{
  "$type": "site.standard.document",
  "description": "A controller for an internal combustion engine is provided. Control circuitry executes a determination process when the internal combustion engine is in an idling operation state. A pressure sensor detects a passage fuel pressure that is a pressure of gaseous fuel in a portion of a fuel passage…",
  "path": "/patents/1389527",
  "publishedAt": "2026-06-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D41/221",
    "TOYOTA JIDOSHA KABUSHIKI KAISHA"
  ],
  "textContent": "A controller for an internal combustion engine is provided. Control circuitry executes a determination process when the internal combustion engine is in an idling operation state. A pressure sensor detects a passage fuel pressure that is a pressure of gaseous fuel in a portion of a fuel passage between a shut-off valve and a fuel injection valve. The determination process determines whether the shut-off valve is stuck open based on an output of a valve closing signal to the shut-off valve and a decrease amount of the passage fuel pressure that occurs until an elapsed period after the valve closing signal is output reaches a predetermined specified period.",
  "title": "CONTROLLER FOR INTERNAL COMBUSTION ENGINE"
}