Daimler Chrysler Ag

Igor Gruden

Kurt Maute

Klaus Wunderlich

Guido Vent

Helmut Gimmler

Stefan Pischinger

Thomas Ganser

Charles Robert Koch

Peter Klein

Ulrich Nester

Kai Holdgrewe

Rolf-Guenther Nieberding

Rainer Kessler

Jochen Sch&auml;flein

In a method for operating a four-stroke internal combustion engine with a homogeneous, lean basic mixture of air and fuel and with compression ignition, the fuel/air ratio formed in the combustion space is variable by means of a controllable inlet member. In order to achieve as rapid adaptation as possible to varied combustion sequences, a measurement of the respective combustion is carried out and the time of closing of the inlet member of the combustion space is regulated, for a next successive cycle, as a function of the signal obtained from this measurement.

Method for operating a four-stroke internal combustion engine

A method for adjusting an internal combustion engine with variable valve timing wherein the current position of the accelerator pedal is associated with a set air mass and a set pressure. The set pressure is compared with a reference pressure and control of the set air mass takes place via the throttling device in the intake pipe when the pressure falls below the reference pressure, and control of the set air mass is carried out via the engine valves when the pressure exceeds the reference pressure.

Method and apparatus for adjusting an internal combustion engine with variable valve timing

A method for determining internal pressure in the cylinders of an internal combustion engine by measuring and analyzing structure borne noise signals using a neural network.

Method for determining relevant variables representing the pressure in the cylinders of an internal combustion engine

An engine exhaust silencer arrangement with a variable geometry, which is controlled by control elements in dependence of engine data. The increased exhaust noise occurring during engine operation under differing engine stroke modes is suppressed by the different geometry of the silencer arrangement.

Exhaust silencer for an internal combustion engine and the method of operation

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Leonberg, Germany

Igor Gruden