Patent ID: 11959425
Assignee: VOLVO TRUCK CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A method for controlling a valve arrangement of an internal combustion engine comprising an exhaust gas aftertreatment system, the valve arrangement comprising at least one inlet valve configured to be arranged in an open position during an air intake event of the internal combustion engine, and at least one exhaust valve configured to be arranged in an open position during an exhaust event of the internal combustion engine; the valve arrangement further comprising a piston arrangement comprising a piston having a piston end portion facing the inlet valve, the piston being arranged to controllably position the inlet valve in the open position, wherein the piston end portion and the inlet valve are arranged at a distance, by means of an air gap, from each other when the inlet valve is arranged in a closed position; the method comprising the steps of:
receiving a signal indicative of a temperature level of the exhaust gas aftertreatment system and when the signal indicates a temperature level below a predetermined threshold level:
advancing the exhaust event of the internal combustion engine; and
controlling the piston arrangement for reducing the distance between the piston end portion and the inlet valve before the internal combustion engine assumes the air intake event.