{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10521980","patent":{"patent_number":"US-10521980","title":"Method of diagnosing oil leak of engine clutch in hybrid electric vehicle","assignee":null,"inventors":[],"filing_date":"2017-05-24T00:00:00.000Z","publication_date":"2019-12-31T00:00:00.000Z","cpc_codes":["G07C"],"num_claims":6,"abstract":"The present disclosure provides a method of diagnosing an oil leak of an engine clutch in a hybrid electric vehicle including: when the engine starts up in the hybrid electric vehicle, operating a hydraulic actuator provided in the engine clutch, wherein the hydraulic actuator is configured to perform engagement or disengagement between an engine and a motor; determining displacement of a piston provided in the hydraulic actuator and pressure for any displacement of a plurality of the displacements of the piston; calculating a pressure gradient based on the displacement of the piston and the pressure for any displacement of the plurality of the displacements of the piston; and determining the oil leak of the engine clutch based on the pressure gradient."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of diagnosing oil leak of engine clutch in hybrid electric vehicle","description":"The present disclosure provides a method of diagnosing an oil leak of an engine clutch in a hybrid electric vehicle including: when the engine starts up in the hybrid electric vehicle, operating a hyd","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10521980","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-10521980","citation_suggestion":"Patentable. \"Method of diagnosing oil leak of engine clutch in hybrid electric vehicle\" (US-10521980). https://patentable.app/patents/US-10521980","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10521980","json":"https://patentable.app/api/llm-context/US-10521980","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T07:34:24.935Z"}