{
  "$type": "site.standard.document",
  "description": "Provided is an internal combustion engine control unit that controls an engine by detecting combustion characteristics with a simple configuration robust to disturbance such as noise. Therefore, the internal combustion engine control unit (ECU ) of the present embodiment includes a rotational speed…",
  "path": "/patents/1322457",
  "publishedAt": "2022-07-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D35/028",
    "Hitachi Astemo, Ltd."
  ],
  "textContent": "Provided is an internal combustion engine control unit that controls an engine by detecting combustion characteristics with a simple configuration robust to disturbance such as noise. Therefore, the internal combustion engine control unit (ECU ) of the present embodiment includes a rotational speed calculation unit that calculates a crank rotational speed of an internal combustion engine (engine ); an extreme value timing calculation unit that calculates an extreme value timing of the crank rotational speed calculated by the rotational speed calculation unit ; and a combustion state estimation unit (combustion phase calculation unit ) that estimates a combustion state based on the extreme value timing of the crank speed calculated by the extreme value timing calculation unit",
  "title": "Internal Combustion Engine Control Unit"
}