Patent ID: 6786193
Filing Date: 2004-09-07
Classification: F02D,F02P,Y02T

Abstract:
A method for setting the instant of opening of a fuel injector (3) in at least one (1) of the cylinders of a direct-injection internal combustion engine, notable in that:a) a series of sparks is emitted into said cylinder (1), filled with an air/fuel mixture to be ignited, at predetermined successive instants, b) the one of said sparks that initiates said ignition of said mixture is identified, c) the time difference separating the instant of emission of said spark from a predetermined ignition instant able to ensure that said engine supplies a predetermined mechanical power is evaluated, and d) the instant of opening of said fuel injector (3) is corrected as a function of said difference, so as to initiate subsequent ignitions of the air/fuel mixture in said cylinder (1) at said predetermined instant.