{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "The present invention relates a method for controlling the operation of an engine system (10) in a vehicle (1) upon engine start. The engine system comprises an engine (15) and an exhaust aftertreatment system (20) having a selective catalyst reduction, SCR, catalyst (32) and a reductant dosing…",
  "path": "/patents/1400473",
  "publishedAt": "2026-06-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01N3/2013",
    "VOLVO TRUCK CORP [SE]"
  ],
  "textContent": "The present invention relates a method for controlling the operation of an engine system (10) in a vehicle (1) upon engine start. The engine system comprises an engine (15) and an exhaust aftertreatment system (20) having a selective catalyst reduction, SCR, catalyst (32) and a reductant dosing system (34) for providing a reductant to the SCR catalyst. The method comprises: determining (S100) the temperature of the SCR catalyst; in response of determining that the temperature of the SCR catalyst is above a predetermined threshold, initiating pressurising (S104) of the reductant dosing system towards a predefined operating pressure; performing (S106) a preventive action for delaying engine start until the operating pressure of the reductant dosing system is reached.",
  "title": "A METHOD FOR CONTROLLING THE OPERATION OF AN ENGINE SYSTEM IN A VEHICLE UPON ENGINE START"
}