A system and method for operating high speed solenoid actuated devices

摘要

A system and method for operating high speed solenoid actuated devices such as electromagnetically operated high pressure fuel injectors require an initial high power boost to start the movement of an armature followed by a medium power boost to continue the movement of the armature to its end position and a low power control to hold the armature at its end position so that when the power is removed, the armature returns to its rest or beginning position. The system here details the logic and control necessary to provide six stages of power control, including both voltage and current control, to accomplish high speed operation both in moving the armature from its beginning to end position but also to return the armature from its end to its beginning position.