Zf Friedrichshafen Ag

Friedrichshafen Ag

Other

Zf Friedrichshafen

Zp Friedrichshafen Ag

Zr Friedrichshafen Ag

Zf Friedrichsahfen Ag

Stefan Beck

Christian Sibla

Wolfgang Rieger

Michael Wechs

Johannes Kaltenbach

Peter Ziemer

Matthias Horn

Uwe Griesmeier

Jens Moraw

Gerhard Gumpoltsberger

Josef Haupt

Gerhard Niederbrucker

Viktor Warth

Martin Brehmer

Gert Bauknecht

Fabian Kutter

Juri Pawlakowitsch

Matthias Reisch

Raffael Kuberczyk

Thomas Martin

Stephan Scharr

Timo Wehlen

Eckehard Münch

Julian King

Bernd Knöpke

Lara Ruth Turner

Michael Roske

Max Bachmann

Martin Rattay

Raphael Himmelsbach

Thomas Rosemeier

Christoph Margraf

Thomas Riedisser

Philipp Rechenbach

Johannes Glückler

Kai Bornträger

Anton Fritzer

Michael Trübenbach

Bernd Unseld

Hans-Peter Freudenreich

Martin Fellmann

Mladjan Radic

Suryanto Hendrawan

Armin Gierling

Eckhardt Lübke

Juergen Wafzig

Ulrich Kehr

Hagen Doepfert

Benedikt Reick

Michael Trubenbach

Thilo Schmidt

Markus Herrmann

Jürgen Wafzig

Tamas Gyarmati

Bernhard Sich

Kim Führer

Stefan Brom

Christian Michel

Ingo Pfannkuchen

Reinhard Vollmar

Karl Grad

Bernd Vahlensieck

Maik Wiesner

Oliver Bayer

Andreas Geiger

Marc Seeberger

Ulrich Doerr

Thomas Kroh

Matthias Hom

Domenico Bartilucci

Fabio Frank

A planetary-type bottom-bracket transmission for a bicycle or a pedelec includes a pedal crank shaft, a transmission output shaft, further shafts, and a first transmission shift group and a second transmission shift group. The first transmission shift group and the second transmission shift group are coupled to each other for implementing a plurality of gear ratios. The first transmission shift group includes a two-step stepped planetary gear set that is assigned a first shifting element, a second shifting element and a fifth shifting element.

Planetary-type bottom-bracket transmission for a bicycle or a pedelec

A hybrid transmission device () includes a first transmission input shaft (), a second transmission input shaft (), a superposition gear unit () arranged axially parallel to the first transmission input shaft () and to the second transmission input shaft () and configured for connecting an electric machine (). The superposition gear unit () includes a first planetary gear set (P) with a sun gear (P), a ring gear (P), and a planet carrier (P) with planet gears (P) rotatably arranged thereon. A gear reduction stage () includes a first spur gear pair (ST) and a second spur gear pair (ST) for connecting the superposition gear unit () to a differential (). At least a first shift element (A), a second shift element (B), and a third shift element (C) are configured for implementing an electrodynamic driving-off process and a purely electric or hybridized drive of the motor vehicle.

Hybrid transmission device and motor vehicle comprising a hybrid transmission device

A bottom bracket gear mechanism for a bicycle or a pedelec includes a gear mechanism shifting group in which a second element of the first gear set is connected to a first shaft, a third element of the first gear set is connected via a fourth shaft to a second element of the second gear set, and a first element of the first gear set is connected to a fifth shaft. A first element of the second gear set is fixable via a third shaft and the second shifting element. The third shaft is connectable to the fifth shaft via the sixth shifting element. The third element of the second gear set is fixable via a second shaft and via the first shifting element. The second shaft is connectable to the first shaft via the fifth shifting element.

Bottom bracket gear mechanism of planetary design for a bicycle or a pedelec

A bottom bracket planetary gear mechanism for a bicycle or a pedelec includes a gear mechanism shifting group having first and second planetary gear sets and first, second, and fifth shifting elements. A second element of the first gear set is connected to a first shaft, a first element of the first gear set is connected via a fourth shaft to a first element of the second gear set, and a third element of the first gear set is fixable via a second shaft and a first shifting element. The third element of the first gear set is connected via the second shaft to a second element of the second gear set. A third element of the second gear set is fixable via a third shaft and a second shifting element. A fifth shifting element blocks the first and second gear sets.

A transmission for a motor vehicle includes a first, a second, and a third planetary gear set, an input shaft, a first and a second output shaft, and a first and a second coupling shaft. Respective elements of the first planetary gear set are rotationally fixed to the input shaft, rotationally fixed to the first coupling shaft, and rotationally fixed to the second coupling shaft. Respective elements of the second planetary gear set are rotationally fixed to the first coupling shaft, rotationally fixed to a stationary component, and rotationally fixed to the second output shaft. Respective elements of the third planetary gear set are rotationally fixed to the second coupling shaft, rotationally fixed to the first output shaft, and rotationally fixed to the second output shaft.

Transmission and drive device for a motor vehicle

The disclosure relates to a hybrid transmission device for an internal combustion engine transmission arrangement of a motor vehicle. The hybrid transmission device comprises at least one transmission input shaft, at least one drive device and at least one connecting clutch for connecting two shafts for conjoint rotation. The hybrid transmission device comprises no more than two gear stages. The disclosure additionally relates to a motor vehicle.

Hybrid transmission device, engine transmission arrangement, hybrid drivetrain and motor vehicle

A transmission may include an input shaft, a first output shaft, a second output shaft, a first planetary gearset, and a second planetary gearset connected to the first planetary gearset, where the planetary gearsets each comprise numerous elements. The input shaft, the two output shafts, the planetary gearsets, and their elements may be arranged and designed such that a torque input via the input shaft is converted and distributed in a defined ratio to the two output shafts, and the formation of a combined torque is prevented. At least a third element of the first planetary gearset may be connected to a first element of the second planetary gearset via a shaft for conjoint rotation.

Transmission, drive train and vehicle comprising transmission

A transmission has an input shaft, first and second output shafts, and first and second planetary gear-set, connected together. The first output shaft is rotationally fixed to a first planetary gear-set second element, the second output shaft is rotationally fixed to a second planetary gear-set third element, a first planetary gear-set third element is rotationally fixed to a second planetary gear-set first element via a shaft, and a second planetary gear-set second element is secured to a rotationally fixed component. A first shift element blocks the third planetary gear-set by connecting third planetary gear-set elements in a rotationally fixed manner, a second shift element secures a third planetary gear-set first element to the rotationally fixed component, a third planetary gear-set second element is rotationally fixed to the first planetary gear-set first element via an intermediate shaft, and a third planetary gear-set third element is rotationally fixed to the input shaft.

Transmission, powertrain, and vehicle

A transmission may include an input shaft, a first output shaft, a second output shaft, a first planetary gearset, and a second planetary gearset connected to the first planetary gearset. Optionally, the input shaft is connected to a first element of the first planetary gearset for conjoint rotation, the first output shaft is connected to a second element of the first planetary gearset for conjoint rotation, and the second output shaft is connected to a third element of the second planetary gearset for conjoint rotation. A third element of the first planetary gearset may be connected to a first element of the second planetary gearset via a shaft for conjoint rotation, and a second element of the second planetary gearset may be fixed in place on a non-rotating component.

Transmission, drive train and vehicle having a transmission

The disclosure relates to a transmission comprising an input shaft, a first output shaft, a second output shaft, a first planetary gear set, and a second planetary gear set which is connected to the first planetary gear set. Each of the planetary gear sets comprises multiple elements. The input shaft, the two output shafts, the planetary gear sets, as well as the elements thereof are arranged and designed such that—a torque introduced via the input shaft is converted and is distributed to the two output shafts in a defined ratio, and the development of a sum torque is prevented. At least one element of the first planetary gear set is rotationally fixed to another element of the second planetary gear set. Another element of the second planetary gear set is secured to a rotationally fixed component.

Transmission and vehicle with transmission

A transmission where a first shaft is rotationally fixable to a third shaft and to a second shaft, the second and third shafts are rotationally connectable to a fourth shaft, the second shaft is rotationally connectable to a fifth shaft, the fourth shaft is rotationally connectable to the fifth shaft, the third shaft is rotationally connectable to the fifth shaft, fixed gears of the fourth and fifth shafts are rotationally connected to a drive output, a first gearwheel of the sixth shaft meshes with a fixed gear of the second shaft, and a second gearwheel of the sixth shaft meshes with a fixed gear of the third shaft. Moreover, a first gearwheel of the sixth shaft is an idler gear and a second gearwheel of the sixth shaft is a fixed gear, or vice versa. Additionally, the idler gear of the sixth shaft is rotationally fixable to the sixth shaft.

Six-speed front-transverse double-clutch transmission with third counter shaft

A transmission may include an input shaft, a first output shaft, a second output shaft, a first planetary gearset, and a second planetary gearset connected to the first planetary gearset. The input shaft, the first and second output shafts, and the planetary gearsets may be arranged such that a torque input via the input shaft is converted and distributed in a defined ratio to the two output shafts, and the formation of a combined torque is prevented. At least one element of the first planetary gearset may be connected to at least one element of the second planetary gearset with a shaft for conjoint rotation, and at least one element of the second planetary gearset may be fixed in place on a non-rotating component. A connector may be arranged and configured to passively, and therefore without a control unit and without an actuator, connect the first output shaft and second output shaft.

A shiftable planetary transmission () includes a planet carrier (), a plurality of planet gears () rotatably arranged at the planet carrier (), a sun gear (), and a ring gear (). The sun gear () and the ring gear () mesh with the planet gears (). The planet carrier () includes at least one connecting element (), which is axially displaceable therein. The at least one connecting element (), on a first side of the planet carrier (), is at least indirectly connected to an actuator () and, on a second side of the planet carrier (), is at least indirectly connected to a first dog element (). The first dog element () is displaceable, by an actuator actuation, between a first shift position and at least a second shift position due to an axial displacement of the at least one connecting element () in the planet carrier ().

Shiftable planetary gear train

A transmission with a differential locking unit which comprises an input shaft (), first and second output shafts (), and first and second planetary gear sets (P, P). Torque introduced, via the input shaft (), is converted and distributed to the two output shafts () in a defined ratio, and development of a sum torque is prevented. The differential locking unit comprises an epicyclic gearing (P) as well as a switching element (B). The epicyclic gearing (P) has at least three connection shafts (), a first connection shaft (WI) is rotationally fixed to a linking shaft (), a second connection shaft (W) is rotationally fixed to the second element (E) of the first planetary gear set (PI), which is rotationally fixed to the first output shaft (). A third connection shaft (W) can be secured to a rotationally fixed component (GG) by the switching element (B).

Transmission with a differential locking unit

A gear unit for a powertrain of a motor vehicle includes a drive shaft, a driven shaft, first and second planetary gearsets and first and second shifting elements. The first shifting element drivingly connects the drive shaft to an input of the first planetary gearset, and the second shifting element drivingly connects the drive shaft to an input of the second planetary gearset. An output element of the second planetary gearset is connected to the input of the first planetary gearset to be fixed with respect to rotation relative to it, and an output of the first planetary gearset is at least indirectly drivingly connected to the driven shaft. A shared element is fixed with respect to relative rotation and, with an inner toothing, forms a ring gear of the first planetary gearset and, with an outer toothing, forms a sun gear of the second planetary gearset.

Gear unit for an electric powertrain

Growing community of inventors

Eriskirch, Germany

Stefan Beck