Anordnung zum Betätigen einer Schaltvorrichtung eines Zahnräderwechselgetriebes und zum Ein- und Ausrücken einer Haupt-Kupplung

摘要

The gear change system has a single servo motor (15) driving a reduction gearing (14). The gearing powers the linear drive (8) for the main clutch (7) as well as the reciprocating drive (11) for the gearbox (6) selector. The gearbox selector is coupled to the servo by a clutch (16) to adjust the timing of the gear change to minimise the overall gear change period. The servo drive for changing the gear ratio can already be initiated before the main clutch has been fully disengaged, by having the existing gear ratio fully disengaged before the clutch is fully open and by starting the move to the new gear ratio. The reduction gearing comprises a worm drive and the servo drives are eccentric drives.