为了充分发挥地铁列车永磁牵引系统节能的优势,降低列车制动控制的复杂度、保证其可靠性,文章以长沙轨道交通5号线列车为例,设计了一种基于永磁牵引系统的地铁列车空气制动力分配方案:当列车单轴、双轴或不同车三根轴及以上电制动故障时,保留故障车其他轴的电制动力,不足的制动力由拖车上的空气制动力平均分配;当列车同车三根轴及以上电制动故障时,切除故障车的电制动力,不足的制动力由拖车和故障车上的空气制动力平均分配.

当前中低速磁浮列车液压制动系统采用以制动液压力为控制目标的制动控制策略,在恶劣工况时,列车的制动减速度和制动距离等易受到影响.本文提出以制动减速度为控制目标的闭环制动控制策略,可以改善磁浮列车在恶劣运行工况时的制动能力,以及磁浮列车的舒适性.

介绍了储能式六轴铰接式轻轨列车制动系统的系统组成,阐述了液压制动系统功能实现原理,分析了该制动系统的功能和技术性能.经型式试验验证,该制动系统的满足相关标准的要求.产品实际应用经验表明,该制动系统设计合理、运行稳定,能满足储能式六轴铰接式轻轨列车的使用要求.

某城际动车组在正线运行时因黏着降低出现滑行,施加紧急制动停车后,04车3,4轴的5,6,7,8位轮对踏面出现不同程度擦伤.文章详细分析了轮对擦伤的原因并实现了故障复现,确定轮对擦伤原因为车组在持续严重滑行时,04车制动系统仅能实现1次持续排风功能,使本架参考速度无法正常恢复到车组速度,导致防滑功效降低.针对上述问题,提出改善车组在严重滑行时的持续排风功能和缩短电制动切除时间的解决方案,并通过了试验验证.

文章介绍了一种城际动车组智能风源的结构组成及特点,并搭建了地面试验台,对空压机以及干燥器等重要参数进行异常模拟,验证智能控制单元的预警准确率.经500小时的运行试验,模拟10次故障,结果预警准确率达到100％,显示智能风源达到了设计目标.

近些年来,随着城市轨道交通行业的迅速发展,轨道交通车辆朝着高速的方向发展.因此,盘型制动器和踏面清扫装置的运用越来越广泛.踏面清扫装置可以帮助清除车轮与轨面之间的杂质,增强黏着力.本文结合控制工程理论,以轨道交通车辆踏面清扫系统的一次故障为例进行分析,对该系统提出优化建议.

结合跨座式单轨车辆全程高架的线路特点,文章介绍了对故障车的停放制动远程缓解方案,同时,针对线路坡道较大的情况,对列车的救援制动进行了优化设计.

介绍了跨座式单轨车辆制动系统组成以及选型依据,同时,根据跨座式单轨车辆自身特点,提出了一系列优化设计.

文章简要介绍了低地板有轨电车液压制动系统的组成、结构及控制原理,并描述了组成液压制动系统的主要设备的功能、组成、结构及工作原理.通过对目前国外低地板有轨电车液压制动系统的两种典型选型方案的阐述及分析,提出了低地板有轨电车液压制动系统的选型建议.

For ensuring the operation safety, emergency brake deceleration rate of metro vehicles under low-adhesion condition was studied. Firstly, the requirements about operation under the worst condition, regulated by related standards, were presented. Secondly, the principle of braking and the influence of adhesion was described. Thirdly, the research results on the adhesion at home and abroad were introduced. At last, the variation of emergency brake deceleration rate under low-adhesion condition was studied through theoretical calculation and line test. The test results are helpful for the operators to develop the safety measures when the vehicles are operated under low-adhesion condition.

The hydraulic braking system is usually used as the low floor of energy storage modern tram,at the bottom of which there is limited equipment area. This paper expounds the main components and functions of brake system for energy storage modern tram. It also analyzes the construction scheme and function design characteristics of the brake system.

This paper presents the pipe diagram and system composition of hydraulic brake system,and analyses the design of pipe according to a series of test dates. Meanwhile,it expounds the procedure and method of hydraulic brake system oil filling test detailedly.

介绍了制动粘着系数、紧急制动率以及防滑效率等概念,并对非正常工况下的紧急制动率做了相应的描述和计算,最后对低粘着条件下的地铁车辆运行提出了建议.

设计了土耳其伊兹密尔轻轨车辆项目的制动系统,简述了风源系统组成及管理,阐明了电空制动控制原理及制动力分配机制,介绍了基础制动装置。

从城轨列车故障时各轴减速度的分配方式对列车制动效果的影响入手,结合现有列车制动模式,对列车复合制动进行研究,提出平均减速度的制动力方式。

This paper presents main functions and principles of the domestic bogie-controlling brake system and analyzes the work methods inside BCU.This domestic bogie-controlling brake system has been implemented on GZML3E metro vehicles successfully for the first time.

The utility model discloses an automatic conversion type pantograph lifting system for urban rail vehicles. The pantograph lifting system comprises a pedal pantograph lifting pipeline and an electric control pantograph lifting pipeline, wherein the pedal pantograph lifting pipeline comprises a manual valve communicated with a pedal pump; the electric control pantograph lifting pipeline comprises an electric control valve communicated with a main pipe wind source; the manual control valve is communicated with a pantograph via a pneumatic control reversing valve and one end of a shuttle valve; the electric control valve is communicated with the pantograph via a one-way sequence valve and the other end of the shuttle valve; the output end of the one-way sequence valve is communicated with a control pressure cavity of the pneumatic control reversing valve; and the opening pressure of the one-way sequence valve is higher than the pantograph lifting working pressure of the pantograph. The manual valve, the pneumatic control reversing valve and the shuttle valve enables the air pressure generated by the pedal pump to be used for pantograph lifting, and a button on the manual valve is only used for artificial pantograph lowering; and the electric control valve, the one-way sequence valve, the shuttle valve and the pneumatic control reversing valve enables the air pressure of the main pipe wind source under electric control to be used for pantograph lifting. The automatic conversion type pantograph lifting system realizes automatic conversion from pedal pantograph lifting to electric control pantograph lifting, and is convenient to operate, has safety and reliabllity, and is easy to implement and popularize.

Based on a research of the conversion of brake command,the confirmation of braking increase rate,the braking capacity,the braking point of the straight brake in metro vehicles and the automatic brake of main line trains,this paper attempts to solve the matching problem between brake command classification and brake performance of two brake systems,that means metro vehicles can receive and execute the command sent by main line trains,and keep the braking retardation of metro vehicles consistent with the retardation of goods trains.So the metro vehicles can interact basically with the main line trains.

简要介绍了深圳地铁1号线续建工程车辆制动系统。阐述了城市轨道交通车辆制动管理的原则及主要内容。结合车辆制动特性分析说明了深圳地铁1号线续建工程的车辆混合制动模式及制动力分配方案,并分析说明了深圳地铁1号线续建工程车辆停车制动管理的特点。介绍了深圳地铁1号线续建工程车辆制动控制原理及网络结构,结合制动控制原理对深圳地铁1号线续建工程车辆制动管理实现方式进行了分析说明。

According to the working principle and use requirement of rubber hermetic tube fitting,this paper analyzed the reason of pneumatic and brake pipe rushing out on type HXD1 locomotive.The rubber hermetic tube fitting is improved on the structure.The suggestion of replacing rubber hermetic tube fitting with EO tube fitting is given.