Engine knock detection in front of the direction of which the pass band of a sensor signal band pass filter is established as a function of the crankshaft angle

摘要

In the case of an engine knock detection in front of the direction, which receives a knock sensor signal, which vibrations in an internal combustion engine, and on which a band pass filter processing performs on the sensor signal, in order to be taken from a signal component, which indicates knocking in the engine, during each of the corresponding combustion stroke intervals the center frequency and / or the width of a filter inlet area by a function of changes in set, which during each combustion stroke interval in the distribution of the sensor signal components may occur, which are characteristic for the knocking.