Zf Friedrichshafen Ag

Sf Friedrichshafen Ag

Zg Friedrichshafen Ag

Stefan Renner

Johannes Kaltenbach

Johannes Glückler

Kai Bornträger

Rayk Gersten

Stefan Spühler

Thomas Martin

Josef Bader

Fabian Kutter

Michael Trübenbach

Christian Mittelberger

David Rittler

Thomas Waim

Paul Lenz

Martin Weiss

Reiner Keller

Karlheinz Mayr

Eckhardt Lübke

Bernard Hunold

Stefan Blattner

Gerhard Buri

Markus Ulbricht

Sören Knopp

Eike Helm

Marco Di Sarno

Michael Preuß

Kai Heinrich

Mladjan Radic

Maximilian Scheufler

Karlheinz Hoher

J&uuml;rgen Rauter

Thomas Bergmann

A gearbox has an input shaft, an output shaft, three shifting elements, and three planetary gearsets each having a sun shaft, ring gear shaft, and web shaft. The first sun shaft, the second sun shaft, and the input shaft are connected rotationally fixed. Rotationally fixed connections are made between the first ring gear shaft and a stationary component, the first web shaft and the second ring gear shaft, the second web shaft and the third sun shaft, and the third web shaft and the output shaft. Closing the first shifting element connects the third ring gear shaft rotationally fixed to a stationary component. Closing the second shifting element connects in a rotationally fixed manner the first web shaft, the second ring gear shaft, the third web shaft, and the output shaft. Closing the third shifting element connects rotationally fixed two of the three shafts of the third planetary gearset.

Gearbox and drive unit with such a gearbox

A motor vehicle transmission () has a first drive input shaft (), a second drive input shaft (), a drive output shaft (), and a first planetary gearset (P), a second planetary gearset (P) and a third planetary gearset (P), where the drive input shafts () are designed in each case for coupling to a respective drive machine. In addition, at least four shifting elements in the form of a first shifting element (B), a second shifting element (C), a third shifting element (E), and a fourth shifting element (F) are provided, at least functionally. The motor vehicle transmission can be part of a drive unit (), a vehicle drive axle, a hybrid or electric vehicle and the subject of a method for operating a motor vehicle transmission.

Motor vehicle transmission for an at least partially electrically driven motor vehicle

A motor vehicle transmission () includes a drive shaft (), an output shaft (), and a first planetary gear set (P), a second planetary gear set (P), and a third planetary gear set (P). The drive shaft () is provided for coupling to at least one drive engine. The first planetary gear set (P) is positioned axially at least overlapping with the second planetary gear set (P) and is arranged radially on the inside of the second planetary gear set (P). Furthermore, a shift element (A) is provided at least functionally. The invention also relates to a drive unit (), an electrically drivable motor vehicle drive axle, a hybrid or electric vehicle and a method for operating a motor vehicle transmission.

A drive unit for a vehicle includes an electric machine and a manual gearbox with at least a first shift element, a second shift element, a third shift element and two planetary gear sets coupled to one another and each having a sun shaft, a hollow gear shaft, and a web shaft. The second hollow gear shaft is connected rotationally fixed to the first web shaft. The first sun shaft is connected to a stationary component. In the respective actuated states, the first shift element locks the first planetary gear set to shift a first gear, the second shift element connects the first hollow gear shaft to the second web shaft to shift a second gear, and the third shift element connects the first hollow gear shaft to the second sun shaft to shift a third gear.

Drive unit for a vehicle

A vehicle drive unit has an electric machine and a manual gearbox with first and second shift elements and two planetary gear sets coupled to one another. Each gear set has a sun shaft, a ring gear shaft, and a web shaft. The second sun shaft is drivable by the electric machine and is configured as an output of the shift gear. The second ring gear shaft is connected rotationally fixed to the first web shaft, and the first sun shaft is connected rotationally fixed to a stationary component. When actuated, the first shift element connects the first ring gear shaft to an element of the first planetary gear set and/or of the second planetary gear set. When actuated, the second shift element connects the first ring gear shaft rotationally fixed to the second sun shaft or the second web shaft in order to shift a second gear.

A planetary gearset () has a planetary carrier () and a plurality of planetary gearwheel axles arranged axially offset relative to one another and on which planetary gearwheels () are mounted to rotate. A first carrier section () is arranged at a first axial end of the planetary gearwheel axles and a second carrier section () is arranged at a second axial end of the planetary gearwheel axles. The first carrier section () is in the form of a casting with the planetary gearwheel axles formed as axially projecting journals () made integrally with the first carrier section (). The second carrier section () is attached as a separate component onto the journals (), and the first carrier section () and the second carrier section () hold the journals () axially at both ends at fixed, unvarying axial distances apart from one another.

Planetary gearset and vehicle driveline

A connection bridge device is suggested for connecting a multipoint link to a vehicle axle, particularly a multipart vehicle axle. The connection bridge device comprises at least one base body for receiving and dissipating forces and/or torques transmitted between the vehicle axle and the multipoint link, at least one axle fastening unit for fastening the base body to the vehicle axle, and at least one link coupling unit for coupling the base body to the multipoint link, which link coupling unit is intersected by a main extension plane of the base body.

Connection bridge device

A stub shaft assembly for an outer planetary axle () of a motor vehicle includes an inner shaft () and an outer shaft () comprising a helically toothed sun gear (). A pair of toothings () with a first helical toothing and a second helical toothing is effective between the inner shaft () and the outer shaft (). Also disclosed is an outer planetary axle () for a motor vehicle comprising at least one such stub shaft assembly.

Plug-in shaft arrangement and hub-reduction axle for a motor vehicle

A motor vehicle transmission () has a drive input shaft (), a drive output shaft () and a first planetary gearset (P), and a second planetary gearset (P), where the drive input shaft () is provided for coupling to a drive machine. In addition, a first shifting element (A) and a second shifting element (B) are provided, at least functionally. Also disclosed are a drive unit (), a motor vehicle drivetrain, a hybrid or electric vehicle, and a method for operating a motor vehicle transmission.

A motor vehicle transmission () has a drive input shaft (), a drive output shaft (), a first planetary gearset (P), and a second planetary gearset (P). The drive input shaft () is provided for coupling to a drive machine. In addition, a first shifting element (A) and a second shifting element (B) are provided, at least functionally. Also disclosed is a drive unit (), a motor vehicle drivetrain, a hybrid or electric vehicle, and a method for operating a motor vehicle transmission.

Claw-type shifting mechanism () with a first sliding sleeve () and a fixed coupling element (). In order to produce a passage, the first sliding sleeve () and the coupling element () each respectively have at least one recess () and at least one web section (), in which the first sliding sleeve () and the coupling element () can be arranged together radially on the outside on a first shaft. The first sliding sleeve () can be displaced along the first shaft and the coupling element () can be connected firmly to the first shaft. The drive arrangement () comprises at least one drive machine, a transmission with a first shaft, a second shaft and a third shaft, a housing, and a claw-type shifting mechanism () of this type.

Dog clutch and drive arrangement

A drive axle of an electric vehicle has first and a second drive wheels (R, R) with wheel axles (a, a), a first electric machine (EM) and a second electric machine (EM) with a common rotation axis (m), a transmission (G) with a transmission input shaft (EW) and a transmission output shaft (AW), and an axle differential (DI) with a differential input (DIK) and two differential output shafts (). The first electric machine (EM) is connected to the transmission input shaft (EW) and the transmission output shaft (AW) is connected to the differential input (DIK). The second electric machine (EM) can be connected as an additional drive when necessary.

Drive axle of an electric vehicle and powershifting method

The invention relates to a motor vehicle transmission () comprising a drive input shaft (), a drive output shaft (), a first planetary gearset (P), a second planetary gearset (P), and a third planetary gearset (P), where the drive input shaft () is provided for coupling to an electric machine (). Furthermore, at least functionally a first shifting element (A), a second shifting element (B), and a third shifting element (C) are provided. In addition, the invention relates to a drive unit (), a drive axle (), and an electric vehicle.

Motor vehicle transmissions, in particular electric vehicle transmissions

The invention relates to a motor vehicle transmission () having a drive input shaft (), a drive output shaft (), a first planetary gearset (P), a second planetary gearset (P), and a third planetary gearset (P), where the drive input shaft () is provided for coupling to an electric machine (). Furthermore, at least functionally a first shifting element (A), a second shifting element (B), and a third shifting element (C) are provided. In addition, the invention relates to a drive unit (), a drive axle () and an electric vehicle.

A drive axle for an electric vehicle which comprises first and second electric machines (EM, EM), first and second drive wheels (R, R) and first and second two-speed transmissions (G, G) each having the same gear ratios. The first electric machine (EM) drives the first drive wheel (R) by way of the first two-speed transmission (G) and the second electric machine (EM) drives the second drive wheel (R) by way of the second two-speed transmission (G). The first and the second two-speed transmissions (G, G) each comprise a first planetary gearset (PS) and a second planetary gearset (PS) coupled to one another. The first planetary gearset (PS) and the second planetary gearset (PS) each comprise a web shaft (ST, ST), a ring-gear shaft (HR, HR) and a sun-gear shaft (SO, SO).

Growing community of inventors

Bodman-Ludwigshafen, Germany

Stefan Renner