Volkswagen Ag

Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg

Jörg Fähland

Rainer Hofmann

Bernd Cappelmann

Martin Seufert

Josef Glatthaar

Ansgar Damm

Günter Rühle

Matthias Beck

Lothar Herdle

A transmission configuration includes an automated dual-clutch transmission having two transmission sections with respective input shafts, respective output shafts and respective motor clutches. The motor clutches are connected, on a motor side thereof, to a drive shaft and to a respective one of the input shafts on a transmission side thereof. A drive-side speed sensor unit is disposed at the drive shaft. An input-side speed sensor configuration includes sensor wheels connected, fixed against relative rotation, to respective ones of the input shafts, and pulse sensors disposed stationary with respect to a housing and within an effective range of the respective sensor wheels. The input-side speed sensor configuration is configured to detect a speed of the input shafts and a direction of rotation of at least one of the input shafts. A method for controlling an automated dual-clutch transmission is also provided.

Transmission configuration and method for controlling a transmission

A method for determining a transmittable torque of a clutch of an automatic transmission of a motor vehicle, in particular an automated shift transmission, uses the clutch for transmitting torque from an engine shaft to a transmission input shaft and uses a synchronizing device for selectively engaging and disengaging a gear stage in the automatic transmission. The gear stage is pre-synchronized with the synchronizing device by applying a given synchronizing force to the synchronizing device but without engaging the gear stage. Speeds of the engine shaft and of the transmission input shaft are measured. The torque transmitted by the clutch is determined by comparing the speeds of the engine shaft and of the transmission input shaft while taking into account a current synchronizing force.

Method for determing a transmittable torque of a clutch in an automatic transmission of a motor vehicle

Growing community of inventors

Sassenburg, Germany

Jörg Fähland