Device and method for controlling an electromagnet controlling a metering valve of an internal combustion engine fuel injector

摘要

The device has an electric circuit for generating a first electric current of such a predetermined value as to excite the electromagnet to open the metering valve, and a second electric current of a lower value such as to keep the electromagnet excited; and timing means for controlling the electric circuit as a function of operating conditions of the engine. The timing means also control the electric circuit in such a manner as to vary the duration of the first current as a function of the operating temperature of the engine.