DISPOSITIVO DI COMANDO AUTOMATICO PER CAMBIO DI VELOCITA' A RUOTE DENTATE A PIU' VIE E CON RUOTE FOLLI ACCOPPIABILI CON IL LORO ALBERO PER MEZZO DI UN ACCOPPIAMENTO A RUOTE DENTATE.

摘要

A method and apparatus is provided for automatic shifting of a multi-path, toothed-wheel gear change box with at least two gearbox subunits in parallel to one another in the power transmission path between an input shaft and an output shaft and having loose wheels which can be coupled to their shaft in each case by a gearwheel clutch. A starting shift condition is selected if the vehicle is at a standstill, in which condition both the gearwheel clutch connected to the loose wheel of the gearwheel stage of the reverse gear and the gearwheel clutch of that gearwheel stage which forms the lowest of the gears, which are independent of the power-shift clutch of the gearbox subunit with the gearwheel stage of the reverse gear, are engaged.