{
  "$type": "site.standard.document",
  "description": "Disclosed is a control device (80) for an internal combustion engine that is used with an internal combustion engine (10) having an EGR catalyst (64) and an EGR valve (70) in an EGR path (62) for connecting an exhaust path (44) to an intake path (12), and capable of preventing the purification…",
  "path": "/patents/998193",
  "publishedAt": "2012-09-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D41/0052",
    "TOYOTA MOTOR CO LTD [JP]"
  ],
  "textContent": "Disclosed is a control device (80) for an internal combustion engine that is used with an internal combustion engine (10) having an EGR catalyst (64) and an EGR valve (70) in an EGR path (62) for connecting an exhaust path (44) to an intake path (12), and capable of preventing the purification performance of the EGR catalyst (64) from being degraded during EGR stoppage and purifying exhaust gas in a preferred manner upon EGR resumption. When EGR is stopped with the EGR valve (70) closed, the control device (80) judges whether an EGR path air-fuel ratio is richer than a threshold value. If the EGR path air-fuel ratio is judged to be richer than the threshold value, the control device (80) sets a target air-fuel ratio for the internal combustion engine (10) to be leaner than a stoichiometric air-fuel ratio.",
  "title": "INTERNAL COMBUSTION ENGINE CONTROL DEVICE"
}