{
  "$type": "site.standard.document",
  "description": "An internal combustion engine comprises a supercharger having a compressor and a turbine and an EGR apparatus having an exhaust recirculating pipe an upstream EGR valve and a downstream EGR valve An electronic control unit fully opens the upstream EGR valve and controls an EGR amount by the…",
  "path": "/patents/1233899",
  "publishedAt": "2019-05-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M26/05",
    "TOYOTA JIDOSHA KABUSHIKI KAISHA"
  ],
  "textContent": "An internal combustion engine comprises a supercharger having a compressor and a turbine and an EGR apparatus having an exhaust recirculating pipe an upstream EGR valve and a downstream EGR valve An electronic control unit fully opens the upstream EGR valve and controls an EGR amount by the downstream EGR valve when a peak value of an exhaust pressure increases excessively. Thereby, since exhaust volume increases, the peak value of the exhaust pressure falls. Therefore, damage of parts of an exhaust system can be avoided. The electronic control unit fully opens the downstream EGR valve and controls the EGR amount by the upstream EGR valve when the peak value of the exhaust pressure decreases excessively. Thereby, since the exhaust volume decreases, the peak value of the exhaust pressure rises. Therefore, supercharging can be continued while an EGR gas is being introduced.",
  "title": "EGR CONTROL DEVICE"
}