Patent ID: 6807941
Filing Date: 2004-10-26
Classification: F02D,F02P,Y02T

Abstract:
A method for controlling a vehicle engine according to the temperature of its exhaust pipe, of the type comprising the steps of determining a minimum ignition angle from several possible values comprising a stalling-speed angle (MIN, MINTEG), on the basis of predetermined logic and of engine operating parameters, characterized in that it includes a step in which the ignition angle (IGA) is returned to a stalling ignition angle (IGA_MIN) for a period which lasts as long as the temperature (TEG) at the inlet to the exhaust pipe does not exceed a given threshold, and, as soon as the temperature (TEG) exceeds a certain threshold value, the ignition angle (IGA) is brought to a second value (IGA_MIN_TEG) that takes account of the exhaust temperature (TEG).