{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9639078","patent":{"patent_number":"US-9639078","title":"Tandem position control device","assignee":null,"inventors":[],"filing_date":"2016-03-17T00:00:00.000Z","publication_date":"2017-05-02T00:00:00.000Z","cpc_codes":["G05B","G05B","G05B","G05B","G05B"],"num_claims":2,"abstract":"A position control device for driving one control target, using two drive shafts, has position control units provided to the respective drive shafts. Each position control unit includes a calculation unit for calculating a torque command value before compensation, a deflection vibration reduction torque compensator for calculating a deflection torque estimate and calculating a deflection vibration reduction torque compensation amount, based on the deflection torque estimate and a deflection vibration reduction compensation gain, and a compensator gain calculation unit for outputting, upon receipt of a tandem control command, to the deflection vibration reduction torque compensator, a signal for outputting the deflection vibration reduction torque compensation amount and calculating the deflection vibration reduction compensation gain, and the each of the position control units outputs a value obtained by adding the deflection vibration reduction torque compensation amount to the torque command value before compensation as the torque command value."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Tandem position control device","description":"A position control device for driving one control target, using two drive shafts, has position control units provided to the respective drive shafts. Each position control unit includes a calculation ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9639078","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-9639078","citation_suggestion":"Patentable. \"Tandem position control device\" (US-9639078). https://patentable.app/patents/US-9639078","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9639078","json":"https://patentable.app/api/llm-context/US-9639078","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:22:59.503Z"}