Patent ID: 7121083
Filing Date: 2006-10-17
Classification: F02D,Y02T

Abstract:
1. A combustion control apparatus for an internal combustion engine having an exhaust gas purifier in an exhaust passage, comprising a controller that controls supply of fuel and air to the engine; the controller being configured to: produce preliminary combustion at or near compression top dead center and main combustion after an end of the preliminary combustion under a predetermined condition based on a condition of the exhaust gas purifier; determine a target air quantity by adding an increase correction to the target air quantity based on a torque correction value and determine a target fuel injection quantity by calculating the target fuel injection quantity from an actual air quantity and a target air/fuel ratio; and determine a fuel injection quantity for the preliminary combustion in a way as to enable an incylinder temperature at a time of fuel injection for the main combustion to be higher than a self-ignitable temperature.