Patent ID: 6661636
Filing Date: 2003-12-09
Classification: F01L,H01F

Abstract:
A method for controlling an electromechanical actuator drive for driving an actuator element, the electromechanical actuator drive including a coil former having a coil, an armature and an end side facing the armature and forming stops for the armature to define a limit position of the actuator element, the method which comprises the steps of:providing a supply voltage for generating a coil current; energizing the coil with the coil current for holding the actuator element in a limit position in which the armature abuts the end side; switching-off an energization of the coil a given time period before a point in time of release of the actuator element from the limit position; and determining the given time period while the actuator element is held in its limit position in dependence on at least one of the coil current and the supply voltage, and measuring the given time period while the actuator element is held in its limit position.