Patent ID: 6483689
Filing Date: 2002-11-19
Classification: F01L,F02D,H01F

Abstract:
Method for controlling an electromechanical servo mechanism which has an adjuster (12) and a driver (11) which has a first electromagnet with a first coil (113), a second electromagnet with a second coil (115), first and a second springs (118a, 118b) which bias the armature plate (117) to a given rest position (R), and a controller (B7, B8) being associated with the plunger (121) for each coil, a control variable of which is the current through the coil (113, 115), with the following successive steps comprising:establishing a holding value (I_H) as a set value of the current through a first one of the first and the second coils (113, 115) while the armature plate (117) rests in contact with a corresponding first one of the first and second electromagnets up to a moment of time (t1), establishing a null value (I_N) as the set value while the armature plate (117) moves away from the first one of the first and second electromagnets for a duration (T1), establishing a deceleration value (I_B) as the set value for a second duration (T2), and establishing the null value (I_N) as the set value.