Zf Friedrichshafen Ag

Ingo Lippenberger

Peter Ziemer

Christoph Margraf

Thomas Riedisser

Matthias List

Hagen Doepfert

Reinhard Deppert

Florian Pöhnlein

Rainer Grundler

Ulrich Doerr

Christoph Braun

Sebastian Grimm

Uwe Schraff

Markus Strobel

Stefan Hakspiel

Michel Wetterau

Frank Schneider

Andreas Wildbrett

Harald Tiesler

Ralf Schmieder

Dominic Bezikofer

A gear set arrangement () for a bicycle gearbox () includes a planetary assembly, a stationary component (), a first and a second brake (B, B), and a first and a second freewheel clutch (F, F). One planetary gear set () of the planetary assembly includes a first rotary element, a second rotary element, and a third rotary element. The first rotary element is rotationally fixable on the stationary component () by the first brake (B). The first rotary element is connectable to the output () by the first freewheel clutch (F). The second rotary element is rotationally fixable on the stationary component () by the second brake (B). The second rotary element is connectable to the output () by the second freewheel clutch (F). The third rotary element is connected to the input () for conjoint rotation. The gear set arrangement () is configured to provide three ratios.

Gear set assembly and bicycle gearing system

A control bus () permits the transmission of a message () of a predetermined message length. A method () for transmitting pieces of information on the control bus () includes transmitting a message (). The message includes a first field () and a second field (). The first field () contains a variable reference to a type of information, and the second field () contains a piece of information of the type of information referred to in the first field ().

Transmission system for control data

An oil pump drive device () may include a housing (G), an oil pump drive shaft (AN), an electric motor, and a planetary gear set (RS). The planetary gear set (RS) may be supported by the housing (G) and have a first element (E) connected to a rotor (R) of the electric motor, a second element (E) connected to the oil pump drive shaft (AN), and a third element (E) drivable by a drive source located outside the oil pump drive device (). A first bearing (L) may be supported on the housing (G) and may support at least one of the elements (E, E, E) of the planetary gear set (RS) in a radial direction. The stator (S) of the electric motor is at least partially surrounded by a plastic mass (K), where the stator (S) is attached to the housing (G) via the plastic mass (K).

Oil pump drive device

A component of a transmission device, which rotates around a central axis and is adjustable in an axial direction, includes with an encoder contour on the circumference of the component that interacts with a sensor device. The encoder contour features at least one area provided for calculating the axial position of the component, whereas a surface of the first area is designed with a varying radial extension along the axial direction relative to the central axis. The encoder contour has second areas for calculating the rotational speed of the component, whereas a slope of a radial surface of the second areas in the axial direction is differentiated from a slope of the surface of the first areas in the axial direction. In the circumferential direction of the component, the encoder contour is designed alternately with first areas and second areas.

Component part, device and method for determining an axial position of a component part and for determining a rotary speed of the component part

Growing community of inventors

Weingarten, Germany

Ingo Lippenberger