DE102022133315A1 - Integrally designed electric axle drive device - Google Patents

Abstract

The invention relates to an integrally formed electric axle drive device (1) for driving one or more vehicle wheels of an electric or hybrid vehicle, comprising: - an electric machine (2) with a stator (2A), a rotor (2B) and a shaft (2C), which is rotatably connected to the rotor (2B), - a transmission device (3) with an input (4) and an output (5), - the input (4) with the shaft (2C) and / or with the rotor (2B) can be connected,- the outlet (5) being connectable to one or more vehicle wheels, and- a housing (6) for enclosing and delimiting the axle drive device (1),- the axle drive device (1) having a distribution device (7 ) for dividing, further dividing and/or interrupting at least one output variable of the transmission device (3) and/or the electric machine (2), such as speed and/or torque, to one or more vehicle wheels, - the axle drive device (1) having a braking device (17) for completely or partially braking or slowing down one or more vehicle wheels, - the distribution device (7) or at least one distribution unit (8, 9, 10) of the distribution device (7) and/or the braking device (17) or at least one Brake unit (18, 19) of the braking device (17) inside or inside the rotor (2B) of the electrical machine (2) is arranged.

Description

The invention relates to an integrally formed electric axle drive device for driving one or more vehicle wheels of an electric or hybrid vehicle.

From the DE 10 2019 201 989 an integral electric axle drive device is known which, in addition to a gearbox for converting the torque of an electric machine, has two brake units (cf. 3 the DE 10 2019 201 989 ).

The transmission includes an intermediate transmission and a differential, which distributes the speed of the electric machine to two axle drives after transmission by the intermediate transmission.

A brake unit is connected downstream of the intermediate gear for each axle drive, so that the speed of each axle drive can be reduced separately by the brake unit. The speed reduced on one side is transferred to the other side by the differential. This structure appears complex, detailed and requires a large amount of space within a vehicle.

Therefore, it is the object of the present invention to specify an integrally designed electric axle drive device for driving one or more vehicle wheels of an electric or hybrid vehicle, which has a simple structure, requires little installation space, can be produced easily and/or with known means and inexpensively and also can be reliable in operation.

This object is solved by the features of the independent patent claim. Further advantageous developments are the subject matter of the dependent claims.

In the present invention, an integrally formed electric axle drive assembly for driving one or more vehicle wheels of an electric or hybrid vehicle includes an electric machine having a stator, a rotor, and a shaft non-rotatably connected to the rotor. The electrical machine can be a radial flux machine or an axial flux machine.

Furthermore, the axle drive device comprises a transmission device with an input and with an output, the input being able to be connected to the shaft and/or to the rotor. The output can be connected to one or more vehicle wheels.

In addition, the final drive device has a housing for enclosing and defining the final drive device.

Furthermore, the axle drive device includes a distribution device for dividing, further dividing and/or interrupting at least one output variable of the transmission device and/or the electric machine, such as speed and/or torque, to one or more vehicle wheels. The at least one output variable can be a speed and/or a torque of the transmission device and/or the electric machine.

Alternatively or additionally, the axle drive device includes a braking device for completely or partially braking or slowing down one or more vehicle wheels.

The braking device and/or the distribution device can be integrated with the electrical machine and the transmission device to form a modular unit. In addition, power electronics for the electrical machine can be integrated. By arranging the electric machine, the transmission device, the distribution device and the braking device in a common housing, in order to form a module, for example, an integrally designed electric axle drive device for driving one or more vehicle wheels of an electric or hybrid vehicle can be used as a separate component or as a separate assembly for an electric drive of an electric or hybrid vehicle.

The distribution device or at least one distribution unit of the distribution device and/or the braking device or at least one braking unit of the braking device is arranged inside or inside the rotor of the electrical machine. In this way, the installation space within a vehicle can be saved in the axial and radial directions.

The outer dimensions of the rotor of the electrical machine can exceed the outer dimensions of the distribution device or the at least one distribution unit of the distribution device and/or the braking device or the at least one braking unit of the braking device, so that the rotor overhangs the distribution device or the at least one distribution unit in the axial and radial direction and/or the braking device or the at least one braking unit protrudes beyond the braking device. As a result, installation space or space can be saved in the axial and radial direction, by which the axle drive device can be made shorter in comparison to solutions from the prior art.

Also, the outer dimensions or outer dimensions or outer dimensions or outer dimensions of the rotor of the electrical machine, such as length, width and height, the outer dimensions or outer dimensions or outer dimensions or outer dimensions of the distribution device or the at least exceed a distribution unit of the distribution device and/or the braking device or the at least one braking unit of the braking device, such as length, width and height, or even be the same. Thus, installation space in an axle drive device can be saved.

The distribution device can have at least one distribution unit or a first, a second and/or a third distribution unit, e.g. B. dividing, interrupting and/or forwarding at least one output variable of the transmission device and/or the electric machine to one or more vehicle wheels. The distribution device can also exclusively have a first or second or third distribution unit. Several distribution units can be nested or arranged one behind the other radially or in the radial direction and also axially or in the axial direction.

Furthermore, the first, second and/or third distribution unit can connect the input or the output of the transmission device to one or more vehicle wheels in order to forward, split and/or interrupt at least one output variable of the transmission device and/or the electric machine to one or more vehicle wheels to realize.

The first and/or third distribution unit can be designed similarly to a clutch device, so that the transmission device and/or the electric machine can be detachably connected to one or more vehicle wheels. It is thus possible to regulate and/or control at least one output variable of the transmission device and/or the electric machine to one or more vehicle wheels or output drives of the axle drive device. The design of the torque distribution device or distribution device similar to a clutch device can be implemented as a torque vectoring clutch, which can be constructed or implemented similar to a multi-plate clutch or in a multi-plate design or in a disk design, for example as a multi-disc clutch. For example, a lamellar design can be selected as the design for the clutch device or distributor device or for its at least one distributor unit, since multiple lamellae or lamellar elements (dry or wet) can be used to achieve high torques with little installation space and this design is particularly flexible with regard to the Design options are possible (integration into a wide variety of installation spaces possible, adaptable with regard to cooling capacity and thermal mass, e.g. via different lamella thicknesses and number of lamella elements as well as groove patterns). Due to the lamellar design or lamellar construction, a distribution device can be easily scaled over the number of lamellar elements; the design is technically mature and well suited for hydraulic or electromechanical control.

With the help of such a distribution device, not only can a torque and/or a speed be distributed and/or forwarded in a targeted manner, a decoupling function can also be implemented in which no torque at all reaches a vehicle wheel from the electric machine or the transmission device.

Furthermore, the first and/or third distribution unit can comprise a disk pack with first disk elements and second disk elements and an actuating actuator which moves the disk elements together in order to transmit torque. The actuating actuator can be arranged inside the rotor of the electrical machine. This again saves installation space in the axial and/or radial direction. The actuating actuator can, for. B. via a stationary or fixed slave cylinder with release bearing or a rotary union or electromechanically such. B. by means of a ball ramp and a spindle assembly.

The first and/or third distribution unit can be a spring device, e.g. B. a plate spring, having the spring force applied to the first and second lamellar elements and which acts against the force of the actuating actuator. Thus, the actuating actuator can be returned to its initial position and/or the first and second lamellar elements can be released from mutual engagement.

The first, second and/or third distribution unit can e.g. B. each have at least one input part. The at least one input part can be non-rotatably connected to the output of the transmission device in order to introduce at least one output variable of the transmission device from the output of the transmission device into the distribution unit via the input part.

The input parts of the second and third distribution unit can be rotatably connected to each other and z. B. together form an output part of the first distribution unit.

The at least one input part can be designed similar to a hollow shaft or as a spur gear.

Furthermore, the first, second and/or third distribution unit can have at least one output part. The at least one output part of the first, second and/or third distribution unit can be connected in a torque-proof manner to at least one shaft of a first and/or second output of the axle drive device.

In addition, the at least one output part of the second distribution unit can include sun gear elements.

In addition, the first and/or third distribution unit can include at least one input part, which is formed by the rotor of the electric machine in order to introduce a torque and/or a speed into the distribution unit.

The first and/or third distribution unit can also include at least one output part, which forwards at least one output variable of the electrical machine to the input of the transmission device.

The at least one output part can be similar to a hollow shaft or as a spur gear or as at least one sun gear element of a spur gear, e.g. B. a spur gear, be formed.

First disk elements of a disk pack of the first and/or third distribution unit can be arranged on the inside or outside in a rotationally fixed manner on the at least one input part of the first and/or third distribution unit.

On the at least one output part of the first and/or third distribution unit, second disk elements of a disk pack of the first and/or third distribution unit can be arranged in a rotationally fixed manner on the outside or inside.

Furthermore, the output part of the first and/or third distribution unit can be non-rotatably connected to the input of the transmission device.

The rotor or the shaft of the electrical machine can also be connected to the input of the transmission device via the output part of the first and/or third distribution unit.

It is also possible that the output part of the second distribution unit can be connected to the output part of the first and/or third distribution unit, e.g. B. is rotatably connected via a shaft of a second output of the axle drive device.

Furthermore, the braking device can have at least one braking unit or a first and/or second braking unit. The braking device can also exclusively have a first or second braking unit. A brake unit is used to brake or slow down one or more vehicle wheels to z. B. to bring a vehicle to a standstill.

The braking device or the at least one braking unit, e.g. B. designed as a clutch device similar to a multi-plate clutch, offers various advantages. Because the at least one brake unit or the braking device can use the same actuation system such. B. a clutch or distribution device for producing and interrupting a torque flow can be actuated and z. B. be operated with the same oil additives (for example in the case of wet-running friction linings on a trained with lamellar elements clutch or distribution device and / or brake device). However, it is also conceivable for the braking device to be designed as a dry friction clutch or brake (for example as a dry multi-plate clutch/brake or single-disc clutch/shoe brake, etc.).

In this context, it seems possible that the first and / or the second brake unit of the braking device with an appropriate design with z. B. an additional mechanical (eg. This is possible, for example, if a brake unit is arranged, for example directly, on an output of an output device of the axle drive device. In this case it would be sufficient to fix a brake unit on a first or second output side of the axle drive device so that a vehicle does not roll away.

The braking device and/or the first and/or second braking unit can be designed similarly to a clutch device, so that one or more vehicle wheels or output drives of the axle drive device can be slowed down in a controlled manner by means of a braking torque generated by the clutch device. Such an embodiment creates a braking device that is independent of external environmental influences, such as wetness or rust on a brake disk. In this case, the brake device can be configured as a multi-plate design or as a multi-plate brake or as a disk design, similar to a disk brake, or as a multi-disc clutch.

The design, similar to a clutch device, allows improved controllability (no film of water, dirt, rust) through encapsulation in a housing and is suitable, for example, for hill hold or brake-based torque vectoring. In addition, the design, similar to a clutch device, does not cause any particle emissions and allows a reduction in complexity through a smaller number of different systems in a vehicle. Furthermore, the mass can be reduced and shifted towards the center of the vehicle (mass moment of inertia around the vertical axis). Furthermore, unsprung masses are reduced.

Furthermore, a multi-disc brake or multi-disc design can be selected as the design for the braking device or for its at least one brake unit, since high torques can be achieved with little installation space thanks to several disks or disk elements (dry or wet) and this design is particularly flexible with regard to of the design options (integration possible in a wide variety of installation spaces, adaptable with regard to cooling capacity and thermal mass via different lamella thicknesses and number of lamella elements as well as groove patterns). Due to the lamellar design, a braking device can be easily scaled via the number of lamellar elements; the design is technically mature and is very well suited for hydraulic or electromechanical control (e.g. brake by wire). In addition, all the functions of a conventional braking system can be taken over by means of the braking device (e.g. dry disc brakes with brake booster, braking force distribution ABS/ESP).

The first and/or second brake unit can each comprise a fixed brake part or a common, fixed brake part. In addition, the first and/or second braking unit can comprise a rotating braking part.

The fixed and/or rotating brake part can be designed similarly to a hollow shaft or similar to a disk carrier.

The stationary brake part can be connected in a rotationally fixed manner to the housing of the axle drive device.

The rotating brake part of the first brake unit can also be non-rotatably connected to a shaft of a first and/or second output of the axle drive device. The corresponding drives or shafts can thus be slowed down.

Furthermore, the rotating brake part can be connected to the shaft and/or the rotor of the electrical machine in a torque-proof manner. It is even possible that the rotating braking part is formed as one part with the shaft and/or the rotor of the electrical machine.

The rotating braking part of the second braking unit can be non-rotatably connected to an input or output part of a first, second and/or third distribution unit of the distribution device.

The rotating brake part of the second brake unit can be non-rotatably connected to a disk carrier of the second distribution unit or to a second sun wheel element of the second distribution device.

The first and/or second brake unit can comprise a disk pack with first disk elements and second disk elements and an actuation actuator which moves the disk elements together in order to convert rotational energy into thermal energy. The actuating actuator can be arranged inside the rotor of the electrical machine. This again saves installation space in the axial and/or radial direction. The actuating actuator can, for. B. via a stationary or fixed slave cylinder with release bearing or a rotary union or electromechanically such. B. by means of a ball ramp and a spindle assembly.

The first and / or second brake unit can be a spring device, such as. B. a plate spring, having the spring force applied to the first and second lamellar elements and which acts against the force of the actuating actuator to return the actuating actuator to its initial position and / or to release the first and second lamellar elements from mutual engagement.

The first lamellar elements can be arranged in a rotationally fixed manner on the inside or outside of the stationary brake part.

The second lamellar elements can be arranged in a rotationally fixed manner on the inside or outside of the rotating brake part or on the rotor.

Furthermore, the transmission device can have at least one planetary gear. The at least one planetary gear can have a sun gear element and at least one planetary element and a ring gear. The ring gear can be fixed to the housing of the axle drive device. The sun wheel element can form the input of the transmission device. The at least one planetary gear can also be multi-geared (e.g. two or more shiftable gears).

Also, the transmission device z. B. have spur gears or a spur gear instead of planetary stages or instead of a planetary gear. The transmission device can also have several planetary stages and/or spur gear stages.

A planetary carrier, which can connect planetary elements of at least one planetary gear of the transmission device to one another, can form the output of the transmission device.

The sun wheel element or the input of the transmission device can be connected to the shaft and/or the rotor of the electric machine in a torque-proof manner.

Provision can also be made for the sun wheel element or the input of the transmission device to be connected in a torque-proof manner to an output part of a first and/or third distribution unit of the distribution device.

In addition, the axle drive device can have a second distribution unit of the distribution device for compensating for at least one output variable of the transmission device, such as speed and/or torque. The second distribution unit can be arranged outside the rotor of the electrical machine.

The second distribution unit can be designed as a spur gear or as a spur gear differential.

Furthermore, the second distribution unit can have a disk carrier as the input part, which z. B. rotatably connected to the output of the transmission device, for example with the planet carrier of the transmission device.

The input part of the second distribution unit can be designed as a differential carrier. The input part can have side walls that delimit the second distribution unit.

The second distribution unit can also have a first and a second sun wheel element, e.g. B. as an output part, each connectable to a vehicle wheel.

The second distribution unit may also include multiple pairs of first and second planetary elements, the first planetary elements meshing with the first sun gear element and the second planetary elements, and the second planetary elements meshing with the second sun gear element and the first planetary elements. The first and second planetary elements can be rotatably arranged on side walls of the distribution unit. Thus, torque can be transmitted from the sidewalls to the planetary elements, which in turn can transmit torque to the sun gear elements.

The first sun gear element can be connected to a first and/or second output of the final drive device, e.g. B. with its shafts, be rotatably connected.

The second sun wheel element can be non-rotatably connected to a second output of the final drive device, for example to its shaft.

In addition, as an alternative or in addition, it can be provided that the second sun gear element is non-rotatably connected to a rotating brake part of a first or second brake unit of the brake device.

Furthermore, the axle drive device can have a first output side for connection to a first vehicle wheel of a vehicle and a second output side for connection to a second vehicle wheel of a vehicle.

The first and second output sides can be arranged on opposite ends or sides of the electric machine or the axle drive device.

The axle drive device can have a first output for a first and/or second vehicle wheel of a vehicle. The first output can lead to a first and/or second vehicle wheel on a first and/or second output side at least one output variable that flows from the electric machine via the transmission device to the first output.

The first output may include a shaft that supplies torque to a first and/or second vehicle wheel to a first and/or second output side of the final drive device. The shaft can be connected in a torque-proof manner to an output part of a first, second and/or third distribution unit of the distribution device in order to transmit a torque and/or a speed from the distribution unit of the distribution device to a vehicle wheel. The shaft can also be non-rotatably connected to an output part or a first sun gear element of a second distribution unit of the distribution device in order to transmit a torque and/or a speed from the second distribution unit of the distribution device to a vehicle wheel.

In addition, the shaft can be non-rotatably connected to a rotating brake part of a first brake unit of the brake device in order to reduce a torque and/or a speed of the first distribution unit of the distribution device and/or of the shaft of the first output. Alternatively, the shaft can be non-rotatably connected to a rotating brake part of a second brake unit of the brake device in order to reduce a torque and/or a speed of the second distribution unit of the distribution device and/or of a first and/or second vehicle wheel.

The axle drive device can also have a second output for a second vehicle wheel of a vehicle. The second output can lead to at least one output variable, which flows from the electric machine via the transmission device to the second output, to a first and/or second vehicle wheel on a second and/or first output side.

In addition, the second output can include a shaft, which leads a torque to a first and/or second vehicle wheel to a second output side of the axle drive device. The shaft can be non-rotatably connected to at least one output part of a first, second and/or third distribution unit of the distribution device in order to transmit a torque and/or a speed from the corresponding distribution unit to a vehicle wheel.

The shaft can also be connected in a torque-proof manner to an output part of a third distribution unit of the distribution device and/or to an output part or/or to a second sun gear element of a second distribution unit of the distribution device in order to generate a torque and/or a speed from the third and/or second To lead distribution unit of the distribution device to a vehicle wheel. Alternatively, the shaft may be non-rotatably connected to a first or second sun gear member of a second distribution unit of the distribution device and to a rotating braking portion of a first or second braking unit of the braking device to transmit torque and/or speed to or from the second output to reduce.

Furthermore, the shaft of the electrical machine can be designed as a hollow shaft. Furthermore, the shaft of the second output and/or the shaft of the first output can be arranged inside the shaft of the electrical machine, which is designed as a hollow shaft, in order to transfer at least one output variable of the electrical machine from the one or first output side to the other or second output side or also lead to the first home page.

The at least one output variable of the electrical machine and/or the transmission device can be a speed and/or a torque.

The integral electric axle drive device can also be installed on a front axle and/or on a rear axle of an electric or hybrid vehicle.

In principle, it is also pointed out that the electrical machine, the transmission device, the braking device and/or the distribution device can be arranged not only coaxially (“on axis” or coaxial solution) with one another, for example with regard to their inputs and outputs, but also with one another offset axes (“Off Axis” solution) can be arranged. So e.g. B. instead of a planetary gear as a transmission device between the electric machine and designed as a differential distribution unit, a spur gear with one or more other shafts can be used or arranged.

In the following, the inventive idea presented above is expressed again and additionally in other words.

In simplified terms, this idea relates to architectures of electric axle drive devices in which clutches or distribution units of a distribution device and/or brakes or brake units of a braking device (brakes can be viewed as a substructure of a clutch, with one side having zero speed) in the rotor of the electrical machine can be integrated. This serves to realize an axially particularly short design. The clutches and brakes can take on different functions, such as B. an improvement in traction and lateral dynamics (torque vectoring, eLSD (electronic limited slip differential)), braking a vehicle, decoupling the electric machine, etc.

In short, it can also be an inventive idea to use standard modules for an electric machine (in various designs) and/or for a transmission device, such as a transmission gear (in various designs), and/or for a distribution unit, such as a differential (in various designs). Designs) and/or for a braking device or a braking unit (can be arranged at various points) to be able to use it to implement an integrally formed electric axle drive device.

• 1 eine schematische Ansicht auf eine integral ausgebildete elektrische Achsantriebsvorrichtung nach einem ersten Ausführungsbeispiel;
• 2 eine schematische Ansicht auf eine integral ausgebildete elektrische Achsantriebsvorrichtung nach einem zweiten Ausführungsbeispiel;
• 3 eine schematische Ansicht auf eine integral ausgebildete elektrische Achsantriebsvorrichtung nach einem dritten Ausführungsbeispiel;
• 4 eine schematische Ansicht auf eine integral ausgebildete elektrische Achsantriebsvorrichtung nach einem vierten Ausführungsbeispiel;
• 5 eine schematische Ansicht auf eine integral ausgebildete elektrische Achsantriebsvorrichtung nach einem fünften Ausführungsbeispiel;
• 6 eine schematische Ansicht auf eine integral ausgebildete elektrische Achsantriebsvorrichtung nach einem sechsten Ausführungsbeispiel; und
• 7 eine schematische Ansicht auf eine integral ausgebildete elektrische Achsantriebsvorrichtung nach einem siebten Ausführungsbeispiel.

The invention is explained in more detail below using exemplary embodiments in conjunction with the associated drawings. Here show schematically:

• 1 a schematic view of an integrally formed electric axle drive device according to a first embodiment;
• 2 a schematic view of an integrally formed electric axle drive device according to a second embodiment;
• 3 a schematic view of an integrally formed electric axle drive direction according to a third embodiment;
• 4 a schematic view of an integrally formed electric axle drive device according to a fourth embodiment;
• 5 a schematic view of an integrally formed electric axle drive device according to a fifth embodiment;
• 6 a schematic view of an integrally formed electric axle drive device according to a sixth embodiment; and
• 7 a schematic view of an integrally formed electric axle drive device according to a seventh embodiment.

In the following description, the same reference numbers are used for the same objects.

Before explaining the 1 until 7 it is also noted that in the respective functional descriptions of the individual exemplary embodiments, the electric machine 2 can also recuperate and can thus actively help to shape a braking process.

1 shows a schematic view of an integrally formed electric axle drive device 1 according to a first embodiment. Shows in more detail 1 an integrally formed electric axle drive device 1 for driving one or more vehicle wheels of an electric or hybrid vehicle.

The axle drive device 1 has an electric machine 2 with a stator 2A, with a rotor 2B and with a shaft 2C, which is connected to the rotor 2B in a rotationally fixed manner.

Furthermore, the axle drive device 1 has a transmission device 3 with an input 4 and an output 5, the input 4 being connected to the shaft 2C. The output 5, on the other hand, is connected to one or more vehicle wheels. In addition, the axle drive device 1 has a housing 6 for enclosing and delimiting.

Furthermore shows 1 that the axle drive device 1 has a distribution device 7 for dividing, further dividing and/or interrupting output variables of the transmission device 3, such as speed and torque, to one or more vehicle wheels.

In this case, the distribution device 7 is arranged inside or within the rotor 2B of the electrical machine 2 . In other words, the outer dimensions of the rotor 2B of the electrical machine 2 protrude beyond the outer dimensions of the distribution device 7, so that the rotor 2B protrudes beyond the distribution device 7 in the axial and radial directions A, R, which means that installation space or space in the axial and radial directions A, R can be saved. The axle drive device 1 can be made shorter precisely by this installation space in comparison to solutions from the prior art. In other words, shows 1 That the outer dimensions or outer dimensions or outer dimensions or outer dimensions of the rotor 2B of the electric machine 2, such as length, width and height, the outer dimensions or outer ßeren dimensions or outer dimensions or outer dimensions of Distribution device 7, such as length, width and height, tower over. The external dimensions of the rotor 2B and the external dimensions of the distribution device 7 can also be the same.

How 1 to remove, the distribution device 7 has two distribution units 8, 10 or a first 8 and a third distribution unit 10 to control a distribution of an output of the transmission device 3 to one or more vehicle wheels. The first 8 and the third distribution unit 10 connect the output 5 of the transmission device 3 to one or more vehicle wheels in order to divide, further split and/or interrupt the output variables of the transmission device 3 to one or more vehicle wheels.

Strictly speaking, the first and third distribution units 8, 10 are designed similar to a clutch device, so that the transmission device 3 can be releasably connected to one or more vehicle wheels in order to split, redistribute or interrupt the output variables of the transmission device 3 to one or more vehicle wheels or power take-offs 32 , 33 of the axle drive device 1 to control.

The first and third distribution units 8, 10 each have a disk set 11 with first disk elements 12 and second disk elements 13 and an actuating actuator 14, which moves the disk elements 12, 13 together in order to produce torque transmission. According to 1 the actuating actuator 14 is arranged inside the rotor 2B of the electric machine 2 .

In addition, the first and third distribution units 8, 10 each have a spring device (not shown, e.g. a cup spring), the spring force of which acts on the first and second lamellar elements 12, 13 and which acts against the force of the actuating actuator 14 in order to move the actuating actuator 14 in its off initial position and to release the first and second blade elements 12, 13 from mutual engagement.

Also shows 1 that the first and third distribution unit 8, 10 have an input part 15A, 15C or a common input part, which is non-rotatably connected to the output 5 of the transmission device 3 in order to transmit the output variables of the transmission device 3 from the output 5 of the transmission device 3 via the input part 15A, 15C into the distribution units 8, 10.

In contrast to the common input part 15A, 15C, the first and third distribution units 8, 10 each have an output part 16A, 16C, which is non-rotatably connected to a shaft 34, 35 of a first and second output 32, 33 of the axle drive device 1.

The input part 15A, 15C is designed similar to a hollow shaft or similar to a disk carrier, with the output parts 16A, 16C also being designed similar to a hollow shaft or similar to a disk carrier.

While the first lamella elements 12 of the lamella pack 11 of the first and third distribution units 8, 10 are arranged on the inside in a rotationally fixed manner on the input part 15A, 15C, second lamella elements 13 of the lamella pack 11 of the first and third distribution units 8, 10 are arranged on the outside in a rotationally fixed manner on the output parts 16A, 16C .

According to 1 the transmission device 3 has a planetary gear 5A, which has a sun wheel element 4A and various planetary elements 26 as well as a ring gear 27, the ring gear 27 being fixed to the housing 6 of the axle drive device 1.

While the sun gear element 4A forms the input 4 of the transmission device 3, a planetary carrier 5B, which connects the planetary elements 26 of the planetary gear 5A to one another, forms the output 5.

As in 1 shown, the sun wheel element 4A or the input 4 of the transmission device 3 is connected to the shaft 2C and the rotor 2B of the electric machine 2 in a torque-proof manner.

Furthermore, in 1 shown that the axle drive device 1 has a first output side S1 for connection to a first vehicle wheel of a vehicle and a second output side S2 for connection to a second vehicle wheel of a vehicle.

The first and second output sides S1, S2 are arranged at opposite ends or sides of the electric machine 2 or the axle drive device 1.

Furthermore shows 1 that the axle drive device 1 has a first output 32 for a first vehicle wheel of a vehicle and a second output 33 for a second vehicle wheel of a vehicle.

The first output 32 leads a torque, which flows from the electric machine 2 via the transmission device 3 to the first output 32, to a first vehicle wheel on the first output side S1. On the other hand, the second output 33 leads a torque, which flows from the electric machine 2 via the transmission device 3 to the second output 33, to a second vehicle wheel on the second output side S2.

According to 1 the first output 32 has a shaft 34 and the second output 33 has a shaft 35, which respectively supply torque to a first and second vehicle wheel (not shown) on the first and second output sides S1, S2, respectively.

The shaft 34 of the first output 32 is connected in a rotationally fixed manner to the output part 16A of the first distribution unit 8 of the distribution device 7 in order to transmit a torque and a speed from the distribution unit 8 to a vehicle wheel.

In contrast, the shaft 35 of the second output 33 is non-rotatably connected to the output part 16C of the third distribution unit 10 of the distribution device 7 in order to guide the output variables of the transmission device 3 from the corresponding distribution unit 10 to a vehicle wheel.

Furthermore shows 1 that the shaft 2C of the electrical machine 2 is designed as a hollow shaft, wherein the shaft 33 of the first output 32 is arranged inside the shaft 2C of the electrical machine 2 designed as a hollow shaft.

In 1 is - briefly summarized - an E-axle or an axle drive device 1 with a distribution device 7 or with a first and a third distribution unit 8, 10, which are arranged inside the rotor 2B of the electric machine 2.

The first embodiment will be explained below 1 described in its function.

The electric machine 2 guides the torque generated into the transmission device 4 or into the planetary gear 5A via its shaft 2C, which is designed as a hollow shaft.

The shaft 2C is connected in a torque-proof manner to the sun gear element 4A, so that the torque generated by the electric machine 2 is transmitted to the planetary elements 26, which are supported in the ring gear 27, which is fixed to the housing 6.

The torque continues to flow from the planetary elements 16 to the output 5 or to its planetary carrier 5B.

As in 1 shown, the first and third distribution unit 8, 10 share an input part 15A, 15C, which is designed similar to a disk carrier or similar to a hollow shaft. The input part 15A, 15C is also non-rotatably connected to the output 5 of the transmission device 3 or to the planetary carrier 5B of the output 5 of the transmission device 3 . First lamellar elements 12 of the lamellar packets 11 of the first and third distribution units 8, 10 are arranged in a rotationally fixed manner on the input part 15A, 15C.

By transmitting the torque of the electric machine 2 via the transmission device 3 to the distribution device 7, the torque can flow further to a first and second output 32, 33 or to their shafts 34, 35.

A disk carrier or a hollow shaft, which is formed by an output part 16A of the first distribution unit 8 , is connected to the shaft 34 of the first output 32 . In contrast, a disk carrier or a hollow shaft, which is formed by an output part 16C of the third distribution unit 10, is connected to the shaft 35 of the second output.

On the output parts 16A, 16C, second lamella elements 13 of the lamella packs 11 of the first and third distribution units 8, 10 are arranged in a rotationally fixed manner.

If, for example, the first and second lamellar elements 12, 13 of the distribution unit 8 are brought into contact by means of the actuating actuator 14, the torque generated by the electric machine 2 flows to the transmission device 3 and from there via the first distribution unit 8 to the shaft 34 of the first output 32. The same applies to the third distribution unit 10 and the shaft 35 of the second output 33.

With skillful interaction of the distribution units 8, 10, the first and second drives 32, 33 can be supplied individually and differently with torque and speed.

So e.g. B. in the case of only an activation of the actuating actuator 14 of the first distribution unit 8, the torque is distributed to the shaft 34 of the first output 32. The same applies to the reverse case, if z. B. only the third distribution unit 10 or its actuating actuator 14 is activated.

Of course, it is also possible to open or close both distribution units 8, 10 by a certain percentage in order to proportionately lead or direct or distribute a torque and a speed to the corresponding drives 32, 33. However, it is also possible to control the first and third distribution unit 8, 10 in such a way that both or only one realizes only two states, one open and one closed.

2 shows a schematic view of an integrally formed electric axle drive device 1 according to a second embodiment.

Here, the integrally formed electric axle drive device 1 for driving one or more vehicle wheels of an electric or hybrid vehicle has an electric machine 2 with a stator 2A, a rotor 2B and a shaft 2C, which is non-rotatably connected to the rotor 2B.

Furthermore, the axle drive device 1 has a transmission device 3 with an input 4 and an output 5, the input 4 being connected to the shaft 2C. The output 5 can be connected to one or more vehicle wheels.

In addition, shows 2 that the axle drive device 1 has a housing 6 for enclosing and delimitation.

Furthermore, the axle drive device 1 has a distribution device 7 for dividing, further dividing and/or interrupting output variables of the transmission device 3, such as speed and torque, to one or more vehicle wheels.

Strictly speaking, the distribution device 7 has two distribution units 8, 9, or a first 8 and a second 9 distribution unit, in order to control the distribution of an output variable from the transmission device 3 to one or more vehicle wheels.

In this case, the first distribution unit 8 is arranged inside or within the rotor 2B of the electrical machine 2 . The outer dimensions of the rotor 2B of the electrical machine 2 thus protrude beyond the outer dimensions of the first distribution unit 8 of the distribution device 7. The rotor 2B therefore protrudes beyond the distribution unit 8 in the axial and radial directions A, R, which means that installation space or space in the axial and radial Direction A, R can be saved, by which the axle drive device 1 chooses compared to solutions from the prior art can be shaped. In other words, the outer dimensions or outer dimensions or outer dimensions or outer dimensions of the rotor 2B of the electrical machine 2, such as length, width and height, exceed the outer dimensions or outer dimensions or outer dimensions or outer dimensions of the Distribution unit 8, such as length, width and height.

Furthermore shows 2 that the first 8 and second 9 distribution unit connect the output 5 of the transmission device 3 to one or more vehicle wheels in order to divide, further split and/or interrupt the output variables of the transmission device 3 to one or more vehicle wheels.

The first distribution unit 8 is designed similarly to a clutch device, so that the transmission device 3 can be releasably connected to one or more vehicle wheels in order to split, redistribute or interrupt the output variables of the transmission device 3 to one or more vehicle wheels or power take-offs 32, 33 of the axle drive device 1 to control.

So has according to 2 , The first distribution unit 8 comprises a disk set 11 with first disk elements 12 and second disk elements 13 and an actuating actuator 14, which moves the disk elements 12, 13 together in order to produce a torque transmission. The actuating actuator 14 is arranged inside the rotor 2B of the electric machine 2 .

Also, the first distribution unit 8 has spring means (not shown), such as e.g. B. a disc spring, the spring force of which acts on the first and second lamellar elements 12, 13 and which acts against the force of the actuating actuator 14 in order to return the actuating actuator 14 to its initial position or to release the first and second lamellar elements 12, 13 from mutual engagement.

Furthermore shows 2 that the first and second distribution unit 8, 9 each have an input part 15A, 15B, which is connected in a torque-proof manner to the output 5 of the transmission device 3 in order to transfer the output variables of the transmission device 3 from the output 5 of the transmission device 3 via the input part 15A, 15B into the respective distribution unit 8, 9 initiate.

Furthermore, the first and second distribution unit 8, 9 each have an output part 16A, 16B, which is non-rotatably connected to a shaft 34, 35 of a first or second output 32, 33 of the axle drive device 1.

Here, the input parts 15A, 15B are formed like a hollow shaft or similar to a disk carrier, the output parts 16A, 16B being similar to a hollow shaft or similar to a disk carrier or as sun gear elements 28, 29 of a spur gear, z. B. a spur gear differential, are formed - more on this below.

On the input part 15A - as in 2 shown - first lamellar elements 12 of a lamellar set 11 of the first distribution unit 8 are arranged in a rotationally fixed manner on the inside, with second lamellar elements 13 of the lamellar set 11 of the first distribution unit 8 being arranged in a rotationally fixed manner on the outside on the output part 16A.

In contrast, the output part 16B of the second distribution unit 9 is connected to the output part 16A of the first distribution unit 8, e.g. B. via a shaft 35 of a second output 33 of the axle drive device 1, rotatably connected. As already mentioned, the output part 16B or the output parts 16B are designed as sun wheel elements 28, 29 of the second distribution unit 9.

According to 2 the transmission device 3 has a planetary gear 5A, which has a sun gear element 4A and planetary elements 26 as well as a ring gear 27. Ring gear 27 is fixed to housing 6 of axle drive device 1 . The sun wheel element 4A forms the input 4 of the transmission device 3.

A planetary carrier 5B, which connects planetary elements 26 of the planetary gear 5A to one another, forms the output 5. Furthermore, the sun wheel element 4A or the input 4 of the transmission device 3 is non-rotatably connected to the shaft 2C and the rotor 2B of the electric machine 2.

As already indicated several times, the axle drive device 1 has a second distribution unit 9 for compensating for the output variables of the transmission device 3, such as speed and/or torque. The second distribution unit 8 is arranged outside the rotor 2B of the electrical machine 2 and is designed as a spur gear.

As already described, the second distribution unit 8 has a hollow shaft as the input part 15B, which is connected in a torque-proof manner to the output 5 of the transmission device 3 or to the planetary carrier 5B of the transmission device 3 . The input part 15B is designed as a differential carrier.

Furthermore - cf. 2 - the second distribution unit 8 has a first and a second sun gear element 28, 29 as an output part 16B, each connected to a vehicle wheel.

In addition, as in 2 shown, the second distribution unit 8 has a plurality of pairs of first and second planetary elements 30, 31, the first planetary elements 30 meshing with the first sun gear element 28 and with the second planetary elements 31, and the second planetary elements 31 meshing with the second sun gear element 29 and with the first planetary elements 30 are engaged.

In addition, the first sun gear element 28 is non-rotatably connected to a first output 32 of the axle drive device 1 or to its shaft 34, whereas the second sun gear element 29 is non-rotatably connected to a second output 33 of the axle drive device 1 or to its shaft 35.

Furthermore, according to 2 the axle drive device 1 has a first output side S1 for connection to a first vehicle wheel of a vehicle and a second output side S2 for connection to a second vehicle wheel of a vehicle. The first and second output sides S1, S2 are arranged at opposite ends or sides of the electric machine 2 or the axle drive device 1.

Furthermore, the axle drive device 1 has a first output 32 for a first vehicle wheel of a vehicle, the first output 32 leading a torque, which flows from the electric machine 2 via the transmission device 3 to the first output 32, to a first vehicle wheel on the first output side S1 .

After 2 the first output 32 has a shaft 34 which supplies torque to a first vehicle wheel on the first output side S1.

The shaft 34 is connected in a torque-proof manner to the output part 16B or to the first sun wheel element 28 of the second distribution unit 9 of the distribution device 7 in order to transmit a torque and a speed from the second distribution unit 9 to a vehicle wheel.

In addition, the axle drive device 1 has a second output 33 for a second vehicle wheel of a vehicle, which leads a torque flowing from the electric machine 2 via the transmission device 3 to the second output 33 to a second vehicle wheel on the second output side S2.

The second output 33 also has a shaft 35 which carries a torque to a second vehicle wheel on the second output side S2 of the axle drive device 1 .

As in 2 As can be seen, the shaft 35 is connected in a rotationally fixed manner to the output part 16A of the first distribution unit 8 of the distribution device 7 in order to carry the output variables of the transmission device 3 from the distribution unit 8 to a vehicle wheel.

Furthermore, the shaft 35 is connected in a rotationally fixed manner to the output part 16B or to the second sun gear element 29 of the second distribution unit 9 in order to transmit a torque and a speed from the second distribution unit 9 to a vehicle wheel.

Furthermore, in 2 shown that the shaft 2C of the electrical machine 2 is designed as a hollow shaft, with the shaft 35 of the second output 33 being arranged inside the shaft 2C of the electrical machine 2, which is designed as a hollow shaft, in order to generate a torque of the electrical machine 2 from the one or first Outgoing side S1 to the other or second output side S2.

In 2 is - briefly summarized - an E-axle or an axle drive device 1 with a distribution device 7 or with a first and a second distribution unit 8, 9, the first distribution unit 8 being arranged inside the rotor 2B of the electric machine 2 and the second distribution unit 9 outside.

The second embodiment will be explained below 2 described in its function.

The electric machine 2 guides the torque generated into the transmission device 3 or into the planetary gear 5A via its shaft 2C, which is designed as a hollow shaft.

The shaft 2C is connected in a torque-proof manner to the sun wheel element 4A of the transmission device 3, so that the torque generated by the electric machine 2 is transmitted to the planetary elements 26 of the transmission device 3, with the planetary elements 26 being supported in the ring gear 27, which is fixed to the housing 6 .

The torque continues to flow from the planetary elements 26 to the output 5 or to its planetary carrier 5B.

As in 2 shown, the first distribution unit 8 has an input part 15A, which is designed like a disk carrier or like a hollow shaft. The input part 15A is connected in a rotationally fixed manner to the output 5 of the transmission device 3 or to the planetary carrier 5B of the output 5 of the transmission device 3 . First lamellar elements 12 of the lamellar set 11 of the first distribution unit 8 are arranged in a rotationally fixed manner on the input part 15A.

By transmitting the torque of the electric machine 2 via the transmission device 3 to the first distribution unit 8 of the distribution device 7, the torque of the transmission device 3 can flow further to the second output 33 or to its shaft 34.

A disk carrier or a hollow shaft, which is formed by an output part 16A of the first distribution unit 8, is connected to the shaft 35 of the second output 33.

On the outside of the output part 16A, second lamellar elements 13 of the lamellar set 11 of the first distribution unit 8 are arranged in a rotationally fixed manner.

Furthermore shows 2 that the second distribution unit 9 also includes an input part 15B, which is designed as a differential carrier and is non-rotatably connected to the output 5 of the transmission device 3 or to the planetary carrier 5B of the output 5 of the transmission device 3. The first and second planetary elements 30, 31 are rotatably arranged on the input part 15B or on its side walls (not shown). The first planetary elements 30 mesh with the first sun gear element 28 and the second planetary elements 31 , with the second planetary elements 31 meshing with the second sun gear element 29 and with the first planetary elements 30 .

Furthermore shows 2 that with the shaft 35 of the second output 33, the second sun wheel element 29 and - as already mentioned - the output part 16A is rotatably connected. Only the first sun wheel element 28 is non-rotatably connected to the shaft 34 of the first output.

If the electric machine 2 now generates a torque and a speed, these are passed into the transmission device 3 and distributed in equal parts to the shafts 34, 35 of the first and second output 32, 33 via the second distribution unit 9.

If, for example, a vehicle with the explained axle drive device 1 drives a right turn, a greater speed must be distributed from the second distribution unit 9 to the first output 32, since a vehicle wheel has to cover a greater distance on the first output side S1 than on the second output side S2 . The torque on both output sides S1, S2, however, remains the same.

In another scenario, for example, if the second output 33 or a vehicle wheel attached to it has less friction with the road than the first output 32, the second distribution unit 9 distributes a larger proportion of the speed to the first output 32. This behavior of the second distribution unit 9, the first distribution unit 8 can bring its first and second lamellar elements 12, 13 into contact by means of the actuating actuator 14. As a result, the speed between the output 5 of the transmission device 3 and the shaft 35 of the second output 33 is adjusted. In this way, a locking differential can be implemented.

In other words, shows 2 an integrally formed electric axle drive device 1, with a controlled differential lock in a lamellar design (eLSD) or the first distribution unit 8 being arranged in the rotor 2B. As a variant, the differential lock or the first distribution unit 8 could also be passive, ie as a so-called passive multi-plate locking differential or as a simple LSD (Limited Slip Differential).

3 shows a schematic view of an integrally formed electric axle drive device 1 according to a third embodiment.

The integrally formed electric axle drive device 1 for driving one or more vehicle wheels of an electric or hybrid vehicle has an electric machine 2 with a stator 2A, a rotor 2B and a shaft 2C which is non-rotatably connected to the rotor 2B.

Furthermore, the axle drive device 1 has a transmission device 3 with an input 4 and an output 5, the input 4 being connected to the shaft 2C. The output 5 is - shown roughly - connected to one or more vehicle wheels.

Furthermore, the axle drive device 1 has a housing 6 for enclosing and delimiting the axle drive device 1.

In addition, the axle drive device 1 includes a distribution device 7 for dividing, further dividing and/or interrupting output variables of the transmission device 3, such as speed and torque, to one or more vehicle wheels. The distribution device 7 or a first and a third distribution unit 8 , 10 of the distribution device 7 is arranged inside or inside the rotor 2B of the electrical machine 2 .

The outer dimensions of the rotor 2B of the electrical machine 2 exceed the outer dimensions of the first and third distribution unit 8, 10 of the distribution device 7, so that the rotor 2B protrudes beyond the distribution units 8, 10 in the axial and radial directions A, R. As a result, installation space or space in the axial and radial directions A, R can be saved which the axle drive device 1 can be made shorter in comparison to solutions from the prior art. In other words, the outer dimensions or external dimensions or external dimensions of the rotor 2B of the electrical machine 2, such as length, width and height, protrude beyond the outer dimensions or external dimensions or external dimensions or external dimensions of the first and third distribution units 8, 10, such as length, width and height.

As mentioned and in 3 shown, the distribution device 7 has three distribution units 8, 9, 10 or a first 8, a second 9 and a third distribution unit 10 in order to control a distribution of the output variables of the transmission device 3 to one or more vehicle wheels.

The first and third distribution units 8, 10 connect the output 5 of the transmission device 3 to one or more vehicle wheels in order to divide, further split and/or interrupt the output variables of the transmission device 3 to one or more vehicle wheels.

As in 3 As can be seen, the first and third distribution units 8, 10 are designed similarly to a clutch device, so that the transmission device 3 can be detachably connected to one or more vehicle wheels in order to further divide or interrupt the output variables of the transmission device 3 to outputs 32, 33 of the axle drive device 1 steer.

Thus, each of the first and third distribution units 8, 10 has a disk set 11 with first disk elements 12 and second disk elements 13 and an actuating actuator 14, which moves the disk elements 12, 13 together in order to transmit torque. The actuating actuator 14 is arranged inside the rotor 2B of the electric machine 2 .

In addition, the first and third distribution unit 8, 10 has a spring device (not shown), such as. B. a plate spring, the spring force of which acts on the first and second lamellar elements 12, 13 and which acts against the force of the actuating actuator 14 in order to release the first and second lamellar elements 12, 13 from mutual engagement.

According to 3 the first, second and third distribution unit 8, 9, 10 each has an input part 15A, 15B, 15C, the input part 15A of the first distribution unit 8 being non-rotatably connected to the output 5 of the transmission device 3 in order to transfer the output variables of the transmission device 3 from the output 5 of the transmission device 3 to be introduced into the distribution unit 8 via the input part 15A.

also is 3 it can be seen that the input parts 15B, 15C of the second and third distribution unit 9, 10 are connected to one another in a rotationally fixed manner and together form an output part 16A of the first distribution unit 8.

Likewise, the second and third distribution units 9, 10 have output parts 16A, 16B, 16C, which are connected to a shaft 34, 35 of a first and second output 32, 33 of the axle drive device 1 in a torque-proof manner. Strictly speaking, the output part 16B of the second distribution unit 9 comprises sun gear elements 28, 29.

The input parts 15A, 15B, 15C are similar to a hollow shaft or similar to a disk carrier, the output parts 16A, 16B, 16C are similar to a hollow shaft or similar to a disk carrier or as sun gear elements 28, 29 of a spur gear, z. B. a spur gear formed.

On the input parts 15A, 15C of the first and third distribution unit 8, 10, first lamella elements 12 of the lamella pack 11 of the first and third distribution unit 8, 10 are arranged in a rotationally fixed manner.

On the output parts 16A, 16C of the first and third distribution unit 8, 10, second disk elements 13 of the disk pack 11 of the first and third distribution unit 8, 10 are arranged on the outside in a rotationally fixed manner.

As in 3 shown, the transmission device 3 has a planetary gear 5A, which has at least one sun wheel element 4A and planetary elements 26 and a ring gear 27. Ring gear 27 is fixed to housing 6 of axle drive device 1 . The sun wheel element 4A forms the input 4 of the transmission device 3. A planet carrier 5B, which connects the planetary elements 26 of the planetary gear 5A to one another, forms the output 5.

The sun wheel element 4A or the input 4 of the transmission device 3 is connected to the shaft 2C and the rotor 2B of the electric machine 2 in a torque-proof manner.

Furthermore shows 3 That the axle drive device 1 - as already mentioned - has a second distribution unit 9 to compensate for the output variables of the transmission device 3, such as speed and torque. The second distribution unit 8 is arranged outside the rotor 2B of the electrical machine 2 and is designed as a spur gear.

According to 3 has the second distribution unit 8 as an input part 15B a hollow shaft which rotates with is connected to the output 5 of the transmission device 3 or to the planetary carrier 5B. The input part 15B is designed as a differential carrier.

In addition, the second distribution unit 8 has first and second sun gear elements 28, 29 as an output part 16B, each connected to a vehicle wheel.

Furthermore, the second distribution unit 8 has a plurality of pairs of first and second planetary elements 30, 31, the first planetary elements 30 meshing with the first sun gear element 28 and with the second planetary elements 31, and the second planetary elements 31 meshing with the second sun gear element 29 and are engaged with the first planetary elements 30 .

Furthermore shows 3 that the first sun gear element 28 is non-rotatably connected to a first output 32 of the axle drive device 1 or to its shaft 34, whereas the second sun gear element 29 is non-rotatably connected to a second output 33 of the axle drive device 1 or to its shaft 35.

Also, the final drive device 1 has a first output side S1 for connection to a first vehicle wheel of a vehicle and a second output side S2 for connection to a second vehicle wheel of a vehicle.

The first and second output sides S1, S2 are arranged at opposite ends or sides of the electric machine 2 or the axle drive device 1.

The axle drive device 1 has a first output 32 for a first vehicle wheel and a second output 33 for a second vehicle wheel of a vehicle.

The first output 32 leads a torque, which flows from the electric machine 2 via the transmission device 3 to the first output 32, to a first vehicle wheel on the first output side S1.

According to 3 the first output 32 has a shaft 34 which supplies torque to a first vehicle wheel on the first output side S1.

Furthermore, the shaft 34 is connected in a torque-proof manner to the output part 16B or to the first sun wheel element 28 of the second distribution unit 9 in order to transmit a torque and a speed from the distribution unit 9 to a vehicle wheel.

The second output 33, on the other hand, leads a torque, which flows from the electric machine 2 via the transmission device 3 to the second output 33, to a second vehicle wheel on the second output side S2. The second output 33 includes a shaft 35 which leads a torque to a second vehicle wheel to a second output side S2 of the axle drive device 1 .

The shaft 35 is non-rotatably connected to the output parts 16B, 16C of the second and third distribution units 9, 10 in order to lead the outputs of the transmission device 3 from the corresponding distribution unit 9, 10 to a vehicle wheel.

Thus, the shaft 35 is non-rotatably connected to the output portion 16C of the third distribution unit 10 and to the second sun gear member 29 of the second distribution unit 9 to supply torque and speed from the second and third distribution units 9, 10 to a vehicle wheel.

Furthermore shows 3 that the shaft 2C of the electrical machine 2 is designed as a hollow shaft. Furthermore, the shaft 35 of the second output 33 is arranged inside the shaft 2C of the electric machine 2, which is designed as a hollow shaft, in order to conduct a torque of the electric machine 2 from the one or first output side S1 to the other or second output side S2.

3 shows - briefly summarized - an E-axle or an axle drive device 1 with a distribution device 7 or with a first, a second and a third distribution unit 8, 9, 10, the first and third distribution unit 8, 10 being inside the rotor 2B the electrical machine 2 is arranged and the second distribution unit 9 outside.

The third embodiment will be explained below 3 described in its function.

The electric machine 2 guides the torque generated into the transmission device 3 or into the planetary gear 5A via its shaft 2C, which is designed as a hollow shaft.

The shaft 2C is connected in a torque-proof manner to the sun wheel element 4A of the transmission device 3, so that the torque generated by the electric machine 2 is transmitted to the planetary elements 26 of the transmission device 3, with the planetary elements 26 being supported in the ring gear 27, which is fixed to the housing 6 .

The torque continues to flow from the planetary elements 26 to the output 5 or to its planetary carrier 5B.

In 3 is further shown that the first distribution unit 8 has an input part 15A, which is similar to a disk carrier or similar to a hollow shaft is trained. The input part 15A is connected in a rotationally fixed manner to the output 5 of the transmission device 3 or to the planetary carrier 5B of the output 5 of the transmission device 3 . First lamellar elements 12 of the lamellar set 11 of the first distribution unit 8 are arranged in a rotationally fixed manner on the input part 15A.

By transmitting the torque of the electric machine 2 via the transmission device 3 to the first distribution unit 8 of the distribution device 7, the torque of the transmission device 3 can flow further to the second and third distribution units 9, 10. For this purpose, the first distribution unit 8 has an output part 16A, on which second lamella elements 13 of the lamella pack 11 of the first distribution unit 8 are arranged in a rotationally fixed manner.

Furthermore 3 it can be seen that the output part 16A of the first distribution unit 8 and the input parts 15B, 15C of the second and third distribution unit 9, 10 form a common component, so that the output part 16A and the input parts 15B, 15C are connected to one another in a torque-proof manner.

It is thus possible, on the one hand, to forward the torque of the electric machine 2 from the first distribution unit 8 to the second and third distribution units 9, 10.

For this purpose, as already mentioned, second lamellar elements 13 are arranged in a rotationally fixed manner on the outside of the output part 16A.

Furthermore, first lamella elements 12 of the lamella pack 11 of the third distribution unit 10 are arranged in a rotationally fixed manner on the inside of the outlet part 16A or the inlet part 15C of the third distribution unit 10 .

The shaft 35 of the second output 33 is arranged on the output part 16C of the third distribution unit 10, which is designed as a disk carrier or as a hollow shaft, so that the torque that the third distribution unit 10 receives from the first 8 is transmitted completely or partially to the shaft 35 is forwardable.

Furthermore shows 3 that the second distribution unit 9 also includes an input part 15B, which is designed as a differential carrier and is non-rotatably connected to the output part 16A of the first 8 and non-rotatably connected to the input part 15C of the third distribution unit 10. The first and second planetary elements 30, 31 are rotatably arranged on the input part 15B or on its side walls (not shown). The first planetary elements 30 mesh with the first sun gear element 28 and the second planetary elements 31 , with the second planetary elements 31 meshing with the second sun gear element 29 and with the first planetary elements 30 .

Furthermore shows 3 that with the shaft 35 of the second output 33, the second sun wheel element 29 and - as already mentioned - the output part 16B is rotatably connected. Only the first sun wheel element 28 is non-rotatably connected to the shaft 34 of the first output 32 .

If the electric machine 2 now generates a torque and a speed, these are conducted into the transmission device 3 and forwarded via the first distribution unit 8 to the second and third distribution units 9 , 10 .

While the second distribution unit 9 distributes the torque equally to the shafts 34, 35 of the first and second output 32, 33, the third distribution unit 10 can transmit part of the torque from the first distribution unit 8 directly to the shaft 35.

Thus, several driving scenarios are covered with the axle drive device 1 .

If, for example, a vehicle with the explained axle drive device 1 drives a right turn, a greater speed must be distributed from the second distribution unit 9 to the first output 32, since a vehicle wheel has to cover a greater distance on the first output side S1 than on the second output side S2 . The torque on both output sides S1, S2, however, remains the same.

In another scenario, for example, if the second output 33 or a vehicle wheel attached to it has less friction with the road than the first output 32, the second distribution unit 9 distributes a larger proportion of the speed to the first output 32. This behavior of the second distribution unit 9, the third distribution unit 10 can bring its first and second lamellar elements 12, 13 into contact by means of the actuating actuator 14. As a result, the speed between the output 5 of the transmission device 3 and the shaft 35 of the second output 33 is adjusted. In this way, a locking differential can be implemented.

With the first distribution unit 8, for example, the proportion of the torque that is supplied by the transmission device 3 can be set, so that z. B. only 50 percent of the torque generated by the electric machine 2 and converted by the transmission device 3 is passed on to the outputs 32, 33. But it is also possible, the first distribution unit 8 to control that this only realizes two states, one open and one closed.

4 shows a schematic view of an integrally formed electric axle drive device 1 according to a fourth embodiment.

The integrally formed electric axle drive device 1 for driving one or more vehicle wheels of an electric or hybrid vehicle has an electric machine 2 with a stator 2A, a rotor 2B and a shaft 2C which is non-rotatably connected to the rotor 2B.

Furthermore, the axle drive device 1 has a transmission device 3 with an input 4 and an output 5, the input 4 being connected to the shaft 2C and the output 5 being connectable to one or more vehicle wheels.

In addition, the axle drive device 1 has a housing 6 for enclosing and delimiting the axle drive device 1.

Also shows 4 that the axle drive device 1 has a distribution device 7 for dividing, further dividing and/or interrupting output variables of the transmission device 3, such as speed and torque, to one or more vehicle wheels.

Also has according to 4 the axle drive device 1 has a braking device 17 for completely or partially braking or slowing down one or more vehicle wheels.

A first distribution unit 8 of the distribution device 7 and a first braking unit 18 of the braking device 17 are arranged inside or inside the rotor 2B of the electrical machine 2 . The outer dimensions of the rotor 2B of the electrical machine 2 exceed the outer dimensions of the first distributor unit 8 of the distributor device 7 and the first brake unit 18 of the brake device 17, so that the rotor 2B projects beyond the distributor device 7 and the brake device 17 in the axial and radial directions A, R . As a result, installation space or space in the axial and radial direction A, R can be saved, by which the axle drive device 1 can be made shorter in comparison to solutions from the prior art. Expressed again in other words, the external dimensions or external dimensions or external dimensions of the rotor 2B of the electrical machine 2, such as length, width and height, exceed the external dimensions or external dimensions or external dimensions or external dimensions of the distribution device 7 and the braking device 17, such as length, width and height.

From a further description regarding the electric machine 2, the transmission device 3, the first distribution unit 8 or the distribution device 7 and the first output 32 of the axle drive device 1 for the sake of brevity and to avoid unnecessary repetitions on the explanations of the first embodiment 1 referred. The statements relating to the first exemplary embodiment then apply 1 here with regard to the fourth embodiment 4 analogous.

Thus, in the following, the differences only between the first exemplary embodiment are shown 1 and the fourth embodiment 4 explained.

When comparing the 1 and 4 It is immediately apparent that the fourth exemplary embodiment has no second output 33. Thus, the final drive device 1 is suitable 4 only in duplicate for one axle of a vehicle.

Another difference between the 1 and 4 it can be seen that the fourth embodiment includes a braking device 17 compared to the first embodiment. This is missing in 1 entirely.

According to 4 the braking device 17 has a first braking unit 18 which is designed similarly to a clutch device, so that a vehicle wheel or the first output 32 of the axle drive device 1 can be slowed down in a controlled manner by means of a braking torque generated by this.

The first brake unit 18 has a fixed brake part 20A and a rotating brake part 21A, the fixed and the rotating brake part 20A, 21A being designed similarly to a disk carrier.

The stationary brake part 20A is connected to the housing 6 of the axle drive device 1 in a torque-proof manner, with the rotating brake part 21A being connected to the shaft 34 of the first output 32 of the axle drive device 1 in a torque-proof manner.

Furthermore, the first brake unit 18 has a disk pack 22 with first disk elements 23 and second disk elements 24 and an actuating actuator 25, which moves the disk elements 23, 24 together in order to convert rotational energy into thermal energy.

In addition, the first brake unit 18 has a spring device (not shown), such as. Legs Plate spring, the spring force of which acts on the first and second lamellar elements 23, 24 and which acts against the force of the actuating actuator 25 in order to return the actuating actuator 25 to its initial position or to release the first and second lamellar elements 23, 24 from mutual engagement.

As in 4 As can be seen, the first lamellar elements 23 are arranged in a rotationally fixed manner on the inside of the stationary brake part 20A, with the second lamellar elements 24 being arranged in a rotationally fixed manner on the outside of the rotating brake part 21A.

Furthermore shows 4 that the shaft 34 of the first output 32 of the axle drive device 1 is non-rotatably connected to the output part 16A of a first distribution unit 8 of the distribution device 7 in order to lead a torque and a speed from the distribution unit 8 to a vehicle wheel.

In addition, the shaft 34 is non-rotatably connected to the rotating brake part 21A of the first brake unit 18 of the brake device 17 in order to reduce a torque and a speed of the first distribution unit 8 of the distribution device 7 and of the shaft 34 of the first output 32.

Also shows 4 that the shaft 2C of the electric machine 2 is designed as a hollow shaft, the shaft 33 of the first output 32 being arranged inside the shaft 2C of the electric machine 2, designed as a hollow shaft, in order to guide a torque of the electric machine 2 to the first output side S1 .

In 4 is - briefly summarized - an electric axle or an axle drive device 1 with a distribution device 7 or with a first distribution unit 8 and with a braking device 17 or with a first braking unit 18, both inside the rotor 2B of the electric machine 2 are arranged.

The fourth exemplary embodiment is described below in addition to the explanations given in accordance with 1 described in its function.

In addition to forwarding the torque of the first distribution unit 8 to the shaft 34 of the first output 32, the axle drive device 1 with its brake unit 18 is able to brake the shaft 34 in a controlled manner.

5 shows a schematic view of an integrally formed electric axle drive device 1 according to a fifth embodiment.

The integrally formed electric axle drive device 1 for driving one or more vehicle wheels of an electric or hybrid vehicle has an electric machine 2 with a stator 2A, a rotor 2B and a shaft 2C which is non-rotatably connected to the rotor 2B.

In addition, the axle drive device 1 has a transmission device 3 with an input 4 and an output 5, the input 4 being connected to the shaft 2C, and the output 5 being connectable to one or more vehicle wheels.

Furthermore shows 5 that the axle drive device 1 has a housing 6 for enclosing and delimiting the axle drive device 1.

The axle drive device 1 also has a distribution device 7 for dividing, further dividing and/or interrupting output variables from the transmission device 3, such as speed and torque, to one or more vehicle wheels.

Also shows 5 that the axle drive device 1 has a braking device 17 for the complete or partial braking or slowing down of one or more vehicle wheels.

The distribution device 7 or its first distribution unit 8 and the braking device 17 or its first braking unit 18 are arranged inside or inside the rotor 2B of the electrical machine 2 .

The outer dimensions of the rotor 2B of the electrical machine 2 exceed the outer dimensions of the first distribution unit 8 of the distribution device 7 and the first brake unit 18 of the brake device 17, so that in the axial and radial directions A, R the rotor 2B the first distribution unit 8 and the first brake unit 18 towers. As a result, installation space or space in the axial and radial direction A, R can be saved, by which the axle drive device 1 can be made shorter in comparison to solutions from the prior art. In other words, the outer dimensions or external dimensions or external dimensions of the rotor 2B of the electrical machine 2, such as length, width and height, exceed the outer dimensions or external dimensions or external dimensions or external Dimensions of the first distribution unit 8 and the first brake unit 18, such as length, width and height.

From a further description relating to the electric machine 2, the transmission device 3, the first distribution unit 8 or the distribution device 7, the first and second output 32, 34 of the axle For the sake of brevity and to avoid unnecessary repetition, drive device 1 will be referred to the statements relating to the second exemplary embodiment 2 referred. The statements relating to the second exemplary embodiment then apply 2 here with regard to the fifth embodiment 5 analogous.

Thus, the differences only between the second embodiment are explained below 2 and according to the fifth embodiment 5 explained.

When comparing the 2 and 5 It is immediately apparent that the fifth exemplary embodiment comprises a braking device 17 in comparison to the second exemplary embodiment. This is missing in 2 entirely.

According to 5 the braking device 17 has a first braking unit 18, which is designed similarly to a clutch device, so that a vehicle wheel or the second output 32 of the axle drive device 1 can be slowed down in a controlled manner by means of a braking torque generated by this.

The first brake unit 18 has a fixed brake part 20A and a rotating brake part 21A, the fixed and the rotating brake part 20A, 21A being designed similarly to a disk carrier.

The stationary brake part 20A is connected to the housing 6 of the axle drive device 1 in a torque-proof manner, with the rotating brake part 21A being connected to the shaft 35 of the second output 33 of the axle drive device 1 in a torque-proof manner.

Furthermore, the first brake unit 18 has a disk set 22 with first disk elements 23 and second disk elements 24 and an actuating actuator 25, which moves the disk elements 23, 24 together in order to convert rotational energy into thermal energy.

In addition, the first brake unit 18 has a spring device (not shown), such as. B. a disc spring, the spring force of which acts on the first and second lamellar elements 23, 24 and which acts against the force of the actuating actuator 25 in order to return the actuating actuator 25 to its initial position or to release the first and second lamellar elements 23, 24 from mutual engagement.

As in 5 shown, the first lamella elements 23 are arranged non-rotatably on the inside of the stationary braking part 20A, with the second lamella elements 24 being arranged non-rotatably on the outside of the rotating braking part 21A.

Furthermore shows 5 that the shaft 35 of the second output 33 of the axle drive device 1 is non-rotatably connected to the output part 16A of the first distribution unit 8 of the distribution device 7 in order to lead a torque and a speed from the distribution unit 8 to a vehicle wheel.

In addition, the shaft 35 is non-rotatably connected to the rotating brake part 21A of the first brake unit 18 of the brake device 17 in order to reduce a torque and a speed of the first distribution unit 8 of the distribution device 7 and of the shaft 35 of the second output 33 .

In other words, the shaft 35 is non-rotatably connected to the second sun gear member 29 of the second distribution unit 9 of the distribution device 7 and to the rotary brake part 21A of the first brake unit 18 to reduce torque and speed from the second distribution unit 9.

In addition, shows 5 that the shaft 2C of the electric machine 2 is designed as a hollow shaft, the shaft 35 of the second output 33 being arranged inside the shaft 2C of the electric machine 2, designed as a hollow shaft, in order to guide a torque of the electric machine 2 to the second output side S2 .

So is in 5 - briefly summarized - an electric axle or an axle drive device 1 with a distribution device 7 or with a first distribution unit 8 and with a braking device 17 or with a first braking unit 18, both of which are arranged inside the rotor 2B of the electric machine 2 are.

The fifth exemplary embodiment is described below in addition to the explanations given in accordance with 2 described in its function.

In addition to forwarding the torque of the first distribution unit 8 to the shaft 35 of the second output 33 to z. B. to realize a limited slip differential, the axle drive device 1 with its brake unit 18 is able to brake the shaft 35 in a controlled manner.

However, it is also possible to control the first distribution unit 8 in such a way that it only implements two states, one open and one closed.

6 shows a schematic view of an integrally formed electric axle drive device 1 according to a sixth embodiment.

The integrally formed electric axle drive device 1 for driving one or more vehicle wheels of an electric or hybrid vehicle has an electric machine 2 with a stator 2A, a rotor 2B and a shaft 2C which is non-rotatably connected to the rotor 2B.

In addition, the axle drive device 1 has a transmission device 3 with an input 4 and an output 5, the input 4 being able to be connected to the shaft 2C or to the rotor 2B. The output 5 can be connected to one or more vehicle wheels.

In addition, the axle drive device 1 has a housing 6 for enclosing and delimiting the axle drive device 1.

In addition, the axle drive device 1 includes a distribution device 7 for dividing, further dividing and/or interrupting output variables of the transmission device 3 and/or the electric machine 2, such as speed and torque, to one or more vehicle wheels.

Furthermore, the axle drive device 1 has a braking device 17 for completely or partially braking or slowing down one or more vehicle wheels.

According to 6 a first distribution unit 8 of the distribution device 7 and a first braking unit 18 of the braking device 17 are arranged inside or inside the rotor 2B of the electric machine 2 . The outer dimensions of the rotor 2B of the electrical machine 2 exceed the outer dimensions of the first distribution unit 8 of the distribution device 7 and the first brake unit 18 of the brake device 17, so that in the axial and radial directions A, R the rotor 2B the first distribution unit 8 and the first brake unit 18 towers. As a result, installation space or space in the axial and radial direction A, R can be saved, by which the axle drive device 1 can be made shorter in comparison to solutions from the prior art. In other words, the outer dimensions or external dimensions or external dimensions of the rotor 2B of the electrical machine 2, such as length, width and height, exceed the outer dimensions or external dimensions or external dimensions or external Dimensions of the first distribution unit 8 and the first brake unit 18, such as length, width and height, or are the same,

According to 6 the distribution device 7 has two distribution units 8, 9 or a first 8 and a second 9 distribution unit in order to control a distribution, further distribution and/or interruption of output variables of the transmission device 3 and the electric machine 2 to one or more vehicle wheels.

While the first distribution unit 8 connects the input 4 of the transmission device 3 to one or more vehicle wheels in order to divide, further distribute and/or interrupt the output variables of the electric machine 2 to one or more vehicle wheels, the second distribution unit 9 connects the output 5 of the transmission device 3 with one or more vehicle wheels in order to realize a division, further division and/or an interruption of the output variables of the transmission device 3 to one or more vehicle wheels.

In this case, the first distribution unit 8 is designed similar to a coupling device, so that the electric machine 2 can be releasably connected to one or more vehicle wheels in order to divide, further divide and/or interrupt the output variables of the electric machine 2 to one or more vehicle wheels or power take-offs 32, 33 of the axle drive device 1 to control.

while showing 6 that the first distribution unit 8 comprises a disk set 11 with first disk elements 12 and second disk elements 13 and an actuating actuator 14, which moves the disk elements 12, 13 together in order to produce a torque transmission. The actuating actuator 14 is arranged inside the rotor 2B of the electric machine 2 .

Furthermore, the first distribution unit 8 has a spring device (not shown), such as. B. a disc spring, the spring force of which acts on the first and second lamellar elements 12, 13 and which acts against the force of the actuating actuator 14 in order to reset the actuating actuator 14 to its initial position or to release the first and second lamellar elements 12, 13 from mutual engagement.

According to 6 the first distribution unit 8 has an input part 15A, which is formed by the rotor 2B of the electric machine 2, in order to introduce a torque and a speed into the distribution unit 8. In addition, the first distribution unit 8 has an output part 16A, which forwards a torque and a speed of the electric machine 2 to the input 4 of the transmission device 3, with the output part 16A being non-rotatably connected to the input 4 of the transmission device 3. In other words, the rotor 2B of the electrical machine 2 is connected to the input 4 of the transmission device 3 via the output part 16A of the first distribution unit 8 .

On the input part 15A of the first distribution unit 8, first lamellar elements 12 of the lamellar set 11 are arranged in a rotationally fixed manner on the inside, with second lamellar elements 13 of the lamellar set 11 being arranged in a rotationally fixed external manner on the output part 16A.

Furthermore shows 6 that the second distribution unit 9 has an input part 15B, which is non-rotatably connected to the output 5 of the transmission device 3 in order to introduce output variables of the transmission device 3 from the output 5 of the transmission device 3 via the input part 15B into the distribution unit 9.

In addition, the second distribution unit 9 has an output part 16B, which is non-rotatably connected to the shafts 34, 35 of a first and second output 32, 33 of the axle drive device 1. Strictly speaking, the output part 16B of the second distribution unit 9 has sun gear elements 28, 29. More on this below.

As in 6 shown, the input parts 15A, 15B are designed like the output parts 16A, 16B, namely similar to a hollow shaft or similar to a disk carrier or as a spur gear.

As already mentioned, shows 6 that the braking device 17 has a first braking unit 18 which is designed similarly to a clutch device, so that one or more vehicle wheels or output drives 32, 33 of the axle drive device 1 can be slowed down in a controlled manner by means of a braking torque generated by this.

Here, the first brake unit 18 has a fixed brake part 20A and a rotary brake part 21A. The stationary and rotating brake part 20A, 21A are designed similar to a hollow shaft or similar to a disk carrier, the stationary brake part 20A being connected to the housing 6 of the axle drive device 1 in a rotationally fixed manner. The rotating brake part 21A, on the other hand, is connected in a torque-proof manner to a shaft 35 of a second output 33 of the axle drive device 1 .

Furthermore shows 6 that the first brake unit 18 comprises a disk pack 22 with first disk elements 23 and second disk elements 24 and an actuating actuator 25, which moves the disk elements 23, 24 together in order to convert rotational energy into thermal energy.

In addition, the first brake unit 18 has a spring device (not shown), such as. B. a disc spring, the spring force of which acts on the first and second lamellar elements 23, 24 and which acts against the force of the actuating actuator 25 in order to return the actuating actuator 25 to its initial position or to release the first and second lamellar elements 23, 24 from mutual engagement. The first lamella elements 23 are arranged in a rotationally fixed manner on the inside of the stationary braking part 20A, with the second lamella elements 24 being arranged in a rotationally fixed manner on the outside of the rotating braking part 21A.

With a view to 6 it can be seen that the transmission device 3 has a planetary gear 5A, which has a sun gear element 4A and a plurality of planetary elements 26 and a ring gear 27 . Ring gear 27 is fixed to housing 6 of axle drive device 1 , sun gear element 4A forming input 4 of transmission device 3 . A planetary carrier 5B, which connects the planetary elements 26 to one another, forms the output 5.

The sun wheel element 4A or the input 4 of the transmission device 3 is connected to the output part 16A of the first distribution unit 8 in a torque-proof manner.

As already indicated, the axle drive device 1 has a second distribution unit 9 of the distribution device 7 for compensating for the output variables of the transmission device 3, such as speed and torque. The second distribution unit 8 is arranged outside the rotor 2B of the electric machine 2 and is designed as a spur gear or as a spur gear differential.

According to 6 the second distribution unit 8 has a hollow shaft as the input part 15B, which is non-rotatably connected to the output 5 of the transmission device 3 or to the planetary carrier 5B of the transmission device 3 . The input part 15B is designed as a differential carrier.

In addition, the second distribution unit 8 has a first and a second sun wheel element 28, 29 as an output part 16B, each of which can be connected to a vehicle wheel.

After 6 the second distribution unit 8 has a plurality of pairs of first and second planetary elements 30, 31, the first planetary elements 30 meshing with the first sun gear element 28 and with the second planetary elements 31, and the second planetary elements 31 meshing with the second sun gear element 29 and with the first planetary elements 30 are engaged.

The first sun gear element 28 is non-rotatably connected to a first output 32 of the axle drive device 1 or to its shaft 34, with the second sun gear element 29 being non-rotatably connected to a second output 33 of the axle drive device 1 or to its shaft 35. Furthermore, the second sun gear 29 with the rotary brake part 21A of the first brake unit 18 is non-rotatably connected.

In addition, shows 6 that the axle drive device 1 has a first output side S1 for connection to a first vehicle wheel of a vehicle and a second output side S2 for connection to a second vehicle wheel of a vehicle.

The first and second output sides S1, S2 are arranged at opposite ends or sides of the electric machine 2 or the axle drive device 1.

As already mentioned, the axle drive device 1 also has a first output 32 for a first vehicle wheel of a vehicle and a second output 33 for a second vehicle wheel of a vehicle.

The first output 32 leads a torque, which flows from the electric machine 2 via the transmission device 3 to the first output 32, to a first vehicle wheel on the first output side S1.

The first output 32 has a shaft 34 which supplies torque to a first vehicle wheel on the first output side S1. The shaft 34 is non-rotatably connected to the output part 16B or to the first sun gear element 28 of the second distribution unit 9 of the distribution device 7 in order to carry a torque and a speed from the second distribution unit 9 to a vehicle wheel.

The second output 33, on the other hand, leads a torque, which flows from the electric machine 2 via the transmission device 3 to the second output 33, to a second vehicle wheel on the second output side S2. The second output 33 also has a shaft 35 which supplies torque to a second vehicle wheel on the second output side S2. The shaft 35 is non-rotatably connected to the second sun gear element 29 of the second distributor unit 9 of the distributor device 7 and to the rotating brake part 21A of the first brake unit 18 of the brake device 17 in order to transmit a torque and a speed to the second output 33 or from the second To reduce distribution unit 9.

So is in 6 - Briefly summarized - an E-axle or an axle drive device 1 with a distribution device 7 or with a first and second distribution unit 8, 9 and with a braking device 17 or with a first braking unit 18 is shown, the first distribution unit 8 and the first Braking unit 18 inside the rotor 2B of the electric machine 2 are arranged.

The seventh embodiment is explained below in addition to the explanations according to FIG 5 described in its function.

When comparing the 5 and 6 it is noticeable that these are constructed identically with regard to the first brake unit 18, the transmission device 3, the electric machine 2 and the second distribution unit 8. The differences relate to the connections and design of the first distribution unit 8. With regard to the functional explanations relating to the first brake unit 18, the transmission device 3 and the second distribution unit 8, reference is made to the explanations as can be found in the fifth exemplary embodiment.

While now in 5 the first distribution unit 8 is connected with its input part 15A to the output 5 of the transmission device 3 is in 6 the first distribution unit 8 is connected with its output part 16A to the input 4 of the transmission device 3. Furthermore, in 6 the input part 15A of the first distribution unit 8 is formed by the rotor 2B. In 5 the output part 16A is connected to the shaft 35 of the second output 33.

This has the consequence that in 6 the torque of the electrical machine 2 can be routed or routed partially, completely or not at all from the first distribution unit 8 to the transmission device 3 . This is not the case in the fifth exemplary embodiment, but no differential lock can be implemented in the seventh exemplary embodiment, but it can be implemented in the fifth exemplary embodiment.

7 shows a schematic view of an integrally formed electric axle drive device 1 according to a seventh embodiment.

Due to the fact that the 6 and 7 are almost identical, in terms of a detailed description 7 to the explanations 6 referred.

When comparing the 6 and 7 it is noticeable that these are of the same design with regard to the first and second distribution unit 8 , 9 , the transmission device 3 and the electric machine 2 . Thus, with regard to the functional explanations relating to the first and second distribution unit 8, 9 and the transmission device 3, reference is made to the explanations as can be found in the seventh exemplary embodiment.

In 7 is to be carried out with regard to the first brake unit 18, which differs from the exemplary embodiment 6 differs.

The rotating brake part 21A of the first brake unit 18 is connected to the rotor 2B of the electric machine 2 in a torque-proof manner and is even designed as one part, with the second lamellar elements 24 of the disk pack 22 of the first brake unit 18 being arranged on the inside of the rotor 2B in a torque-proof manner. The first disk elements 23 of the disk pack 22 of the first brake unit 18 are arranged on the outside of the fixed brake part 20A in a rotationally fixed manner.

So while in 6 the shaft 35 of the second output 33 can be slowed down with the first brake unit 18, the first brake unit 18 in 7 the rotor 2B to be slowed down.

Reference List

1

final drive device

2

electric machine

2A

stator

2 B

rotor

2C

Wave

3

gear mechanism

4

Entry

4A

sun gear element

5

Exit

5A

planetary gear

5B

planet carrier

6

Housing

7

distribution facility

8th

first distribution unit

9

second distribution unit

10

third distribution unit

11

plate pack

12

first lamella elements

13

second lamellar elements

14

actuation actuator

15A

Input part of the first distribution unit

15B

Input part of the second distribution unit

15C

Input part of the second distribution unit

16A

Output part of the first distribution unit

16B

Output part of the second distribution unit

16C

Output part of the second distribution unit

17

braking device

18

first brake unit

19

second brake unit

20A

fixed brake part of the first brake part

20B

fixed brake part of the second brake part

21A

rotating braking part of the first braking part

21B

rotating brake part of the second brake part

22

plate pack

23

first lamella elements

24

second lamellar elements

25

actuation actuator

26

planet element

27

ring gear

28

first sun gear element

29

second sun gear element

30

first planetary elements

31

second planetary elements

32

first downforce

33

second downforce

34

Wave

35

Wave

A

axial direction

R

radial direction

S1

first home page

S2

second exit page

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 102019201989 [0002]

Claims (10)

Integrally designed electric axle drive device (1) for driving one or more vehicle wheels of an electric or hybrid vehicle, comprising: - an electric machine (2) with a stator (2A), a rotor (2B) and a shaft (2C) connected to the rotor (2B) is non-rotatably connected, - a transmission device (3) with an input (4) and an output (5), - the input (4) being connected to the shaft (2C) and/or to the rotor (2B) can be connected, - the outlet (5) being connectable to one or more vehicle wheels, and - a housing (6) for enclosing and delimiting the axle drive device (1), characterized in that - the axle drive device (1) has a distribution device (7) for dividing, further dividing and/or interrupting at least one output variable of the transmission device (3) and/or the electric machine (2), such as speed and/or torque, to one or more vehicle wheels, and/or that - the axle drive device (1) has a braking device (17) for completely or partially braking or slowing down one or more vehicle wheels, and wherein - the distribution device (7) or at least one distribution unit (8, 9, 10) of the distribution device (7) and/or the braking device (17) or at least one braking unit (18, 19) of the braking device (17) is arranged inside or within the rotor (2B) of the electrical machine (2). Axle drive device according to claim 1 , - the outer dimensions of the rotor (2B) of the electric machine (2) the outer dimensions of the distribution device (7) or the at least one distribution unit (8, 9, 10) of the distribution device (7) and/or the braking device (17) or the at least one braking unit (18, 19) protrudes beyond the braking device (17), so that the rotor (2B) extends beyond the distribution device (7) or the at least one distribution unit (8, 9, 10) in the axial and radial directions (A, R). and/or the braking device (17) or the at least one braking unit (18, 19) projects beyond the braking device (17). Axle drive device according to claim 1 or 2 - wherein the distribution device (7) has at least one distribution unit (8, 9, 10) or a first (8), a second (9) and/or a third distribution unit (10) in order to divide, interrupt and/or forward to control at least one output variable of the transmission device (3) and/or the electric machine (2) on one or more vehicle wheels, - the first and/or third distribution unit (8, 10) being designed similarly to a clutch device, so that the transmission device (3 ) and/or the electrical machine (2) can be releasably connected to one or more vehicle wheels in order to enable at least one output variable of the transmission device (3) and/or the electrical machine (2) to be further divided or interrupted to one or more vehicle wheels or power take-offs ( 32, 33) of the axle drive device (1) to regulate and/or control. Axle drive device according to one of the preceding claims, - wherein the distribution device (7) has at least one distribution unit (8, 9, 10) or a first (8), a second (9) and/or a third distribution unit (10), - wherein the first and/or third distribution unit (8, 10) comprises a lamella pack (11) with first lamella elements (12) and second lamella elements (13) and an actuating actuator (14) which moves the lamella elements (12, 13) together in order to create torque transmission. Axle drive device according to one of the preceding claims, - wherein the first, second and/or third distribution unit (8, 9, 10) has at least one input part (15A, 15B, 15C), - wherein on the at least one input part (15A, 15C) of the first and/or third distribution unit (8, 10) first lamella elements (12) of a lamella pack (11) of the first and/or third distribution unit (8, 10) are non-rotatably inside or outside are arranged - wherein the first, second and/or third distribution unit (8, 9, 10) has at least one outlet part (16A, 16B, 16C), - wherein on the at least one output part (16A, 16C) of the first and/or third distribution unit (8, 10) second lamella elements (13) of a lamella pack (11) of the first and/or third distribution unit (8, 10) are rotatably fixed on the outside or inside are arranged, and/or - wherein the at least one output part (16B) of the second distribution unit (9) comprises sun gear elements (28, 29). Axle drive device according to one of the preceding claims, - wherein the axle drive device (1) has a second distribution unit (9) of the distribution device (7) for compensating for at least one output variable of the transmission device (3), such as speed and/or torque, - the second distribution unit (8) is arranged outside the rotor (2B) of the electrical machine (2), - the second distribution unit (8) being designed as a spur gear, and - Wherein the input part (15B) is designed as a differential carrier. Axle drive device according to claim 6 , - the second distribution unit (8) having a first and a second sun gear element (28, 29) as an output part (16B), each connectable to a vehicle wheel, - the second distribution unit (8) having a plurality of pairs of first and second planetary elements (30, 31), the first planetary elements (30) meshing with the first sun gear element (28) and with the second planetary elements (31), and the second planetary elements (31) meshing with the second sun gear element (29) and with the first planetary elements (30) are engaged, - the first sun wheel element (28) being non-rotatably connected to a first and/or second output (32, 33) of the axle drive device (1). Axle drive device according to one of the preceding claims, - wherein the braking device (17) has at least one braking unit (18, 19) or a first and/or second braking unit (18, 19), - wherein the first and/or second brake unit (18, 19) is designed similarly to a clutch device, so that one or more vehicle wheels or output drives (32, 33) of the axle drive device (1) can be slowed down in a controlled manner by means of a braking torque generated by it. Axle drive device according to one of the preceding claims, - wherein the braking device (17) has at least one braking unit (18, 19) or a first and/or second braking unit (18, 19), - wherein the first and/or second brake unit (18, 19) each comprise a fixed brake part (20A, 20B) or a common, fixed brake part (20), and wherein the first and/or second brake unit (18, 19) comprises a rotating brake part (21A, 21B), - The fixed brake part (20A, 20B) being non-rotatably connected to the housing (6) of the axle drive device (1). Axle drive device according to claim 8 or 9 , - wherein the first and/or second brake unit (18, 19) comprises a disk set (22) with first disk elements (23) and second disk elements (24) and an actuating actuator (25) which moves the disk elements (23, 24) together, to convert rotational energy into thermal energy, - the first lamellar elements (23) being arranged on the inside or outside of the stationary braking part (20A, 20B) in a rotationally fixed manner, - the second lamellar elements (24) being arranged on the inside or outside of the rotating braking part (21A, 21B ) or are arranged in a rotationally fixed manner on the rotor (2B).

Images