{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9834206","patent":{"patent_number":"US-9834206","title":"Fault-tolerant operation of hybrid electric vehicle","assignee":null,"inventors":[],"filing_date":"2017-03-29T00:00:00.000Z","publication_date":"2017-12-05T00:00:00.000Z","cpc_codes":["B60W","B60W","B60W","B60W","H02M","H02M","B60W","B60W","B60W","B60W","B60W","B60W","H02M","H02M","H02M"],"num_claims":12,"abstract":"A hybrid drive system has a battery and a combustion engine for energy sources. The system has a traction motor, a generator, a variable voltage converter (VVC), a motor inverter, a generator inverter, a bus coupling the VVC to the inverters, and a controller. The controller regulates engine speed, motor torque, and generator torque. The engine speed is determined according to a driver torque demand. In normal conditions, 1) the controller regulates the engine speed by modifying a generator torque command, and 2) the bus voltage is regulated using the VVC and battery. When the controller detects a fault in which the battery and VVC become unavailable for regulating the bus voltage, then the controller regulates a motor inverter power output to match a sum of a generator inverter power output and an estimated power loss of the inverters in order to regulate the bus voltage."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Fault-tolerant operation of hybrid electric vehicle","description":"A hybrid drive system has a battery and a combustion engine for energy sources. The system has a traction motor, a generator, a variable voltage converter (VVC), a motor inverter, a generator inverter","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9834206","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-9834206","citation_suggestion":"Patentable. \"Fault-tolerant operation of hybrid electric vehicle\" (US-9834206). https://patentable.app/patents/US-9834206","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9834206","json":"https://patentable.app/api/llm-context/US-9834206","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:26:24.315Z"}