Volkswagen Ag

Stefan Klie

Samuel Trebesius

Florian Thauer

Maiko Garwon

Andreas Sprysch

René Kleinhans

Holger Blume

Robert Beckmann

Stefanie Thauer

Stefanie Wilke

Malte KÖLLER

A method for carrying out a gas exchange in a cylinder of an internal combustion engine is provided. The cylinder is connected to a gas line section via a valve. An actuator adjusts a gas pressure in the gas line section. The valve closes at a fixed point in time in a working cycle of the internal combustion engine in case of a constant torque of the internal combustion engine. The method includes the steps of recognizing a torque change request; determining a target value for the gas pressure in the gas line section in dependence on the torque change request; and determining a variable point in time for closing the valve as a result of the torque change request, wherein the variable point in time is shifted in the working cycle relative to the fixed point in time in dependence on the target value of the gas pressure.

Method and control unit for carrying out a gas exchange in a cylinder of an internal combustion engine and internal combustion engine having such a control unit

A method for detecting glow ignition of a fuel-air mixture in a combustion chamber of an internal combustion engine having at least one first cylinder and at least one second cylinder, the at least one first and second cylinders being connected by a crankshaft, according to which method partial segment times of the at least one first cylinder are measured. The method is characterized in that partial segment times of the at least one second cylinder are measured and a reference characteristic for the glow ignition is formed by a comparison of partial segment times of the at least one first cylinder with partial segment times of the at least one second cylinder and subsequently a signal is generated for the detection of the glow ignition on the basis of the comparison.

Method and device for detecting glow ignition of an internal combustion engine in a motor vehicle

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Braunschweig, Germany

Stefan Klie