Modeling and Implementation of EMU Traction System

With the improvement of the complexity of rail transit products and the development of intelligent level, the design of EMU traction system needs more effective demand analysis methods, more reliable modeling analysis methods, positive traceability design methods and high quality implementation forms. Taking the traction system of EMU as the research object, through the requirements analysis model based on SysML language, combined with the modeling analysis method based on standard RFLP, starting from the design requirements of the traction system, complete use case analysis is carried out, and the functional model of the traction system including the architecture model and the state machine model is created. The interactive information between the traction system, external system and internal subsystems is displayed through block definition diagram and internal block diagram. The operation scenarios of the traction system are realized through UI interface, and the state changes of the tracton system during operation are displayed. Functional logic simulation of the traction system is realized, and a positive traceable design and implementation scheme of the traction system is formed. The design method based on MBSE is applied to the design process of EMU to provide forward design guidance for the design of EMU.