Daimler Chrysler Ag

Axel Geiberger

Steffen Henzler

Guenter Woerner

Andreas Kolb

Juergen Schweitzer

Ralf Sperber

Heinrich Straub

Markus Heizel

A transmission for a motor vehicle, such as a motor vehicle EVT, is configures so that the number of teeth of the first planet gear of the epicycloidal gear train, operatively connected to the output toroidal disks by the first sun gear, and of an output element of the epicycloidal gear train form a ratio not equal to one. The transmission ratio of the toroid variator can be varied in such a way, and the number of teeth of the first planet gear of the epicycloidal gear train and of an output element of the epicycloidal gear train are configured in such a way that an output shaft speed approximating zero can be selected according to the variator.

Continuously variable vehicle transmission

A change-speed gearbox has an input shaft connected to an output shaft by at least one first and one second component transmission, arranged parallel to one another in the power flow and each having a frictional power-shift clutch and an intermediate shaft. The intermediate shaft can be operatively connected to the input shaft by the power-shift clutch, with at least one gearbox constant per component transmission. Each gearbox constant has a gearwheel on one of the two intermediate shafts, at least one of which can be operatively connected to a first layshaft arranged parallel to the input shaft. At least one gearbox constant can be brought into an operative connection with the first and the second power-shift clutch.

Gear wheel variable transmission with two sub-gears arranged parallel to each other in the power flow

Growing community of inventors

Stuttgart, Germany

Axel Geiberger