{
  "$type": "site.standard.document",
  "description": "An intake air amount control system for an internal combustion engine, which controls respective amounts of intake air drawn into four cylinders #1 to #4, independently of each other, by variable inter-intake cam phase mechanisms 80, identifies intake air amount variation coefficients ¦#i, based on…",
  "path": "/patents/1068429",
  "publishedAt": "2006-04-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01L13/0047",
    "HONDA MOTOR CO LTD [JP]"
  ],
  "textContent": "An intake air amount control system for an internal combustion engine, which controls respective amounts of intake air drawn into four cylinders #1 to #4, independently of each other, by variable inter-intake cam phase mechanisms 80, identifies intake air amount variation coefficients ¦#i, based on a model [equation (43)] defining a relationship between an estimated value Gth_est of a TH passing intake air amount and a plurality of simulation values Gcyl_OS#i, such that the estimated value Gth_est becomes equal to the TH passing intake air amount, calculates a target inter-intake cam phase ¸ssi#i_cmd, on a cylinder-by-cylinder basis, according to the identified intake air amount variation coefficients ¦#i (step 81), and calculates control input DUTY_ssi#2 to #4 to the variable inter-intake cam phase mechanisms 80 according to the target inter-intake cam phases ¸ssi#i_cmd (step 75).",
  "title": "INTAKE AIRVOLUME CONTROLLER OF INTERNAL COMBUSTION ENGINE"
}