| 摘要 |
<p>The invention relates to a drive system for an entry/exit facility with at least one pivotably and/or slidably mounted door, ramp, tread or the like of a passenger transport vehicle. It comprises at least one actuator or drive motor (1, 24) and a mechanical system (3.3, 3.4) driven by it and/or a gear unit (2, 4, 26) for effect-ing the pivoting or sliding movement of the door, ramp, tread or the like, with an absolute value encoder (7, 34) for acquiring a momentary position during the pi-voting or sliding movement. An evaluation unit is configured to compare the momentary position with at least one reference position stored in a non-volatile memory of the evaluation unit in order to generate an output signal dependent thereon. The absolute value encoder (7, 34) is flange-connected to a pin that fix-es the pivoting movement of the door, ramp, tread or the like, and the gear unit comprises a first reduction gear unit (2), a second reduction gear unit (4), and a controllable coupling (3.3, 3.4) is provided between the reduction gear units.</p> |
