METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE

摘要

The invention relates to an internal combustion engine comprising a fuel-supply device, a low-pressure circuit and a high-pressure pump, to which a control valve for a volumetric flow is allocated. Said pump is coupled on the inlet side to the low-pressure circuit and transports fuel to a fuel accumulator. An estimated value of the drive torque (TQ_LOSS_HPP) of the high-pressure pump is determined in accordance with the fuel pressure (P) in the fuel accumulator. A loss torque (TQ_LOSS) is determined in accordance with the estimated value for the drive torque (TQ_LOSS_HPP) of the high-pressure pump and additional loss-torque fractions, which are dependent on a motor speed (N) and additional operating variables. A target torque is determined in accordance with said loss torque (TQ_LOSS) and at least one actuating signal for controlling an actuator of the internal combustion engine is generated from said target torque. ® KIPO & WIPO 2007