{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9649946","patent":{"patent_number":"US-9649946","title":"Vehicle and contactless power supply system for adjusting impedence based on power transfer efficiency","assignee":null,"inventors":[],"filing_date":"2013-09-05T00:00:00.000Z","publication_date":"2017-05-16T00:00:00.000Z","cpc_codes":["H02J","H02J","H02J","H02J"],"num_claims":9,"abstract":"A contactless power supply system contactlessly supplies electric power from a power transmitting device to a vehicle. The vehicle includes a power receiving unit contactlessly receiving electric power from the power transmitting device, an electrical storage device storing electric power received by the power receiving unit, and a vehicle ECU. The power transmitting device includes a power supply unit, a power transmitting unit contactlessly supplying electric power, supplied from the power supply unit, to the power receiving unit and a matching transformer used to adjust an impedance between the power supply unit and the power transmitting unit. The vehicle ECU is able to output, to the power transmitting device, a command to adjust the matching transformer, and sets an impedance of the matching transformer on the basis of a power transfer efficiency between the power transmitting unit and the power receiving unit while the electrical storage device is being charged."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Vehicle and contactless power supply system for adjusting impedence based on power transfer efficiency","description":"A contactless power supply system contactlessly supplies electric power from a power transmitting device to a vehicle. The vehicle includes a power receiving unit contactlessly receiving electric powe","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9649946","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-9649946","citation_suggestion":"Patentable. \"Vehicle and contactless power supply system for adjusting impedence based on power transfer efficiency\" (US-9649946). https://patentable.app/patents/US-9649946","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9649946","json":"https://patentable.app/api/llm-context/US-9649946","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:08:26.334Z"}