| 摘要 |
<p>The invention relates to a method for controlling a pulse screwdriver device which includes an electric motor in which the rotor is connected, by means of a transmission having a clearance, to an end member which can be rotated, said rotor being rotatably movable between: a maximum retracted position in which said clearance is maximal in the driving direction; and an impact position in which said clearance is taken up in the driving direction, said method including at least one driving phase including at least one impact cycle that includes: a driving supply step of said motor by an electric pulse, said rotor passing from said maximum retracted position to said impact position, such that the rotor accumulates kinetic energy while taking up said clearance and then transmits same during a driving torque impact to said end member via said screwdriver device, which tends to turn by reaction about the axis of rotation of said end member in the unscrewing direction; a stabilisation step including a step of controlling the supply of said motor, said control step making it possible to move said screwdriver device substantially into the angular position about the axis of rotation of said end member that was occupied by same at the start of said impact cycle.</p> |
