{
  "$type": "site.standard.document",
  "description": "Disclosed is a control device for an internal combustion engine, which determines a fuel injection quantity deviation state and/or an intake oxygen concentration-related parameter deviation state on the basis of the relationship between the target value (Qtgt) of the fuel injection quantity and an…",
  "path": "/patents/985430",
  "publishedAt": "2013-03-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D41/146",
    "TOYOTA MOTOR CO LTD [JP]"
  ],
  "textContent": "Disclosed is a control device for an internal combustion engine, which determines a fuel injection quantity deviation state and/or an intake oxygen concentration-related parameter deviation state on the basis of the relationship between the target value (Qtgt) of the fuel injection quantity and an NOx concentration deviation (”Ox) indicating the difference of the measured value or the estimate value of the NOx concentration of exhaust gas with respect to a predetermined NOx reference concentration, said control device being provided with a state determination means for, on the basis of a first determination index including the amount of change of the NOx concentration deviation (”NOx) when the target value (Qtgt) of the fuel injection quantity increases within a predetermined range and the NOx concentration deviation (”NOx) when the target value (Qtgt) of the fuel injection quantity is a predetermined first value (Qtgt2), and the like, determining whether the fuel injection quantity deviation is zero, positive, or negative.",
  "title": "CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE"
}