ATS车次号自动识别系统解决方案

针对重庆轨道交通2号线ATS车次号系统需要人工输入和校核的问题,引入了ATS车次号自动识别系统,并对车次号追踪识别程序进行了优化,减轻了调度员的工作量,同时也提高了整个系统的准确性和稳定性。     

ZPW-2000R轨道电路分割点中继功能的实现方案

针对ZPW-2000R无绝缘移频自动闭塞系统轨道电路分割点中继功能的实现方案进行了详细的阐述,并在实际中进行了很好的结合运用。     

信号设备综合测试台的研制

介绍了信号设备综合测试台的研制背景、设计目标、设计思路、系统结构及运用效果。该测试台能测试目前管内部分的信号设备和器材,且增加了自动存储测试数据的功能,解决了原检修测试手段功能单一的问题,改变了传统人工记录数据的工作方式,提高了检修工作效率。     

上海通用别克4T65-E型自动变速器维修要点

上海通用在别克GL、GLX和新世纪3种车型上均采用4T65-E型电控自动变速器，该电控自动变速器有4个前进挡和1个倒挡。介绍了该自动变速器的故障代码，要提取故障代码和故障数据，必须使用SCAN诊断仪。     

汽油／LPG双燃料轿车双点火提前角自动切换装置

汽油车改装成汽油／LPG双燃料车后，由于汽油和LPG的物化性质和燃烧特性有较大的差别，因而使用同一个点火提前角是不合理的。本文以桑 塔纳LX型轿车发动机为对象，通过台 试验得出燃用LPG时的最佳点火提前角，在原车点火系统的基础上，研制出一套能根据不同的燃料自动切换点火提前角的点火装置，该装置在台架和整车道路试验中都获得较好的结果。     

稳定土拌和机液压传动系统的研究

本文针对实际施工中稳定土拌和机需要传动系统具有自动功率调节特性和过载安全保护特性的问题,提出了液压传动系统自动功率调节特性与发动机转速相关和过载安全保护特性与转子液压系统工作压力相关的设计理论,并结合稳定土拌和机作业工况进行了自动功率调节特性的分析和计算,完成了稳定土拌和机液压传动系统的设计.该系统在国产 WB-230型轮胎式稳定土拌和机上得到成功应用,收到良好的效果.     

Simulation model of an electrohydraulic-actuated double-clutch transmission vehicle: modelling and system design

Automated and manual transmissions are the main link between engine and powertrain. The technical term when the transmission provides the desired torque during all possible driving conditions is denoted as powertrain matching. Recent developments in the last years show that double-clutch-transmissions (DCTs) are a reasonable compromise in terms of production costs, shifting quality, drivability and fuel efficiency. They have several advantages compared to other automatic transmissions (AT). Most DCTs nowadays consist of a hydraulic actuation control unit, which controls the clutches of the gearbox in order to induce a desired drivetrain torque into the driveline. The main functions of hydraulic systems are manifold: they initiate gear shifts, they provide sufficient oil for lubrication and they control the shift quality by suitably providing a desired oil flow or pressure for the clutch actuation. In this paper, a mathematical model of a passenger car equipped with a DCT is presented. The objective of this contribution is to get an increased understanding for the dynamics of the hydraulic circuit and its coupling to the vehicle drivetrain. The simulation model consists of a hydraulic and a mechanical domain: the hydraulic actuation circuit is described by nonlinear differential equations and includes the dynamics of the line pressure and the proportional valve, as well as the influence of the pressure reducing valve, pipe resistances and accumulator dynamics. The drivetrain with its gear ratios, moments of inertia, torsional stiffness of the rotating shafts and a simple longitudinal vehicle model represent the mechanical domain. The link between hydraulic and mechanical domain is given by the clutch, which combines hydraulic equations and Newton's laws. The presented mathematical model may not only be used as a simulation model for developing the transmission control software, it may also serve as a virtual layout for the design process phase. At the end of this contribution a parametric study shows the influence of the mechanical components, the accumulator and the temperature of the oil.     

CBTC制式下的ATS子系统研究

基于通信的列车控制系统（CBTC）给城市轨道交通信号制式带来了巨大的变化,而这种变化也对城轨信号系统的各个子系统均产生了影响;通过与传统轨道电路制式的信号系统进行比较,探讨了CBTC制式下ATS子系统的主要结构、功能以及特点。     

国家标准《自动轨道衡》修订分析

针对国家标准GB／T 11885—200x《自动轨道衡》的修订过程,给合与国际法制计量组织R106：2005《自动轨道衡》国际建议草案（1CD）的采标程度,分析了该修订稿与现行GB/T 11885-1999《自动轨道衡》的异同点。     

整流变压器接线组别及核相电压的确认

介绍了如何辨认地铁轻轨中常用的整流变压器的接线组别以及二十四脉波的整流原理,并且论述了一种较为简洁接线组别的测试方法。