Simulation On Anti-Sliding Control Of Emu Braking System

The technology and equipment level of locomotive and vehicle in our country has entered a rapid development stage, that is promoted by great-leap-forward development in the situation of the railway. We have joint ventures and researched to produce 200 km/h EMU and above EMU with foreign companies. From 2006 to 2016, there will be 1,000 EMU off the assembly line and put into operation, and this will play a tremendous role to promote to China's railway passenger transport market. EMU will become the main means of delivery for China's railway passenger transport. With the continuous increasing of traffic speed, high-speed put forward newer and higher requirement to braking system and anti-sliding control system of EMU. It has become an urgent mission to develop a new generation anti-sliding control system. And the anti-sliding control characteristics analysis of the EMU braking system is a assessment to the capability of EMU braking system.This paper is based on the analysis of the EMU braking system at home and abroad, focusing on the anti-sliding control characteristics of CRH2 EMU braking system. The speed of the vehicle and speed of the sliding shaft is detected in the process of anti-sliding control by using simulink simulation software, and according the criterion to detect whether the sliding has occurred. When detecting the shaft is sliding, control the anti-sliding valve action for stage exhaust to the brake cylinder. When the adhesive after recovery, inflate the brake cylinder again, that is effective use the adhesive. It is both reached the requirement of anti-sliding, and also allows the adhesive between wheel and rail has been fully used, shorten the braking distance.Compared with foreign railway developed countries, our country in the development of EMU braking system is lagging behind the state, especially in the anti-sliding field. Because our country has less empirical date in train braking process, most of the reference data in this paper are based on the formula and data from Japan's experience. So by studying and analysis, digest, assimilate domestic and foreign anti-sliding control system design ideas of EMU, it is very important significance to research anti-sliding control system of EMU for china's national conditions.