Intelligent EMU Operation and Maintenance Technologies Based on PHM

Abstract: Prognostics and Health Management (PHM) technology is a critical component in establishing a precision-based Operation and Management (O&M) system for EMUs. This technology is essential for enhancing life cycle management and advancing manufacturing and repair processes of EMUs. Through the analysis on O&M requirements of EMUs, this paper proposes the intelligent O&M objectives of EMUs based on PHM technology, as well as the system design architecture incorporating functions such as condition monitoring, fault prediction, health assessment, decision support and O&M analysis; and constructs a PHM-based standardized system for intelligent O&M of EMUs. The study also explores aspects such as the data lifecycle of EMUs, the development of PHM models, high-frequency streaming computation methods, unified management of heterogeneous models, and PHM-driven O&M production organization technologies. The PHM-based intelligent O&M system has been implemented across the railway network, achieving seamless information flow throughout the entire process of monitoring, decision-making and execution.