{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9651923","patent":{"patent_number":"US-9651923","title":"Bump-less transfer term for proportional action controllers that eschew the integral action term","assignee":null,"inventors":[],"filing_date":"2014-06-27T00:00:00.000Z","publication_date":"2017-05-16T00:00:00.000Z","cpc_codes":["G05B"],"num_claims":3,"abstract":"In automatic process-control systems, the integral action term in Proportional plus Integral action (P+I) control is used primarily to prevent any continued deviations from a set-point, and concomitantly to secure a bump-less transfer from manual control to automatic control. However, there are serious set-backs when using the integral action term for level controls, due to the liability of the integral action term to cause overflows from vessels, which can result in disastrous oil-spills, when a process is on automatic control. Hence, to secure a bump-less transfer without the integral action term, an alternate method is necessary. The method advocated calls for an additional term, which has been termed as a Bump-less Transfer ‘BT(t)’ term, to be included into the control algorithm. This term accepts deviations from the set-point, and even brings about sufficient deviation from the set-point to secure a bump-less transfer, since deviations within the proportional band are normally acceptable for level controls."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Bump-less transfer term for proportional action controllers that eschew the integral action term","description":"In automatic process-control systems, the integral action term in Proportional plus Integral action (P+I) control is used primarily to prevent any continued deviations from a set-point, and concomitan","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9651923","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-9651923","citation_suggestion":"Patentable. \"Bump-less transfer term for proportional action controllers that eschew the integral action term\" (US-9651923). https://patentable.app/patents/US-9651923","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9651923","json":"https://patentable.app/api/llm-context/US-9651923","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:39:44.009Z"}