A DEVICE AND METHOD IN CONNECTION WITH A PRE-HEATING PROCESS OF AN AFTERTREATMENT SYSTEM

A method performed by a control unit (70) in connection with a pre-heating process of an aftertreatment system (40) for a combustion engine (30) is provided. The control unit (70) obtains a scheduled start time of the combustion engine (30). The control unit (70) schedules a pre-heating of the aftertreatment system (40) to be completed before the scheduled start time. The control unit (70) detects a start of the combustion engine (30) at an actual start time. In response to the detected start of the combustion engine (30), and using the actual and scheduled start times, the control unit (70) determines whether the scheduled pre-heating of the aftertreatment system (40) fulfils one or more success criteria. When the one or more success criteria are fulfilled, the control unit (70) triggers a performance increase of the combustion engine (30).