Design Of Driving Simulation Platform For High Speed Train Based On TCN

The high speed train has developed rapidly in our country recently, but some key technology such as driving and controlling system were imported from abroad, it limited the growth of domestic high speed train development. The traditional research method based on real train can’t satisfy the complex requirement of high speed train, thus a simulation platform can be an effect way to reflect the real condition for a running train on the premise of satisfying all the requirements, and it can also simulate some extreme dangerous situation that the traditional method can’t do. Therefore, carry on a research of simulation driving platform is of great significance. This paper works around this issue.The paper summarizes the general development of high speed train in and abroad and the Train Communication Network(TCN), and a structural design scheme which aims to simulate the driving platform is proposed based on the China Railway High-speed3(CRH3) train. TCN is used to communicate in the platform, it can transmit the locomotive engineer’control signal exactly, feedback the status information of all equipment and operational data on the train. The research for all subsystems function and data exchanges among them are based on the simulation platform. The main job in this paper summarizes as follow. First, this paper gives an overview analysis of the TCN. and a detailed analysis of the Multiple Vehicle Bus (MVB) and Wired Train Bus (WTB). Second, a general structural of the driving simulation platform is given based on deep research of a high speed train, and the key-function is realized by several subsystems, and it satisfy the safety, standardization and compatibility request of high speed train, the subsystem includes Central Control Unit (CCU) subsystem. Traction Control Unit (TCU) subsystem, Door Control Unit (DCU) subsystem, Intelligent Terminal for Peripheral Interfacing (KLIP); the hardware and software are realized after carrying on introducing, analysis and investigation into all subsystems. Third, the Interface, which includes Man Machine Interface (MMI) and train speed monitor interface, on the driving simulation platform is achieved by Qt software, the train speed monitor interface is designed refer to train monitor equipment LKJ2000. In addition, a visual display simulator is introduced into the platform to make it more real, and make the man machine interaction much more significant.Result shows that all subsystems performs stable, every set target in the test is achieved, and the platform has strong expandability, lays a solid foundation for further research on the train subsystems.