The method of fading out the obstacle noise at the time of the knocking detection in the internal combustion engine and obstacle

摘要

The present invention provides an apparatus and failure noise fade-out way of knocking detection in an internal combustion engine. The following functions are performed here, ie: to form the sensor signal integration between the value of (MF) time measurement window of the sensor signal of the knock sensor (KI); correction value value integral signal sensor with respect to the (KI) (DKI formed correspondingly failure noise during the measurement time window (MF) a); in order to form a sensor signal integral value of the modified noise interference is fading out (KI `), and sensor corrected value (DKI) I subtract value from the signal integration (KI).