Zf Friedrichshafen Ag

Zf Friedrichshafen

Wolfgang Rieger

Stefan Beck

Christian Sibla

Matthias Reisch

Gerhard Gumpoltsberger

Juergen Wafzig

Ralf Dreibholz

Michael Roske

Johannes Kaltenbach

Peter Ziemer

Martin Brehmer

Michael Wechs

Matthias Horn

Jens Moraw

Thomas Rosemeier

Raffael Kuberczyk

Gerhard Niederbrucker

Viktor Warth

Anton Fritzer

Bernd Unseld

Lara Ruth Turner

Martin Rattay

Philip Recker

Suryanto Hendrawan

Juri Pawlakowitsch

Timo Wehlen

Eckhardt Lübke

Ulrich Kehr

Max Bachmann

Sabine Sielemann

Josef Haupt

Stephan Scharr

Michael Ebenhoch

Hans-Joachim Martin

Michael Drabek

Martin Jelinewski

Stefan Csajagi

Oliver Bayer

Andreas Hölscher

Rudolf Kauffeldt

Markus Maier

Gerhard Gumpoltsbeger

Danny Grusser

Florian Dichtl

Marc Schiess

Pavel Janiga

Marc Abele

A drive device () for an at least partially electrically driven vehicle () includes an electric machine () having a rotor shaft () extending longitudinally along an input axis (). The drive device further includes a first output shaft () extending longitudinally along an output axis () and parallel to the rotor shaft (). Moreover, the drive device includes a gear stage () having a first gearwheel () rotationally fixed to the rotor shaft (), and a second gearwheel () meshed with the first gearwheel () and drivingly connected to the first output shaft (). Additionally, the drive device includes a housing () having a shared housing cavity (), wherein the first output shaft () and the electric machine () are parallel to one another in the housing cavity (), and wherein an air gap () extends radially between the electric machine () and the first output shaft ().

Drive device for an electrically driven vehicle

A device () for cooling and lubricating components of a vehicle () may include a housing (), a coolant sump (), a coolant pump () for pumping coolant () from the coolant sump (), a heat exchanger () for cooling coolant () from the coolant pump (), and a coolant line system () including a coolant reservoir () having a single coolant inlet () and multiple coolant outlets (). The coolant line system () fluidically connects the coolant pump () to the heat exchanger (), and the heat exchanger () to the single coolant inlet () of the coolant reservoir (). The coolant reservoir () receives coolant () from the heat exchanger () via the single coolant inlet () and directs coolant () via the multiple coolant outlets () onto components in the housing () requiring cooling and lubrication.

Device for cooling and lubricating components of a vehicle and drive device having a device of this type

A transmission (G) includes an input shaft (GW), an output shaft (GW), an electric machine (EM), a plurality of planetary gear sets (P-PP-P), and gear-implementing shift elements (S-SS-S). Via engagement of a first of the gear-implementing shift elements (SS), which is a force-locking shift element having a variable torque transmission capacity, the input shaft (GW) and an element (EE) of one of the planetary gear sets (PP) can be brought into a fixed rotational speed relationship with respect to each other. Another element (EEE) of one of the planetary gear sets (PPP) is permanently connected to a rotor (R) of the electric machine (EM). By engaging an auxiliary shift element (ZS,ZSa,ZSb), which is a form-locking shift element, the rotor (R) and the input shaft (GW) can be brought into a fixed rotational speed relationship with respect to each other.

Transmission for a motor vehicle, drive train and method for operating a transmission

A connecting arrangement includes first and second idler gears () arranged coaxially and connectable via an engagement unit. The engagement unit includes a coupling element coupled to the first idler gear () in a direction of rotation and axially movable between a home position and a coupling position. In the coupling position, the coupling element is coupled to the second idler gear () in addition to being coupled to the first idler gear () in the direction of rotation. In the home position, the coupling element and the second idler gear () are freely turnable with respect to each other. The first and second idler gears () are helical-cut spur gears. The coupling element is guided in a helically extending guide () on the first idler gear () and, in the coupling position, engages into a helically extending engagement geometry () on the second idler gear ().

Switching arrangement and 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 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 multi speed transmission in planetary design for a vehicle, the transmission having a housing, a first shaft () as a drive (AN), a second shaft () as an output (Ab) axially parallel to the drive, three planetary gear sets (RS, RS, RS), additional shafts (-), and six shifting elements (K, K, K, K, K, B) actuatable to realize several gear ratios. The transmission further includes machine elements (ST, ST) that transfer torque between the drive (AN) and the output (Ab). The first shaft () is connected to the planetary gear carrier (PT) of the first planetary gear set (RS) and is connectable at least to the sun gear (SR) of the second planetary gear set (RS) and to the ring gear (HR) of the third planetary gear set (RS). Additionally, the second shaft () is connected to the first machine element (ST) and to the second machine element (ST).

Multi-stage planetary transmission

A multi-speed transmission in planetary design for a vehicle having a transmission housing (); a first shaft (), the first shaft () being a drive (An); a second shaft (), the second shaft () being an output (Ab); at least five planetary gear sets (RS, RS, RS, RS, RS); at least seven additional shafts (); and five shift elements (SE, SE, SE, SE, SE). Through actuation of the shift elements, at least nine forward gears (G, G, G, G, G, G, G, G, G) and at least one reverse gear (R) are realized. For the realization of each gear, two of the shift elements are open and at least three of the shift elements (SE, SE, SE, SE, SE) are closed.

Multi-speed transmission in planetary design for a vehicle

A planetary multi-speed transmission for a vehicle with a housing is proposed. A first shaft is provided as a drive (An) and a second shaft is provided as an output (Ab) and is arranged axially parallel to the drive. Three planetary gear sets and additional shafts, along with six shifting elements are provided, through which the actuation of several gears are realized. Machine elements are provided for transfer of torque between the drive (An) and the output (Ab). The first shaft is connectable, as drive (An) to the planetary gear carrier of the first planetary gear set, to the sun gear of the second planetary gear set, to the ring gear of the first planetary gear set, to the planetary gear carrier of the second planetary gear set and to the first spur gear stage. The second shaft is connected or connectable, as a drive (Ab), to the first machine element and to the second machine element.

Multi-speed transmission in planetary design

A transmission includes a drive shaft, an output shaft, a housing, and a first through third planetary gear sets. Six shift elements include a first brake, a second brake, and first through fourth clutches. The shift elements are selectively actuated, by which ten forward gears and one reverse gear can be. Each planetary gear set features at least one sun gear, one planetary gear, one planetary carrier and one ring gear. The drive shaft and the output shaft are arranged in a manner axially offset to each other. The drive shaft is connectable to the sun gear of the third planetary gear set and the second brake through the first clutch, and is connectable to the planetary carrier of the third planetary gear set through the second clutch. The planetary carrier of the third planetary gear set is connected to the first brake.

Transmission for use in a motor vehicle

A multi-speed transmission for a motor vehicle includes a housing, a drive shaft, an output shaft, at least four planetary gear sets, whereas each of the planetary gear sets comprises one sun gear, at least one planet, one planetary carrier and one ring gear. The transmission includes several shift elements in the form of at least three clutches and at least three brakes. The drive shaft is connectable through the second clutch to the planetary carrier of the first planetary gear set. The planetary carrier of the first planetary gear set is connected to the second brake. The ring gear of the first planetary gear set is connected to the planetary carrier of the fourth planetary gear set. The planetary carrier of the fourth planetary gear set is connected to the sun gear of the third planetary gear set. The sun gear of the fourth planetary gear set is connected to the third brake. The planetary carrier of the third planetary gear set is connected to the output shaft. The ring gear of the third planetary gear set is connected to the ring gear of the fourth planetary gear set. The third clutch is connected to the first brake. The third clutch is connected to the sun gear of the first planetary gear set.

Transmission for a motor vehicle

A multi-speed transmission in planetary design for a vehicle includes a first shaft () provided as a drive (An) and a second shaft () provided as an output (Ab) that is arranged axially parallel to the drive. Three planetary gear sets (RS, RS, RS) and additional shafts (), along with six shifting elements (K, K, K, K, B, B) are provided, through which actuation of several gears is realized. Machine elements (ST, ST) are provided for the transfer of torque between the drive (An) and the output (Ab), whereas the first shaft (), as a drive, is connectable to the sun gear (SR) of the third planetary gear set (RS), to the sun gear (SR) of the second planetary gear set (RS), to the planetary gear carrier (PT) of the third planetary gear set (RS), and is connectable or connected to the sun gear (SR) of the first planetary gear set (RS). The second shaft () is connected or connectable, as a drive (Ab), to the first machine element (ST) and to the second machine element (ST).

A multi-speed planetary transmission includes a housing, a drive shaft connectable to a drive train for transferring a drive torque from the drive train to the multi-speed planetary transmission, and four single planetary transmissions arranged along a housing longitudinal axis. The planetary gears feature a sun gear, ring gear, and planetary carrier. Six shift elements are arranged within the housing and are designed as four clutch elements and two brakes. Connecting shafts form connections between the single planetary transmissions, the drive shaft, the output shaft, the clutch elements and/or the brakes. The single planetary transmissions are shiftable such that nine forward gears and one reverse gear are provided, and the shift elements are arranged in a manner easily accessible from outside the housing.

Multi-speed planetary transmission

A multi-speed transmission for a motor vehicle includes a housing, a drive shaft, an output shaft, and at least four planetary gear sets, whereas each of the planetary gear sets comprises one sun gear, at least one planet, one planetary carrier and one ring gear. Several shift elements are provided in the form of at least four clutches and at least two brakes. The drive shaft is connectable through the third clutch to the first brake and to the sun gear of the first planetary gear set and to the sun gear of the second planetary gear set. The ring gear of the first planetary gear set is connected to the planetary carrier of the fourth planetary gear set. The planetary carrier of the fourth planetary gear set is connectable through the fourth clutch to the drive shaft. The sun gear of the fourth planetary gear set is connected to the housing. The second brake is connected to the planetary carrier of the first planetary gear set.

A multi-speed transmission in planetary design for a vehicle includes a housing, a first shaft () as a drive (An), and a second shaft () provided as an output (Ab) that is arranged in a manner axially parallel to the drive. Three planetary gear sets, additional shafts, along with six shifting elements are also provided, through which the actuation of several gears are realized. Machine elements are provided for the transfer of torque between the drive and the output. The first shaft is connectable to the planetary gear carrier of the second planetary gear set, to the sun gear of the first planetary gear set, to the ring gear of the second planetary gear set, to the planetary gear carrier of the first planetary gear set, and to the first spur gear stage. The second shaft is connected or connectable to the first machine element and to the second machine element.

Growing community of inventors

Friedrichshafen, Germany

Wolfgang Rieger