Objective Urban rail transit vehicles face two prominent problems in the O&M (operation and maintenance）service stage: the low efficiency in data management during this stage, and the existence of information silos between different stages of the vehicle product life cycle. Therefore, it is necessary to conduct research on configuration management methods for the MRO (maintenance, repair, and operations) services of urban rail transit vehicles.

Method A set of configuration management methods tailored for urban rail transit vehicles is proposed. Firstly, by analyzing the vehicle diverse demands for MRO services in the O&M stage, the definitions of configuration objects, configuration correlations, and configuration attributes are clarified. On this basis, a three-tier configuration management system consisting of functional configuration, physical configuration and service configuration is designed, and a configuration evolution model for the O&M service stage is established. The proposed system can effectively organize, manage and control changes of vehicle service data, and realize the integration and interconnection of lifecycle data across all stages. Meanwhile, service data can be used to drive the O&M management, providing an accurate, comprehensive, and complete data foundation for the informatization and digitalization of services. Finally, the passenger compartment door of a certain train model is taken as an example to verify the support and traceability capabilities of the proposed configuration management system for product MRO services so as to demonstrate the effectiveness of the system.

Result & Conclusion  The established configuration management system realizes refined management of product MRO services, guarantees the consistency and change continuity of vehicle product data, and enables information interconnection and data invocation between the O&M, design and manufacturing stages, thereby greatly improving vehicle product service efficiency.