{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11952953","patent":{"patent_number":"US-11952953","title":"Anomaly diagnosing apparatus and anomaly diagnosing method for vehicle on-board internal combustion engine","assignee":null,"inventors":[],"filing_date":"2023-05-04T00:00:00.000Z","publication_date":"2024-04-09T00:00:00.000Z","cpc_codes":["G07C"],"num_claims":7,"abstract":"An internal combustion engine includes a forced-induction device, a blow-by gas passage, and a PCV pressure sensor detecting a pressure in the blow-by gas passage as a PCV pressure. A period during which an intake fluctuation amount, which is a fluctuation amount of an intake air amount per unit time, is greater than or equal to a specified value is defined as a specific period. The diagnosing apparatus executes a process of calculating a pressure fluctuation amount, which is a fluctuation amount of the PCV pressure in the specific period, a process of correcting the pressure fluctuation amount to a smaller value when the intake air fluctuation amount in the specific period is relatively large than when the intake air fluctuation amount is relatively small, and a process of determining, based on the corrected pressure fluctuation amount, whether there is an anomaly in the blow-by gas passage."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Anomaly diagnosing apparatus and anomaly diagnosing method for vehicle on-board internal combustion engine","description":"An internal combustion engine includes a forced-induction device, a blow-by gas passage, and a PCV pressure sensor detecting a pressure in the blow-by gas passage as a PCV pressure. A period during wh","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11952953","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-11952953","citation_suggestion":"Patentable. \"Anomaly diagnosing apparatus and anomaly diagnosing method for vehicle on-board internal combustion engine\" (US-11952953). https://patentable.app/patents/US-11952953","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11952953","json":"https://patentable.app/api/llm-context/US-11952953","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T14:38:16.050Z"}