Design of Train Traction System for EMU Based on MBSE

Model-Based Systems Engineering (MBSE) has been widely applied in the aerospace field and is gradually attracting attention in the railway transportation sector. With the advancement of railway technology, shortening the design cycle and improving design quality have become important guarantees to enhance market competitiveness. This paper focuses on the traction system of electric multiple units (EMU) and adopts a model-based systems engineering design approach. A functional prototype of the traction system based on SysML is established, and the functional logic simulation of the traction system is carried out by simulating the state changes during operation. The preliminary simulation validation of the traction system’s functionality is completed to improve design quality and reduce design iterations caused by errors or changes.