A method and device for the determination of one or more fuel in a cylinder of an internal combustion engine the beginnings of a cylinder pressure curve provided

摘要

The present invention relates to a method for determining the moment of a start of combustion in a cylinder (4) of an internal combustion engine (3). The method comprises the steps of:- Providing a base - compression pressure model, in which the operating point, a curve of a compression pressure (p_comp) in the cylinder (4) indicates;- Adaptation of the base - compression pressure model with the measured cylinder pressures of at least one operating state of the internal combustion engine (3) at times, in which no combustion in the cylinder (4) takes place, in order to obtain adapted compression pressure model; and- Detecting a point in time of a start of combustion on the basis of a by the adapted compression pressure model specific pressure course.