杆的设计进行了分析，讨论了横向稳定杆结构对于富康轿车行驶稳定性的影响。     

富康液化石油气—汽油双燃料轿车的开发研究

扼要介绍了富康LPG-汽油双燃料轿车的结构及工作原理，通过整车性能试验，对富康LPG-汽油双燃料车分别燃用LPG（Liquid Petroleum Gas）的汽油时的动力性、经济性、排放性能试验数据进行了对比分析。     

用加氢基础油研制富康轿车升级换代油

为满足富康轿车的使用性能，用APIⅢ类加氢基础油研制了南海牌10W 40SJ／A2—92(2)汽油机油，并对其进行了各项理化试验、模拟性能评定及发动机台架试验。结果表明，该油各考核项目均符合神龙汽车有限公司有关指标要求。8万km的道路试验表明所有考核项目均符合富康轿车升级换代油的规格指标要求。     

轿车用滚型车轮钢的应用研究

对与宝钢合作开发的轿车用滚型车轮钢板进行了有关性能试验，摸索出了富康轿车车轮的成型工艺，生产的车轮通过了武汉神龙汽车公司的全面考核，实现了车轮国产化目标。     

需要重新认识的上海汽配市场（十八）——缺乏竞争的捷达,富康轿车配件市场

富康轿车配件市场的现状 据上海权威部门统计1995年底上海地区富康轿车的保有量为510辆,虽然近年来上海机动车保有量增长率每年达10％以上,可上海街头仍一如既往很难寻觅到富康轿车那俏丽的踪影。据调查目前上海地区富康轿车相对集中的几家用车单位为:上海振华出租汽车公司第10车队和富康出租汽车公司等几家出租汽车公司,而且在用的富康轿车尚不足150辆,占上海出租汽车市场的份额约为0.357％。由于受上海出租行业管理条例“人货必须分     

富康化油器轿车的排放污染控制

目前全国富康轿车的保有量达到20余万辆(化油器车7万多辆，电喷车13万多辆)，如果不解决好大量在用富康轿车的排放问题，势必影响到我们的生存环境和富康轿车的声誉。     

轿车贸易中的地方保护主义是没有出路的

去年10月,南方某市以政府名义下发“通告”,宣布更新替代菲亚特出租车的车型为“富康轿车以上档次(含富康轿车)的国产轿车”。为鼓励出租车业主购买富康轿车,特向买主提     

富康轿车国产零部件质量的生产验证模式

富康轿车零部件的国产化除按ＩＳＯ９００１质量体系标准建立了有效的质量管理体系外，还借了法国汽车零部件供应商质量管理的模式。富康轿车国产件质量生产验证模式包括零部件技师的验审分级、量产前预批量模式 种模式的实施，使富康轿车国产化零部件和整车质量稳定可靠。     

富康轿车空调制冷系统的控制原理

介绍富康轿车空调制冷系统的压缩机控制、冷却风扇控制、安全保护控制及水温控制原理和特点。     

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。     

富康轿车发动机电控系统故障诊断

详细介绍采用故障代码查询法、技术参数检测判断故障法、查故障征兆一览表法及故障征兆模拟法,对富康轿车发动机电控系统故障进行诊断。     

客车车身传统电器的网络化设计

详细介绍对客车车身传统电器进行的网络化改造。客车车身负载众多且对网络的实时性要求不高,故采用LIN总线技术,将整个网络分成了5个节点,本文给出了网络结构设计以及LIN网络通讯设计,使用开关监测芯片MC33972管理众多的开关量输入。     

国产新型轿车空气动力特性的三维仿真计算

本文应用计算流体动力学（ＣＦＤ）方法处理汽车的三维绕流问题，采用有限体积法求解三维定常不可压Ｎ－Ｓ方程，给出了某国产新型轿车的计算结果，得到了其三维速度场、压力场和六分量气动力，并与实车风洞试验结果进行了对比，结果吻合较好。     

汽车空调系统降温性能的模拟计算

由于轿车车室内供空调安装的空间有限，所以合理选择空调大小具有重要意义。通过对轿车热负荷和空调系统的模拟计算，以及对轿车空调系统降温特性的计算和分析，为轿车空调设备的选配提供了一种理论根据和行之有效的手段。     

Characteristic analysis of vehicle rollover accidents: Rollover scenarios and prediction/warning

Rollover accidents are relatively more serious than other types of accidents, so it is important that the safety device functions appropriately. For the safety device to work correctly, a rollover criteria system which can predict a rollover is needed. To Figure out the characteristics of rollover, NASS-CDS was used to statistically analyze the seriousness of accident and passenger injuries in various rollover situations. Typical scenarios for each rollover type were established by referring to the test criteria of NHTSA. Rollovers can be largely categorized into tripped or un-tripped rollover depending on the situation, but there is no method for estimating the velocity of the car in each situation. This paper suggests methods for estimating the car velocity through finding the relationship between car velocity and quarter turns by performing repetitive simulation in established typical scenarios. Additionally, simple physical models for rollover were developed and each model was analyzed to find the rollover criteria for each type. The rollover criteria were verified by simulating various rollover situations. The rollover criteria suggested would be helpful in predicting a rollover and appropriately activating the safety device.     

Actively translating a rear diffuser device for the aerodynamic drag reduction of a passenger car

This research aims to develop an actively translating rear diffuser device to reduce the aerodynamic drag experienced by passenger cars. One of the features of the device is that it is ordinarily hidden under the rear bumper but slips out backward only under high-speed driving conditions. In this study, a movable arc-shaped semi-diffuser device, round in form, is designed to maintain the streamlined automobile??s rear underbody configuration. The device is installed in the rear bumper section of a passenger car. Seven types of rear diffuser devices whose positions and protrusive lengths and widths are different (with the basic shape being identical) were installed, and Computational Fluid Dynamics (CFD) analyses were performed under moving ground and rotating wheel conditions. The main purpose of this study is to explain the aerodynamic drag reduction mechanism of a passenger car cruising at high speed via an actively translating rear diffuser device. The base pressure of the passenger car is increased by deploying the rear diffuser device, which then prevents the low-pressure air coming through the underbody from directly soaring up to the rear surface of the trunk. At the same time, the device generates a diffusing process that lowers the velocity but raises the pressure of the underbody flow, bringing about aerodynamic drag reduction. Finally, the automobile??s aerodynamic drag is reduced by an average of more than 4%, which helps to improve the constant speed fuel efficiency by approximately 2% at a range of driving speeds exceeding 70 km/h.     

一种侧撞试验台的方案设计

侧撞试验台是一种新近出现的成本较低、研究车辆在侧面碰撞中车门侧面结构耐撞性及侧面内饰和侧面安全气囊对乘员保护作用的部件试验台。本文研究了实车侧面碰撞中车门的速度特征以及乘员的伤害情况,并在此基础上提出了一套结构简单、成本较低、可以实现的侧撞试验台方案,对台车进行了结构设计,最后在动力学和运动学上验证了该方案的可行性。     

马自达6轿车故障排除四例

介绍了马自达6轿车发动机怠速抖动、发动机后部异响、制动灯熔丝常断及安全气囊报警灯常亮等4种常见故障现象,论述了故障检测、故障分析与排除过程。指出,在对故障进行检修时必须依据相关资料了解其结构、工作原理及有关电路图等,从而利用检测仪器诊断并进行故障的分析与排除。