Research And Design Of Practical Training Device For Electric Locomotive Braking System

The braking system is the key component of the locomotive and the indispensable device for the safety driving.The original electric locomotive has installed the DK-1 electric air braking system,because it does not have the wireless reconnection function,which makes it difficult to guarantee the braking control of the trains on the train.Therefore,the frequency of the train breaking hook accident increases.Therefore,in recent years,the high power harmony electric locomotive developed in China has adopted a new generation of electric air braking system to meet the needs of the braking system performance of the main passenger and freight electric locomotive.However,the teaching and training of the braking system in the real locomotive is not very realistic,and the multimedia lacks the sense of reality,which can not be directly exposed and controlled.Therefore,based on the new generation of electro-pneumatic braking system,a semi-physical simulation system training device for electric locomotive braking system is designed,which is a feasible solution for the practical teaching and staff training of universities.This thesis selected the braking system installed by HXD3 electric locomotive in China as the reference to carry out the research and design of the practical training device,analyzes the working principle of the practical training device from the electric locomotive braking system,and designs the practical training device of electric locomotive braking system composed of three parts,including the teaching auxiliary module,the braking system simulation module and the network communication module.According to the requirements of the braking function,the simulation module of the braking system is designed according to the function of the brake,including the locomotive display module(LCDM),the electro-pneumatic control unit(EPCU),the intergrated processor module(IPM),the electronic brake valve(EBV)and the relay interface module(RIM),and the seven sub-modules of the control module,the individual control module,the equalizing air cylinder control module,the reconnect control module,the single slow control module,the train brake pipe control module,the locomotive brake cylinder control module and the standby module are designed in detail,the function and logic control requirements of the power and air control unit in the working conditions and the standby mode are analyzed and designed,and the hardware and software analysis and design of the control unit of the electrical and air control unit are designed.Finally,the basic functions of the electric locomotive brake system are verified by means of experiment.