INTERNAL COMBUSTION ENGINE FUEL INJECTOR CONTROL SYSTEM

摘要

A system (1) presenting a number of actuator circuits, each including a capacitor (C1), and a first controlled switch (SWi) interposed between the coil of an injector (Li) and a reference line, for permitting supply of the injector (Li) by the capacitor. A second controlled switch (SWR) is interposed between a capacitor line and an injector supply line (104). The system (1) also presents an electronic control unit (12) for controlling switching of the first (SWi) and second (SWR) switches, so as to supply the injectors with current presenting a high-amplitude portion with a rapid leading edge, a slowly increasing portion, and a portion with an amplitude oscillating about a mid value.