Zf Friedrichshafen Ag

Dennis Egler

Matthias Kram

Matthias Reisch

Christoph Sasse

Wolfgang Grosspietsch

Erwin Wack

Jörg Sudau

Thomas Dögel

Andreas Orlamünder

Axel Rohm

Daniel Lorenz

Ingrid Hoffelner

Volker Stampf

Steffen Matschas

Bernd Unseld

Tobias Höche

Tobias Dieckhoff

Johannes Friess

Christofer Ebert

Angelika Ebert

Kyrill Siemens

Daniel Pittner

Michael Wirachowski

Lukas Spath

Mathias Kopp

Armin Stürmer

Oliver Andres

Ying Dong

Friedrich Kokott

Simone Vierneusel

Mathais Kopp

Wolfgang Groasspietsch

A method for transmission of and damping of a mean torque with a superposed alternating torque in a torque transmission arrangement for a powertrain of a motor vehicle having an input and an output. The mean torque with the superposed alternating torque is transmitted along a torque path from the input the output. The input rotates at an input speed and the output rotates at an output speed. A slip arrangement is provided in the torque path between the input and the output for generating a speed slip. The slip arrangement provides a maximum of an external activation of the speed slip in the area of a maxima of at least one periodic oscillation component of an alternating component and provides a minimum of an external activation of the speed slip in the area of a minima of at least one periodic oscillation component of the alternating component (new).

Method for transmitting and dampening torques

A method for the transmission and damping of a mean torque with a superposed alternating torque in an arrangement having an input and an output. The mean torque and superposed alternating torque are transmitted along a path from the input to the output. A slip arrangement is provided in the torque path between the input and the output for transmitting mean torque and superposed alternating torque and for generating a speed slip between an input speed and an output speed in the path. The slip arrangement provides a maximum of an external activation of the speed slip in the area of the maxima of at least one periodic oscillation component of the alternating component and provides a minimum of an external activation of the speed slip in the area of the minima of at least one periodic oscillation component of the alternating component.

Method for transmitting and damping torques

A method for the transmission and damping of a mean torque with a superposed alternating torque having an input and an output. The mean and superposed alternating torque is transmitted along a torque path from the input to the output area. An input speed is a mean speed and a superposed alternating component. A slip arrangement is provided in the torque path between the input and the output for transmitting the mean and superposed alternating torque and generating a speed slip between an input speed and an output speed. The slip arrangement provides a maximum of an external activation of the speed slip in a area of the maxima of at least one periodic oscillation component of the alternating component and provides a minimum of an external activation of the speed slip in an area of the minima of at least one periodic oscillation component of the alternating component.

A torsional vibration damper has a damper mass carrier at which is received at least one damper mass movable relative to the damper mass carrier and with at least one stop. The at least one damper mass has a stop side with a geometric shaping. At least one stop is associated with the damper mass, and has an axial overlap with the at least one damper mass in extension direction of a central axis and a stop profile at its side facing the stop side of the damper mass. At least one stop receiver is associated with the least one stop for the at least one damper mass. The geometric shaping which is provided at the at least one damper mass has a first contact region operative at least substantially in radial direction and a second contact region operative at least substantially in tangential direction. The first contact region can be brought into operative connection with the stop, and the second contact region can be brought into operative connection with the stop receiver.

Torsional vibration damper

A mass damper system includes a damper mass carrier having movable damper mass and a stop. The damper mass moves within a predetermined movement region during an operating state. A first movement region portion bounded by an initial position in which the damper mass is free from a deflection in circumferential direction and by a limit position in which the damper mass has undergone a deflection, and a second movement region portion defined by the limit position and a stop position in which the damper mass has come in contact with the stop. At a side facing the stop, the damper mass has a proximity profile that correspond to a stop profile such that in the first movement region portion the damper mass remains within a residual distance region relative to the stop in one extension portion of the proximity profile.

Absorber system

A torsional vibration damper is provided with a damper mass carrier at which is received at least one damper mass that is movable relative to the damper mass carrier and at least one stop. The at least one stop is associated with each stop side of the at least one damper mass. The at least one damper mass and the stop have an extension in extension direction of a central axis. The at least one damper mass has a plurality of damper mass elements in extension direction of the central axis, while the stop has in extension direction of the central axis a stop profile at its side facing the stop sides of the damper mass elements. The stop profile has different radial distances from the central axis in association with the damper mass elements.

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Espenau, Germany

Dennis Egler