{
  "$type": "site.standard.document",
  "description": "In a control device 50A, an actual compression ratio calculation unit 502 calculates an actual compression ratio µ from an air supply pressure Ps, a cylinder pressure before ignition Pc and an air supply temperature Ts. A deposit deposition estimation unit 504 determines the deposit deposition…",
  "path": "/patents/967050",
  "publishedAt": "2014-11-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D35/023",
    "MITSUBISHI HEAVY IND LTD [JP]"
  ],
  "textContent": "In a control device 50A, an actual compression ratio calculation unit 502 calculates an actual compression ratio µ from an air supply pressure Ps, a cylinder pressure before ignition Pc and an air supply temperature Ts. A deposit deposition estimation unit 504 determines the deposit deposition state of a combustion chamber 18 from a deviation µ between the actual compression ratio µ and a design compression ratio µ'. When the deviation µ exceeds a threshold value, ignition timing or air-fuel ratio being operation conditions of an internal combustion engine is corrected based on a correction map 508 so as to suppress deterioration of exhaust gas.",
  "title": "COMBUSTION CONTROL DEVICE AND METHOD FOR AN INTERNAL COMBUSTION ENGINE"
}