FORMSCHLÜSSIGE KUPPLUNG FÜR VERTEILERGETRIEBE UND AUSGLEICHSGETRIEBE VON KRAFTFAHRZEUGEN, VERTEILERGETRIEBE UND AUSGLEICHSGETRIEBE MIT SOLCHEN KUPPLUNGEN UND VERFAHREN ZU DEREN BETÄTIGUNG.

摘要

A coupling 15 for the transfer gear or differential locks of motor vehicles comprises two coupling parts 16, 17, one of which 17 is constantly acted upon in the disengaging direction by a spring 63, a control element 20 acting on this for a first time interval T1 in order to engage it. If the engagement is not successful, this process is repeated after a second time interval T2 has lapsed or, if successful, it is maintained for a third time interval T3. As long as the coupling 15 transmits a torque in excess of a defined limit, it remains engaged due to friction of the coupling parts (16, 17). If it falls below this limit, it is disengaged by the force of the spring 63. The control unit bringing about the engagement and the control process exerted by it are also described.