Patent ID: 6659072
Filing Date: 2003-12-09
Classification: F02B,F02D,Y02T

Abstract:
A method of monitoring an interval ([t9âˆ’t2]) between a first injection operation and a second injection operation of a combustion cycle in a cylinder of an internal combustion engine in which the individual injection operations are controlled by an electrical actuator element, comprising the following steps:determining whether the actuator element (12, 13) has fully opened after the first injection operation; determining whether the energizing sequences (27, 28) of the electrical actuator element (12, 13) for the first injection operation and for the second injection operation overlap; and modifying the interval ([t9âˆ’t2]) if the electrical actuator element (12, 13) has not fully opened after the first injection operation or if the energizing sequences (27, 28) of the electrical actuator element (12, 13) overlap.