METHOD FOR CONTROLLING A STEP MOTOR FOR ACTUATING A MECHANICAL PART

摘要

The invention relates to a method for controlling a step motor (3) for actuating a mechanical pat (2), comprising the steps of: receiving a position set-point signal (XC) of the mechanical part (2); generating a control signal (SC); outputting the generated control signal (SC) to the step motor (3). The control method of the invention is characterised in that the generated control signal (SC) includes a predetermined number (n) of decreasing or so-called acceleration (t) duration pulses followed by so-called cruise pulses having a constant duration lower than the acceleration pulse durations (t), the duration of the first acceleration pulse being calculated so that the starting torque (CD) of the motor (3) is higher than the blocking torque of the motor (3) and/or the mechanical part (2).