Anomaly detection device

The abnormality diagnosis device in fuel cell systems uses specific determination conditions to automatically detect abnormalities, enhancing diagnostic accuracy and enabling proactive maintenance by identifying issues directly from device operation data.

JP2026115712APending Publication Date: 2026-07-09OSAKA GAS CO LTD

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
OSAKA GAS CO LTD
Filing Date
2024-12-27
Publication Date
2026-07-09

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    Figure 2026115712000001_ABST
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Abstract

To provide an abnormality diagnostic device that can appropriately diagnose the nature of abnormalities occurring in fuel cell systems. [Solution] The abnormality diagnostic device determines that the treatment process is performed for a short period of time if the first determination condition is met, which is that the temperature of the exhaust gas measured by the exhaust gas temperature measuring instrument does not show a predetermined upward trend during the period in which a predetermined treatment process in which an oxidizable substance is performed in the exhaust gas, and the second determination condition is met, which is that the treatment process is completed in a shorter period than the predetermined scheduled period.
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