This article analyses the braking problems in urban rai transit emus , on the basis of the following aspects : braking power ; comprehensive braking system ; adhesion and anti - skidding ; braking control system ; foundation braking system of the urban rail transit emus , puts forward assumption for foundation braking system and calculates some braking parameters 摘要从城市轨道交通电动车组的制动功率、综合制动系统、粘著和防滑、制动控制系统、基础制动系统等5个方面，对我国研制城市轨道交通电动车组在制动技术方面进行了分析，对其基础制动系统提出了设想，并对一些制动参数进行了计算。
Under the guidance of locomotive and car dynamics theory , the model on the basis of " pioneer " emu ' s dynamic bogie is developed . using program nucars and orthogonal test method , parameters of suspension and structure are optimized comprehensively considering a variety aspects of the emu ' s dynamics performance on the basis of the actual running conditions , such as running speed , track radius , cant and track irregularities etc , in order to meet the needs of high speed running 本文在机车车辆动力学理论研究的指导下，在“先锋号”电动车组动力转向架的基础上，根据实际应用条件包括运行速度、线路半径、超高以及线路不平顺等，运用nucars软件结合正交试验法进行了多悬挂参数和结构参数方案的动力学计算，综合考虑机车车辆各方面的动力学性能，经过协调后优化该转向架的结构参数和悬挂参数，使之满足高速运行的需要。
In this thesis , the principle of increasing speed of the tilting passenger car is introduced , the scheme of tilting emu is put forward , the characteristic of bogie of tilting car abroad are introduced . based on successful experience of using the tilting car abroad , a bogie that is suitable to tilting car in our country is put forward 本文首先介绍了摆式客车提速的机理，提出摆式电动车组的基本方案，并简要介绍了国外几种摆式列车转向架的结构型式，根据国外成功运营经验，提出我国高速摆式客车转向架宜采用一系柔性定位的转向架的模式。
The results of simulation show that every dynamics performance of trailer meet the need of what references and design required to the new train . the ride index of trailer is compared when running on the railway whose grade is higher and on the railway whose grade is low . it shows that the ride index of trailer can meet the need of design when running on the railway whose grade is high and the ride index is worse and the numerical value exceed what reference required to new train when running on the railway whose grade is lower 比较了拖车在等级较高的线路上和在等级较低的线路上运行时的平稳性能，指出研制的摆式电动车组拖车在等级较高的线路上运行时，平稳性满足有关标准对于新造车的要求，在等级较低的线路上运行，平稳性能恶化，超出有关标准对于新造车的要求。
