{
  "$type": "site.standard.document",
  "coverImage": {
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    "mimeType": "image/png",
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  "description": "Two lambda sensors (6, 7) are located at equal distances downstream of the nitrogen oxides (NOx) trap (3) in the exhaust line (2). One lambda sensor has a rhodium-based catalytic layer. Their output signals are connected to a differential measurement system (8), to determine the quantity of NOx in…",
  "path": "/patents/1082335",
  "publishedAt": "2004-11-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01N3/0842",
    "PEUGEOT CITROEN AUTOMOBILES SA [FR]"
  ],
  "textContent": "Two lambda sensors (6, 7) are located at equal distances downstream of the nitrogen oxides (NOx) trap (3) in the exhaust line (2). One lambda sensor has a rhodium-based catalytic layer. Their output signals are connected to a differential measurement system (8), to determine the quantity of NOx in the exhaust gas. When the measurement exceeds a predetermined limit, the controller (4) initiates the regeneration phase.",
  "title": "Assistance system for the regeneration of a NOx trap"
}