{
  "$type": "site.standard.document",
  "description": "In a gasoline internal combustion engine, having a first spark plug (11) and a second spark plug (15) for each cylinder (2), associated, respectively, with a combustion pre-chamber (13) and with a combustion chamber (4), the engine crank angle (SA1) of ignition of the first spark plug and the…",
  "path": "/patents/1397743",
  "publishedAt": "2024-07-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02B19/12",
    "MASERATI SPA [IT]"
  ],
  "textContent": "In a gasoline internal combustion engine, having a first spark plug (11) and a second spark plug (15) for each cylinder (2), associated, respectively, with a combustion pre-chamber (13) and with a combustion chamber (4), the engine crank angle (SA1) of ignition of the first spark plug and the engine crank angle (SA2) of ignition of the second spark plug are controlled as a function of the engine load and the engine rotation speed, and as a function of a required value of the torque delivered by the engine, referring to a single normalized reference surface (G), which is always the same for any operating point of the engine, and which supplies the efficiency (η) of the engine as a function of the difference between the engine crank angle of ignition of the first spark plug (SA1) and the optimal value of this angle (SA1 opt) at which the efficiency becomes maximum, and as a function of the difference between the engine crank angle of ignition of the second spark plug (SA2) and the optimal value of this angle (SA2 opt) at which the efficiency becomes maximum.",
  "title": "A METHOD FOR CONTROLLING A GASOLINE INTERNAL COMBUSTION ENGINE, HAVING TWO SPARK PLUGS FOR EACH CYLINDER"
}