{
  "$type": "site.standard.document",
  "description": "A temporal change of a turbo rotation speed of a turbocharger is detected for each cycle of an engine. A first vibration component corresponding to each of cylinders is specified from a pulsation component included in the temporal change of the turbo rotation speed, and the first vibration…",
  "path": "/patents/1314782",
  "publishedAt": "2022-04-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D41/0007",
    "MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD."
  ],
  "textContent": "A temporal change of a turbo rotation speed of a turbocharger is detected for each cycle of an engine. A first vibration component corresponding to each of cylinders is specified from a pulsation component included in the temporal change of the turbo rotation speed, and the first vibration components for each of the cylinders are integrated over a plurality of cycles. A variation of combustion states in the plurality of cylinders is calculated by comparing integration results among the cylinders.",
  "title": "OPERATING STATE DETERMINATION DEVICE FOR ENGINE, VEHICLE, OPERATING STATE DETERMINATION METHOD FOR ENGINE"
}