Zf Friedrichshafen Ag

Max Bachmann

Stefan Beck

Johannes Kaltenbach

Michael Wechs

Peter Ziemer

Martin Brehmer

Michael Roske

Juri Pawlakowitsch

Matthias Reisch

Matthias Horn

Thomas Rosemeier

Fabian Kutter

Martin Rattay

Wolfgang Rieger

Kai Bornträger

Harald Wendl

Jens Moraw

Raffael Kuberczyk

Gerhard Niederbrucker

Viktor Warth

Thomas Martin

Anton Fritzer

Bernd Unseld

Suryanto Hendrawan

Bernard Hunold

Kai Borntraeger

Lara Ruth Turner

Christian Michel

Reinhard Vollmar

Ingo Pfannkuchen

Oliver Bayer

Mladjan Radic

Rene Budach

Stefan Häuβler

Thomas Kroh

Matthias Hom

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

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

An electric transmission () for a motor vehicle drive train () with a first electric prime mover () and a second electric prime mover (), includes a first transmission input shaft () having a first transmission connection for drivingly connecting the electric transmission to the first electric prime mover, a second transmission input shaft () having a second transmission connection for drivingly connecting the electric transmission to the second electric prime mover, a countershaft (), gearwheel pairs of idler gears () and fixed gears () for forming gear steps and arranged in multiple gear set planes, a plurality of shift elements () for engaging the gear steps, a planetary gear set () with a sun gear (), a planet gear carrier, and a ring gear (), and a third transmission input shaft () drivingly connected to the planet gear carrier of the planetary gear set. The first electric prime mover is drivingly connected to the ring gear of the planetary gear set, and the second electric prime mover is drivingly connected to the sun gear of the planetary gear set.

Electric transmission for two electric prime movers

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 for a motor vehicle wherein the drive shaft (An) is rotationally fixedly connectable by the first shift element (K) to the first shaft () and by the second shift element (K) to the second shaft (). The second shaft () is rotationally fixedly connectable by the fifth shift element (B) to the housing (). The third shaft () is rotationally fixedly connected to the third gear set element of the second planetary gear set (RS) and to the first gear set element of the third planetary gear set and is rotationally fixedly connectable by the sixth shift element (B) to the housing (). The second gear set element of the third planetary gear set (RS) is rotationally fixedly connected to the output shaft (Ab), and the third gear set element of the third planetary gear set (RS) is rotationally fixedly connected to the second shaft ().

Vehicle transmission

A transmission for a motor vehicle wherein the drive shaft (An) is rotationally fixedly connectable by the first shift element (K) to the first shaft () and the first shaft is rotationally fixedly connectable by the second shift element (B) to the housing (). A sun gear of the first planetary gear set (RS) is rotationally fixedly connectable by the third shift element (K) to the drive shaft (An). A carrier of the first planetary gear set (RS) is rotationally fixedly connected to the output shaft (Ab) and to a ring gear of the second planetary gear set (RS). A ring gear of the first planetary gear set (RS) is rotationally fixedly connected to the second shaft (), wherein the second shaft () is rotationally fixedly connectable by the fourth shift element (B) to the housing ().

A hybrid drive train for a motor vehicle comprises an internal combustion engine, and electric machine, with a stator and rotor, and a transmission. A disk clutch is located in the force flow, between the combustion engine and the transmission input shaft, and an outer disk carrier of the disk clutch is fixed to a transmission input stage and an inner disk carrier of the disk clutch is connected to the combustion engine. The rotor of the electric machine drives another element of the transmission input stage, and the disk carriers of the clutch are mounted and centered by two roller bearings which center the inner and outer disk carriers relative to one another and bring them into axial alignment, and axial tolerances within the unit which comprises the electric machine, the separator clutch and the transmission input stage are compensated by displacing and aligning the disk packet of the clutch in the drive gearing of the inner disk carrier.

Hybrid drive train for a motor vehicle

A hybrid gear train of a motor vehicle that has an internal combustion engine with a drive shaft, an electric motor with a rotor that operate as a motor and a generator, a transmission with two input shafts and an output shaft, as well as a differential transmission. At least one of the input shafts can be connected, via an assigned de-coupler, to the drive shaft, both of the input shafts can be connected by alternately assigned gearwheel sets of different ratios and in each case one assigned gear clutch to the output shaft. The differential transmission is designed as a simple planetary gearset that is coaxial with the first input shaft. The ring gear of this transmission is rotationally fixed to the one input shaft. The planet carrier is rotationally fixed to the second input shaft, and the sun gear is connected to and drives the rotor.

Hybrid drive train of a motor vehicle

A drive system for individually driving two wheels of a drive wheel pair of a vehicle. The drive system has two infinitely variable transmission drives which are drivingly connected, via a transmission arrangement, to an associated drive wheel. Each transmission arrangement includes two transmission units arranged one behind the other, with one of the transmission units preferably being a two-stage shiftable transmission and the other transmission unit being a bevel gear transmission. The shiftable transmission makes it possible to vary the drive transmission ratio. The bevel gear transmission makes it possible to arrange the transmission drives so that their drive shafts are at right angles to the rotational axis of the drive wheel pairs.

Drive system for individually driving two drive wheels of a drive wheel pair

This invention relates to individual wheel drives for individually suspended, spring-mounted wheels of a vehicle comprising one universal joint shaft () connecting the output shaft socket () of a drive device with the input shaft socket of a wheel, having one main section () and at least one end section () situated on one end thereof, via a universal joint (), rotatingly coupled with the associated shaft socket (), the universal joint shaft () having a permanent inclination which compensates an offset between drive device and wheel, and means being provided for reducing a permanent deviation defined by the inclination. The end section () associated with the universal joint () and the shaft socket () coupled therewith are coupled with each other via a bevel wheel pair (), the deflection angle &#x3b1; of which corresponding at least partly with the corresponding permanent deflection angle between universal joint shaft () and shaft socket ().

Individual wheel drive for individually suspended wheels of a motor vehicle

An axle with wheel hub drive including an electric motor () cooled with cooling fluid is proposed in which an external cooling is incorporated in the wheel heads () of the axle ().

Electrically-powered axle with wheel hub drive

A brake ( ) is arranged between a drive motor ( ) and reduction steps ( ). By arranging the reduction steps ( ) directly adjacent one another, adequate cooling of one of the reduction steps is achieved. The wheel bearing ( ) is located radially outside but axially in the area of the first reduction step ( ). By this arrangement, a very compact final drive, is thereby created, in the axial direction, characterized by a favorable efficiency and ease of service.

Final drive for driving a vehicle wheel

An axle, preferably for driving a low-platform omnibus, has a bridge ( ) arranged at a distance from the wheel axle. The housing ( ) of a driving engine ( ) is connected with the bridge ( ) and with suspension elements ( ), on one side of the axle, to secure the axle to the vehicle and, on the other side, with a hub carrier ( ) to receive forces of the wheel. The driving engine ( ) has a sufficient axial distance from the wheel axle so as to create a space, in a direction opposite to the axial distance, so that a disk brake ( ) and portion of the actuation device ( ) of the disk brake ( ) can be located within the wheel rim.

Axle having a bridge arranged underneath the wheel axle

A wheel drive preferably used in a low-platform bus for driving the wheels is driven by a drive motor ( ) eccentrically arranged relative to the wheel axle ( ) and a gearwheel ( ). The driven gearwheel ( ) of a reduction gear ( ) is in intermeshing connection with two additional gearwheels ( ) and one outer central wheel ( ) in a manner such that the drive torque is distributed onto the gearwheels ( ) and the outer central wheel ( ) and the driven gearwheel ( ) can be floatingly supported so that a uniform load distribution results.

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Bad Waldsee, Germany

Max Bachmann