METHOD FOR CONTROLLING A SCREEN, AND ACTUATOR SUITABLE FOR SUCH A METHOD

摘要

The invention relates to a screen (1) including a load bar (2), a flexible element (3) supporting the load bar, and a controlled member (4) for winding the flexible member, wherein the member is controlled according to a method that comprises controlling the angular movement of the winding member (4) with a temporal set value (?(t)) of the instantaneous angular position of the winding member, said temporal set value being predetermined from a profile representative of the desired instantaneous axial position for the load bar upon a movement between the first and second positions, using a polynomial function of a degree higher than or equal to 2, which approximates the relation between a value of the instantaneous axial position (H(t)) of the load bar and an instantaneous angular position (?(t)) of the winding member (4).