{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
      "$link": "bafkreiaq5vru6x2e3do2dr6vsbiu75fvjk4uik6wqmqrdgsbhqlslgenr4"
    },
    "mimeType": "image/png",
    "size": 115798
  },
  "description": "A method for detecting a misfiring cylinder is characterized by: performing frequency analysis on a torsional vibration signal from an internal-combustion engine system to extract an amplitude and a phase of a fundamental frequency component; comparing the amplitude of the fundamental frequency…",
  "path": "/patents/1360036",
  "publishedAt": "2024-02-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01M15/05",
    "EONC CO., LTD."
  ],
  "textContent": "A method for detecting a misfiring cylinder is characterized by: performing frequency analysis on a torsional vibration signal from an internal-combustion engine system to extract an amplitude and a phase of a fundamental frequency component; comparing the amplitude of the fundamental frequency component with the amplitude of the torsional vibration signal to determine whether misfiring has occurred; calculating, when the misfiring is determined to occur, an explosion angle of a misfiring cylinder by using crank angle displacement at which the fundamental frequency component has a maximum value, and a phase of a fundamental frequency component with excitation force; and comparing the calculated explosion angle with an explosion angle of explosion order to detect the position of the misfiring cylinder.",
  "title": "METHOD AND DEVICE FOR DETECTING MISFIRING CYLINDER OF RECIPROCATING INTERNAL-COMBUSTION ENGINE USING TORSIONAL VIBRATION SIGNAL"
}