Method for controlling a fuel injector according to a...

Details Method for controlling a fuel injector according to a... Method for controlling a fuel injector according to a...

2006-01-03

2006-01-03

Kwon, John T. (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C239S585100, C361S154000

Reexamination Certificate

active

06981489

ABSTRACT:
A method for controlling a fuel injector provided with an electrically operated electomagnetic actuator in such a manner as to open the injector for a determined injection time; the method providing that the injector be operated with a first current waveform if the injection time is greater than a predetermined threshold value, and that the injector be operated with a second current waveform if the injection time is less than the predetermined threshold value; both the current waveforms have an identical initial portion, during which the current passing through the injector is caused to rise until it reaches a peak value, which is maintained by cyclic switching of the voltage applied to the injector between two different values.

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