Patent ID: 6792912
Filing Date: 2004-09-21
Classification: F02D,Y02T

Abstract:
A combustion control system for a direct fuel injection spark ignition engine comprising:a target fuel pressure acquiring section configured to acquire a target fuel pressure required to resume fuel injection based on operating conditions existing when fuel injection is determined to be resumed after a prescribed amount of time has elapsed since fuel injection was temporarily stopped due to occurrence of prescribed operating conditions; an actual fuel pressure detecting section configured to detect an actual fuel pressure inside an accumulator of a high-pressure fuel delivery system when fuel injection is determined to be resumed; a timing acquiring section configured to acquire a fuel injection timing and an ignition timing required to resume fuel injection based on the operating conditions existing when fuel injection is determined to be resumed; and a first timing control section configured to compare the target fuel pressure and the actual fuel pressure and modify at least one of the fuel injection timing and the ignition timing based on a result of the comparison when fuel injection is to be resumed.