{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9671380","patent":{"patent_number":"US-9671380","title":"Method for diagnosing particulate matter sensor deterioration","assignee":null,"inventors":[],"filing_date":"2014-10-02T00:00:00.000Z","publication_date":"2017-06-06T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N"],"num_claims":17,"abstract":"A method is presented for diagnosing a particulate matter sensing system, where the system includes a sensing element having two electrodes spaced from one another. The method determining at a first time during a cool-down event a first sensing element temperature and a resistance of the sensing element, and determining at a later second time during the cool-down event a second sensing element temperature and the resistance of the sensing element. The method further includes calculating a predicted sensing element resistance at the second sensing element temperature, based on the first sensing element temperature, the resistance of the sensing element determined at the first time, and a predetermined model of the resistance vs. temperature characteristics of the sensing element. A fault condition for the system may be indicated based on a comparison of the predicted sensing element resistance at the second sensing element temperature and a measured sensing element resistance."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for diagnosing particulate matter sensor deterioration","description":"A method is presented for diagnosing a particulate matter sensing system, where the system includes a sensing element having two electrodes spaced from one another. The method determining at a first t","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9671380","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-9671380","citation_suggestion":"Patentable. \"Method for diagnosing particulate matter sensor deterioration\" (US-9671380). https://patentable.app/patents/US-9671380","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9671380","json":"https://patentable.app/api/llm-context/US-9671380","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:42:00.785Z"}