{
  "$type": "site.standard.document",
  "description": "An electronic control unit (30) for determining knocking in an internal combustion engine (11) having an intake injector (22) for injecting fuel into an air intake port (20) and an in-cylinder injector (17) for directly injecting fuel into a combustion chamber (16). Knocking is determined based on…",
  "path": "/patents/1077772",
  "publishedAt": "2005-05-18T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D41/22",
    "TOYOTA MOTOR CO LTD [JP]"
  ],
  "textContent": "An electronic control unit (30) for determining knocking in an internal combustion engine (11) having an intake injector (22) for injecting fuel into an air intake port (20) and an in-cylinder injector (17) for directly injecting fuel into a combustion chamber (16). Knocking is determined based on an output signal from a knock sensor (33) during a knock determination period. The electronic control unit alters the knock determination period in accordance with the ratio of the amount of fuel injected by the two injectors.",
  "title": "Knocking determination apparatus for internal combustion engine"
}