{
  "$type": "site.standard.document",
  "description": "An object of the present disclosure is to provide a control method and apparatus which are capable of stably securing an exhaust gas recirculation (EGR) flow rate for implementing low temperature combustion by expanding a control range of EGR, and in order to achieve the object, the present…",
  "path": "/patents/956033",
  "publishedAt": "2015-11-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D21/08",
    "DOOSAN INFRACORE CO LTD [KR]"
  ],
  "textContent": "An object of the present disclosure is to provide a control method and apparatus which are capable of stably securing an exhaust gas recirculation (EGR) flow rate for implementing low temperature combustion by expanding a control range of EGR, and in order to achieve the object, the present disclosure provides a method of controlling exhaust gas recirculation (EGR) for controlling recirculation of exhaust gas discharged from a combustion chamber of an engine, including: a data obtaining operation of obtaining data about an engine state and a gas supply state; a current EGR rate calculating operation of calculating a current EGR rate of supply gas based on the data; a demand EGR rate setting operation of setting a demand EGR rate matched with the data in a pre-made target EGR rate map; an error calculating operation of calculating a difference between the demand EGR rate and the current EGR rate; and a control operation of making the current EGR rate follow the demand EGR rate by changing a recirculation rate of the exhaust gas by adjusting an inhalation side pressure of the supply gas according to the difference.",
  "title": "METHOD AND APPARATUS FOR CONTROLLING EGR"
}