{
  "$type": "site.standard.document",
  "description": "A method of determining opening of an intake valve (10) of an internal combustion engine (1), the method including the steps of : determining the time pattern of an intake pressure (P) in an intake manifold (9) of the internal combustion engine (1), the time pattern of the rotation speed (É) of a…",
  "path": "/patents/1014658",
  "publishedAt": "2011-03-23T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01L1/143",
    "MAGNETI MARELLI SPA [IT]"
  ],
  "textContent": "A method of determining opening of an intake valve (10) of an internal combustion engine (1), the method including the steps of : determining the time pattern of an intake pressure (P) in an intake manifold (9) of the internal combustion engine (1), the time pattern of the rotation speed (É) of a drive shaft (4) of the internal combustion engine (1), or the time pattern of a voltage (V) at the terminals of a battery (6) of the internal combustion engine (1); determining an intake-frequency component of the intake pressure (P), the rotation speed (É), or the voltage (V); and determining opening of the intake valve (10) as a function of the intake-frequency component of the intake pressure (P), and also as a function of the intake-frequency component of the rotation speed (É) or voltage (V).",
  "title": "Method of determining opening of an internal combustion engine intake valve"
}