{
  "$type": "site.standard.document",
  "description": "An engine control device includes a plurality of cylinders, a direct injection valve that directly injects fuel into the cylinders, a port injection valve that injects fuel into an intake port, a ratio determination unit that determines a ratio between a fuel injection quantity by the direct…",
  "path": "/patents/951528",
  "publishedAt": "2015-03-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D35/027",
    "MITSUBISHI MOTORS CORP [JP]"
  ],
  "textContent": "An engine control device includes a plurality of cylinders, a direct injection valve that directly injects fuel into the cylinders, a port injection valve that injects fuel into an intake port, a ratio determination unit that determines a ratio between a fuel injection quantity by the direct injection valve and a fuel injection quantity by the port injection valve, for respective cylinders, a knock detection unit that detects knocking that occurs in the respective cylinders, and an ignition timing adjustment unit that sets ignition timing of the respective cylinders based on information on occurrence of the knocking by the knock detection unit. The ratio determination unit adjusts, for the respective cylinders, a ratio of the injection quantity between the fuel injection by the direct injection valve and the fuel injection by the port injection valve so that variation in the ignition timing among the cylinders which is determined by the ignition timing adjustment unit falls within a predetermined range.",
  "title": "Engine control device"
}