Patent ID: 8165779
Filing Date: 2012-04-24
Classification: F02B,F02D,Y02T

Abstract:
1. A computer readable storage device having stored data representing instructions executable by a computer to operate an internal combustion engine provided with at least a first cylinder, which engine comprises at least one fuel injector through which fuel is introduced into a combustion chamber for the first cylinder, a piston in the first cylinder whose compression causes an air and fuel mixture to be ignited, at least one intake valve admitting air into the first cylinder, at least one exhaust valve for exhausting combusted gases from the first cylinder, and at least one sensor for measuring an engine operation, parameter in the first cylinder, the computer readable storage device comprising: instructions for a valve operation controller to close the exhaust valve before top dead center during an exhaust stroke of the piston in the first cylinder and open the intake valve between top dead center of the exhaust stroke and top dead center of a compression stroke in the first cylinder; instructions for a fuel injection controller to control a fuel amount injected into the first cylinder to perform at least one first fuel injection in the first cylinder before top dead center of the piston exhaust stroke in the first cylinder and at least one second fuel injection in the first cylinder between top dead center of the piston exhaust stroke and top dead center of the compression stroke in the first cylinder; and instructions for the valve operation controller to determine the opening and closing of the valves of the first cylinder on the basis of the first injection or injections.