{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11472472","patent":{"patent_number":"US-11472472","title":"Power conversion device, motor module, and electric power steering device","assignee":null,"inventors":[],"filing_date":"2018-06-22T00:00:00.000Z","publication_date":"2022-10-18T00:00:00.000Z","cpc_codes":["B62D","B62D","B62D","H02M","H02M"],"num_claims":12,"abstract":"A power conversion device includes a first inverter and a control circuit that controls an on/off operations of switches in the first inverter and diagnoses disconnection failures of n-phase windings, where n is an integer of three or more. The control circuit generates a control signal to turn off all of n low-side switches and n high-side switches, supplies the control signal to the n low-side switches and the n high-side switches and measures the n-phase voltages that change depending on patterns of on failures of the switches, and executes a first failure diagnosis to diagnose the on failures of the n low-side switches and the n high-side switches based on the measured n-phase voltages by referring to a table associating the patterns of the on failures of the switches with n-phase voltage levels."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Power conversion device, motor module, and electric power steering device","description":"A power conversion device includes a first inverter and a control circuit that controls an on/off operations of switches in the first inverter and diagnoses disconnection failures of n-phase windings,","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11472472","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-11472472","citation_suggestion":"Patentable. \"Power conversion device, motor module, and electric power steering device\" (US-11472472). https://patentable.app/patents/US-11472472","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11472472","json":"https://patentable.app/api/llm-context/US-11472472","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T16:24:14.918Z"}