{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9714885","patent":{"patent_number":"US-9714885","title":"Fault prediction and condition-based repair method of urban rail train bogie","assignee":null,"inventors":[],"filing_date":"2014-12-05T00:00:00.000Z","publication_date":"2017-07-25T00:00:00.000Z","cpc_codes":["G06N","G06N","G06N","G06N"],"num_claims":2,"abstract":"The present invention provides a fault prediction and condition-based repair method of an urban rail train bogie. An optimum service life distribution model of a framework, a spring device, a connecting device, a wheel set and axle box, a driving mechanism, and a basic brake device of a bogie is determined by adopting a method based on survival analysis; a reliability characteristic function of each subsystem is obtained; then, a failure rate of each subsystem of the bogie is calculated by adopting a neural network model optimized by an evolutionary algorithm; and finally, proportional risk modelling is conducted by taking the failure rate and safe operation days of each subsystem of the bogie as concomitant variables; and on the basis of cost optimization, thresholds and control limits for condition-based repair of a bogie system are obtained."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Fault prediction and condition-based repair method of urban rail train bogie","description":"The present invention provides a fault prediction and condition-based repair method of an urban rail train bogie. An optimum service life distribution model of a framework, a spring device, a connecti","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9714885","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9714885","citation_suggestion":"Patentable. \"Fault prediction and condition-based repair method of urban rail train bogie\" (US-9714885). https://patentable.app/patents/US-9714885","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9714885","json":"https://patentable.app/api/llm-context/US-9714885","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:36:34.694Z"}