Electric-Pneumatic Braking System Technology Research For 200km/h Train

With the rapid growth of national economy, our country's railway industry has made rapid development. Kinds of higher vehicle speed put forward more and more strict requirement to braking system, which is one of the most critical device of vehicles. So the traditional air braking system can't meet need any more. All of high-speed vehicles have associated braking system, mainly applies air brake, cooperated with power brake, eddy current brake, electric magnet wheel brake, etc. This paper gives detailed expatiation and analysis of electric-pneumatic braking system based on 200km/h passenger train.This paper introduces some of the EMU vehicles in China and abroad, and introduces the situation of electric-pneumatic braking system. It amply describes the structure of braking system in several chapters, it also gives particular design of the critical control components, on the basis of the design makes three-dimensional modeling for critical parts, such as pneumatic counters, air dryer and brake control counters with CATIA software. The paper also analyses and compares the advantages and disadvantages for the approach of different transfer signals for the brake control system, and tables a proposal for the final choice. This paper also makes simulation and research for procession of dynamic and pure pneumatic united brake actual, calculate deceleration and brake distance. By analyzing the results of the simulation, suggest improvements for the beginning of the design parameters.This paper provides a very important theoretical data and valuable suggestions for the research of 200km/h passenger train braking system, provides the good models for the follow-up research and makes a solid base for function of this whole brake system.