Patent ID: 6584961
Filing Date: 2003-07-01
Classification: F02D

Abstract:
A method for driving an injector (2) in an internal combustion engine (3), in which method a current wave (Iinj) which is variable over time, which comprises an initial section (T1, T2, T3) having a relatively high current intensity (Iinj) and a subsequent final section (T5) having a relatively low current intensity (Iinj), is caused to circulate through a control circuit (4) of the injector (2), the method being characterised in that the current wave (Iinj) comprises an intermediate section (T4) between the first and second sections (T1, T2, T3; T5) during which the current intensity (Iinj) is rapidly reduced to substantially zero values; the current intensity (Iinj) being maintained substantially constant and equal to a first predetermined value (Im) during the final section (Tb) by applying a first and second voltage value, different from one another, cyclically to the control circuit (4) of the injector (2).