| 摘要 |
<p>To recognize a reverse position, in particular a park position, according to the invention a reference run of the drive is initiated in which a protrusion (8) disposed on the driven side is moved toward a stop (9), wherein the control unit (7) comprises an electronic blocking recognition for recognizing the reverse position as soon as the protrusion (8) reaches the stop (9) and the motor (2) blocks. The recognition of the rotational angle is then done relative to the recognized reverse position, wherein the control unit (7) determines the rotational angle by evaluating the motor current and/or a parameter derived therefrom, in particular through ripple count measurement.</p> |
