奔驰轿车空气流量传感器的故障检修

空气流量传感器是发动机电子燃油喷射系统中的电气元件之一。本文阐述了热丝式空气流量传感器的工作原理,并结合笔者实际工作中的检测经验,对奔驰W140底盘车型配置的热丝式空气流量传感器所引发的发动机故障实例,总结了一些行之有效的处理方法。     

Utilisation of optimisation solutions to control active suspension for decreased braking distance

This work deals with how to utilise active suspension on individual vehicle wheels in order to improve the vehicle performance during straight-line braking. Through numerical optimisation, solutions have been found as regards how active suspension should be controlled and coordinated with friction brakes to shorten the braking distance. The results show that, for the studied vehicle, the braking distance can be shortened by more than 1?m when braking from 100?km/h. The applicability of these results is studied by investigating the approach for different vehicle speeds and actuator stroke limitations. It is shown that substantial improvements in the braking distance can also be found for lower velocities, and that the actuator strokes are an important parameter. To investigate the potential of implementing these findings in a real vehicle, a validated detailed vehicle model equipped with active struts is analysed. Simplified control laws, appropriate for on-board implementation and based on knowledge of the optimised solution, are proposed and evaluated. The results show that substantial improvements of the braking ability, and thus safety, can be made using this simplified approach. Particle model simulations have been made to explain the underlying physical mechanisms and limitations of the approach. These results provide valuable guidance on how active suspension can be used to achieve significant improvements in vehicle performance with reasonable complexity and energy consumption.     

影响客车车架使用寿命的因素

分析了影响客车车架使用寿命的几种因素，并强调了研究这些因素的重要性。     

路虎着车时仪表报警故障排除

本文介绍一台路虎发现者3(Land Rover Discovery 3)由于维修操作不当导致的仪表报警提示故障,根据专用诊断仪再结合维修手册资料和对该车系统控制方式的分析,从而快速查找到故障原因,排除了故障,避免了盲目的拆检操作。     

CA6SH电喷燃气发动机及其在客车底盘上的应用

主要介绍一汽自主研发的CA6SH多点电喷燃气发动机的主要特点及其在CA6980D85解放客车底盘上的应用情况。     

SX6734GE84型发动机横置底盘的方案确定

介绍发动机横置的几种技术途径.通过SX6734GE84型底盘的方案确定做举例说明.     

自卸车底盘设计特点分析

根据自卸车使用工况,分析了自卸车底盘的主要性能和设计特点,提出自卸车底盘应具备良好的动力性、承载性能、路况适应性、改装适应性、地区及功能适应性等,并分析保证上述性能的底盘匹配及相应的系统设计特点。     

无人驾驶电动游览车底盘集成控制研究

介绍了具有自动寻迹行驶和遥控行驶2种模式的无人驾驶电动游览车,该车采用光电传感器自动辨识行驶路径,自动完成寻迹行驶,且在自主行驶过程中通过超声波传感器探测技术自动检测障碍物信息,具有防碰撞功能,在底盘控制上实现了无人驾驶技术、轮毂电机驱动技术和线控转向技术以及防碰撞技术等的集成控制,对于实现车辆的智能驾驶具有重要意义。     

前卸式砼搅拌运输车底盘市场前景及概念设计

通过对GB1589-2004等法规的政策导向及美国市场发展趋势的研究,分析了大容量混凝土搅拌车的发展方向,介绍了前卸式混凝土搅拌车专用底盘的概念设计.     

抗侧滚吊杆刚度对悬浮架静浮能力的影响

文章着重分析了中低速磁浮车辆起浮前后抗侧滚片梁吊杆的受力情况,并结合在单模块悬浮架试验台上进行的不同刚度吊杆对比试验,对比分析了刚性吊杆和弹性吊杆对悬浮架静态起浮能力的影响．为抗侧滚吊杆的设计与改进提供了建议与参考。