{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9851388","patent":{"patent_number":"US-9851388","title":"Apparatus and method for detecting faults of battery heating system and relays","assignee":null,"inventors":[],"filing_date":"2014-12-14T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["H02J","H02J","H02J","H02J","H02J"],"num_claims":18,"abstract":"Disclosed is a method and system for detecting faults of a battery heating system and relays. In particular, a method for detecting welding of each relay such as a main relay, a precharge relay or a heater relay and a method for detecting a fault of a battery heating system such as a short circuit, disconnection or damage of each heater are provided by sensing a voltage. In the methods, the on/off state of the heater relay and the high voltage relays is controlled through a predetermined process to detect a fault of the heater relay or the high voltage relay, and welding of the heater relay or the high voltage relay is then detected from a voltage for fault detection which is sensed through a voltage sensing circuit unit for fault detection."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Apparatus and method for detecting faults of battery heating system and relays","description":"Disclosed is a method and system for detecting faults of a battery heating system and relays. In particular, a method for detecting welding of each relay such as a main relay, a precharge relay or a h","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9851388","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-9851388","citation_suggestion":"Patentable. \"Apparatus and method for detecting faults of battery heating system and relays\" (US-9851388). https://patentable.app/patents/US-9851388","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9851388","json":"https://patentable.app/api/llm-context/US-9851388","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:59:02.471Z"}