{
  "$type": "site.standard.document",
  "description": "Methods are provided for estimating the NO x content of exhaust gas produced by an internal combustion engine (10). The method includes determining one or more operating parameters. The method further includes applying the determined operating parameter(s) to a global NO x model. The global NO x…",
  "path": "/patents/967937",
  "publishedAt": "2014-10-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D41/1462",
    "INT ENGINE INTELLECTUAL PROP [US]"
  ],
  "textContent": "Methods are provided for estimating the NO x content of exhaust gas produced by an internal combustion engine (10). The method includes determining one or more operating parameters. The method further includes applying the determined operating parameter(s) to a global NO x model. The global NO x model may be derived using a plurality of steady state data points relating to local NO x emission models. The steady state data points may be derived using a plurality of set and variable operating parameters (52, 54, 58). The global NO x model allows for prediction of the engine-out NO x content of exhaust gas in real time and without a NO x sensor, even if engine operating parameters change.",
  "title": "Engine exhaust gas NOx Model"
}