Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg

Avl List Gmbh

Volkswagen Ag

Getrag Innovationscenter Getriebe-und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg

Getrag Transmission Corporation

Thien Edrives Gmbh

Atb Technologies Gmbh

Josef Glatthaar

Martin Seufert

Ralph Richter

Peter Ebner

Gusztav Gulyas

Stefan Strobl

Richard Schneider

Reinhard Klein

Vincenzo De Gioia

Roberto Tirelli

Frank Thullner

Tobias Kalisch

Rainer Hofmann

Bernd Cappelmann

Günter Rühle

Ansgar Damm

Jörg Fähland

Lothar Herdle

Matthias Beck

Jurgen Wagner

Bruce J Palansky

Ralf Hettich

Armin Tonn

Stefan Thum

Oliver Ottinger

Rainer Rinck

Marius Bryzgalski

Joerg Moellmann

Jürgen Wagner

Andreas Pawlenka

Markus Schürlein

Markus Jung

A system and method for maintaining the operation of an automated transmission (), particularly a dual dutch transmission, for a motor vehicle, in case of a failure of an engine speed sensor () or a bus connection () between a first control module () controlling an engine () being connectable to the transmission () through at least one separation clutch (), and a second control module () controlling regulating units () for connecting the engine () to the transmission () or to one or more driving wheels () in a force-transmitting manner, wherein gear-shift relevant data, particularly a number of revolutions (n) of the engine, is exchanged between the control modules () over the bus connection ().

System and method for operating a dual clutch transmission during failure of an engine speed sensor or a bus connection between control modules

A method for opening a closed clutch arrangement of a drivetrain for a motor vehicle. The clutch arrangement is activated in such a way that the torque which it can transmit is reduced up to an opening point at which torque can no longer be transmitted via the clutch arrangement. The clutch arrangement is placed into an intermediate slip state before the opening point is reached.

Method for activating a clutch arrangement

The invention relates to a method for controlling the start-up phase of a motor vehicle driven by an internal combustion engine (). The internal combustion engine () is started by an electrical machine () that can be operated as a motor, and there is a preferably automatically actuatable clutch () in the drive train () between the internal combustion engine () and the electrical machine (). A faster start-up response can be achieved if the internal combustion engine () is driven by the electrical machine () when the clutch () is engaged during start-up, and if the clutch capacitance (M) is reduced according to a defined parameter, preferably the engine speed, the time or the torque (M) of the electrical machine () or similar.

Method for controlling the start-up phase of a motor vehicle

A method for detecting a fault state in an automated motor vehicle gearbox having two parallel branches. Each branch has a clutch and is configured to transmit driving torques from a drive unit to at least one driven wheel of the motor vehicle. The method comprises the steps of sensing whether both clutches are at least partially closed; of sensing the rotational speed of the at least one driven wheel and sensing the rotational speed of a non-driven wheel, and of detection of a fault state if both clutches are at least partially closed, and a difference between the rotational speeds of the wheels is greater than a predetermined reference value.

Fault-detection methods for motor vehicle gearboxes

A method for controlling the start-up phase of a motor vehicle driven by an internal combustion engine () wherein the internal combustion engines () is started by an electrical machine () that can be operated as a motor, a preferably automatically atuatable clutch () being located in the drive train () between the internal combustion engine () and the electrical machine (). A faster start-up response can be achieved if the internal combustion engine () is driven by the electrical machine () when the clutch () is engaged during start-up, and if the clutch capacitance (M) is reduced according to a defined parameter, preferably the engine speed, the time or the torque (M) of the electrical machine () or similar.

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

Growing community of inventors

Oberndorf, Germany

Josef Glatthaar