Abstract: A method for the damping of mechanical vibrations in the drive train of an internal combustion engine by detection of vibration excitations in the drive train, and adjustment of the ignition angle of the internal combustion engine in the event of the occurrence of a vibration excitation in the drive train, in order to damp the vibration in the drive train, the adjustment of the ignition angle taking place in a flexible way.

Abstract: Method for the damping of mechanical vibrations in the drive train of an internal combustion engine Method for the damping of mechanical vibrations in the drive train of an internal combustion engine, having the following steps:

Abstract: A method for adapting a starting injection timing to a pressure of ambient air includes storing in memory a correction factor representing an ambient air pressure when an engine is turned off. A value for a starting injection timing is modified with the correction factor, upon a starting process.

Abstract: The method and associated apparatus ascertain an air value which is used in the mixture preparation in the event of pulsations of air in the intake tube of an internal combustion engine. During each intake stroke of a cylinder of the engine, a maximum value and a minimum value of an air flow are ascertained from measured values furnished by an air flow rate meter. A differential value is formed from a magnitude of the two extreme values. And the differential value is compared with a predeterminable threshold value. For air/fuel mixture is prepared on the basis of the air value. If certain conditions apply, the processor switches over from the measured values furnished by the air flow rate meter to predetermined substitute values from a substitute performance graph.