{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9835350","patent":{"patent_number":"US-9835350","title":"Method for controlling constant air volume of ECM motor in HVAC system","assignee":null,"inventors":[],"filing_date":"2016-01-04T00:00:00.000Z","publication_date":"2017-12-05T00:00:00.000Z","cpc_codes":["G05B"],"num_claims":18,"abstract":"A method for controlling constant air volume of an ECM motor in an HVAC system. The method includes: a) acquiring a target air volume Qset input from an external, determining a function Itad=f(n) corresponding to the target air volume Qset by the microprocessor, in which Itad represents a bus current, n represents a rotational speed of the motor; b) acquiring a calculated bus current Itad according to the rotational speed n and the function Itad=f(n), and detecting a real-time bus current Ibus; and c) comparing the calculated bus current Itad with the real-time bus current Ibus by the microprocessor for closed-loop control; when Itad>Ibus, increasing the rotational speed n of the motor; when Itad<Ibus, decreasing the rotational speed n of the motor; and when Itad=Ibus, stopping regulating the rotational speed n and returning to B) for continuing the control of the constant air volume."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for controlling constant air volume of ECM motor in HVAC system","description":"A method for controlling constant air volume of an ECM motor in an HVAC system. The method includes: a) acquiring a target air volume Qset input from an external, determining a function Itad=f(n) corr","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9835350","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-9835350","citation_suggestion":"Patentable. \"Method for controlling constant air volume of ECM motor in HVAC system\" (US-9835350). https://patentable.app/patents/US-9835350","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9835350","json":"https://patentable.app/api/llm-context/US-9835350","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:24:10.498Z"}