{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "The characteristics of an output of an exhaust gas sensor with respect to the air-fuel ratio of an engine (1) are expressed by a nonlinear function such as a quadratic function or the like, and the parameters of the nonlinear function are sequentially identified according to a sequential…",
  "path": "/patents/1112951",
  "publishedAt": "2001-05-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01N11/00",
    "HONDA MOTOR CO LTD [JP]"
  ],
  "textContent": "The characteristics of an output of an exhaust gas sensor with respect to the air-fuel ratio of an engine (1) are expressed by a nonlinear function such as a quadratic function or the like, and the parameters of the nonlinear function are sequentially identified according to a sequential identifying algorithm using data of the output of the exhaust gas sensor (5) and the data of the output of an air-fuel sensor (4) which detects the air-fuel ratio of the engine. An air-fuel ratio at which the function value of the nonlinear function whose parameters have been identified is used as a target air-fuel ratio, and the air-fuel ratio of the engine is controlled at the target air-fuel ratio.",
  "title": "Air-fuel ratio control apparatus for internal combustion engine"
}