Patent ID: 6176207
Filing Date: 2001-01-23
Classification: F01L,H01F

Abstract:
An electronic control system for controlling the movement of an armature in an electromechanical actuator, the system comprising:a timing generator generating a plurality of pulsed electrical signals, said signals and the time between said signals representing the operational timing of the actuator;an armature having a first position and movable to a second position in response to said pulsed electrical signals;a spring bias means for biasing said armature in said first position, said spring bias means having a defined spring rate;a stator in said second position, said stator having a winding with a first and second terminal;an electrical circuit means electrically connected to said winding and operable in response to said timing generator to supply a voltage to said winding for generating magnetic flux in said stator, said magnetic flux operable to attract said armature;a magnetic flux sensor operatively attached to said stator and responsive to said magnetic flux generated therein; andcontrol means operatively connected to said flux sensor, said control means responsive to said timing generator for responding to a rate of change of said magnetic flux to modify the rise of magnetic flux in said stator for matching the spring rate of said spring bias means to control the impact velocity of said armature against said stator.