Patent ID: 7920956
Filing Date: 2011-04-05
Classification: F02D,Y02T

Abstract:
1. A method of controlling the combustion of a compression ignition engine, comprising: determining setpoint values for physical parameters linked with intake of gaseous oxidizer in a combustion chamber, and a setpoint value for a crank angle at which fuel has to be injected into the combustion chamber, the setpoint values being determined to optimize combustion and controlling actuators of an engine control system so that the values of the physical parameters are equal to the setpoint values including correcting the setpoint values before the physical parameters reach their setpoint values, by calculating a correction to be applied to the setpoint value so that a crank angle at which a percentage of the fuel is consumed during combustion is equal to a reference value of the angle for optimum combustion, and controlling fuel injection into the combustion chamber when the crank angle is equal to the corrected setpoint value to optimize combustion.