Automatic gearbox has one planetary gear driving two forward gears and one planetary gear driving only one forward gear with intermediate ratio lying between the other two forward gears.

摘要

The automatic gearbox has one planetary gear (2-4) driving two forward gears and one planetary gear (2a-4a) driving only one forward gear with its transmission ratio lying between the other two forward gears. The intermediate gear has permanently engaged gear wheels (8a,19a) and is controlled only by a brake (6a) and clutch (9a). In front-engine, rear drive, rear gearbox vehicles the starter motor and generator or substitute machine can be mounted in the rear.