Patent ID: 6446601
Filing Date: 2002-09-10
Classification: F02D,F02P,Y02T

Abstract:
A method for an ignition control for an internal combustion engine with respect to an occurrence of a load dynamic, comprising the steps of:determining an ignition control variable from a stored engine characteristics map based on detected operating parameters; detecting a load gradient; comparing the detected load gradient with a specifiable first dynamic threshold and an output of a specifiable dynamic derivative action that retards the ignition control variable if the detected load gradient exceeds the specifiable first dynamic threshold; performing a comparison between the detected load gradient and a specifiable second dynamic threshold that is greater than the specifiable first dynamic threshold; and adapting stepwise the specifiable dynamic derivative action so that the ignition control variable is advanced if the detected load gradient exceeds the specifiable second dynamic threshold and if a specifiable proportion of knock-free combustions is present in a dynamic phase.