# US 11,111,994 B2 · Assembly set for transmission devices for motor vehicles

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- Number: US 11,111,994 B2
- Document ID: US11111994B2
- Status: Granted
- Kind: B2
- Application number: 16/641,348
- Filed: 2018-08-17
- Published: 2020-07-30
- Granted: 2021-09-07
- Earliest claimed: 2017-08-25
- Assignees: Audi AG
- Applicants: Audi AG
- Inventors: Carsten Trautmann; Christian Meixner; Christian Wirth; Jürgen Tschullik
- Web page: https://patentgrep.com/patent/US11111994B2

## CPC

- B60K 6/48: Parallel type
- F16H 48/11: having intermeshing planet gears
- B60K 6/365: with the gears having orbital motion
- F16H 48/36: characterised by intentionally generating speed difference between outputs
- B60K 2006/4808: {Electric machine connected or connectable to gearbox output shaft}
- B60K 2006/4841: {the gear provides shifting between multiple ratios}
- B60Y 2400/804: Torque vectoring arrangements
- F16H 2048/104: {characterised by two ring gears}
- F16H 2048/106: {characterised by two sun gears}
- F16H 2048/364: {using electric or hydraulic motors}
- F16H 2200/2015: with five sets of orbital gears
- F16H 2200/2035: with two engaging means
- F16H 2200/2094: using positive clutches, e.g. dog clutches
- F16H 2200/2097: comprising an orbital gear set member permanently connected to the housing, e.g. a sun wheel permanently connected to the housing
- Y02T 10/62: Hybrid vehicles
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- F16H: GEARING
- B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

An assembly set for transmission devices for motor vehicles. Each of the transmission devices has an input shaft which can be operatively connected to a drive device of the motor vehicle, as well as a first output shaft, and a second output shaft, and has a spur gear differential transmission designed as a planetary transmission, via which the input shaft and an intermediate shaft that is coupled or can be coupled to an electric machine arranged coaxially to the input shaft are coupled to the first output shaft and the second output shaft. The electric machine is coupled to the input shaft in a first shift position of a shift device and to the intermediate shaft in a second shift position of the shift device.

## Claims

### Claim 1

An assembly set for transmission devices for motor vehicles, wherein each of the transmission devices comprise:
an input shaft which can be operatively connected to a drive device of the motor vehicle, a first output shaft, and a second output shaft, and
a spur gear differential transmission designed as a planetary transmission, whereby the input shaft and a rotatable intermediate shaft, that are coupled or can be coupled to an electric machine arranged coaxially to the input shaft, are coupled to the first output shaft and to the second output shaft,
wherein the electric machine is coupled to the input shaft when a shift device is in a first position and to the rotatable intermediate shaft when the shift device is in a second position,
wherein the electric machine of each of the transmission devices is coupled to a first shifting shaft of the shift device and to a second shifting shaft of the shift device via a transmission gearing,
wherein the transmission gearing has at least two planetary gear sets that are coupled together,
wherein the first output shaft and the second output shaft are each coupled to or can be coupled to a respective sub-axle of a wheel axle of the motor vehicle with transmission ratios which differ among various transmission devices,
wherein the two planetary gear sets for at least one of the transmission ratios has the same stationary gear transmission ratio in terms of magnitude.

### Claim 2 (depends on 1)

The assembly set according to claim 1, wherein each of the two planetary gear sets has a sun gear, a planetary gear carrier with a planetary gear rotatably mounted thereon, and a ring gear as transmission elements, and
wherein various transmission elements of the planetary gear sets are connected to one another for coupling, for at least two of the transmission ratios.

### Claim 3 (depends on 2)

The assembly set according to claim 2, wherein, for each of the transmission ratios, the planetary gear carrier of a first of the two planetary gear sets is coupled to the sun gear of a second of the two planetary gear sets and to the second shifting shaft.

### Claim 4 (depends on 2)

The assembly set according to claim 2, wherein the electric machine is connected to the transmission gearing via the sun gear of a first of the two planetary gear sets for each of the transmission ratios.

### Claim 5 (depends on 2)

The assembly set according to claim 2, wherein the ring gear of a first of the two planetary gear sets is connected to the planetary gear carrier of a second of the two planetary gear sets for a first of the transmission ratios and/or a second of the transmission ratios.

### Claim 6 (depends on 5)

The assembly set according to claim 5, wherein the first shifting shaft is coupled to the ring gear of the first planetary gear set and to the planetary gear carrier of the second planetary gear set for the first transmission ratio and/or the second transmission ratio.

### Claim 7 (depends on 5)

The assembly set according to claim 5, wherein for a third of the transmission ratios, the first shifting shaft is coupled to the planetary gear carrier of the first planetary gear set.

### Claim 8 (depends on 7)

The assembly set according to claim 7, wherein the standard transmission ratios are the same for the second transmission ratio and the third transmission ratio in terms of magnitude and that they differ in terms of magnitude for the first transmission ratio.

### Claim 9 (depends on 2)

The assembly set according to claim 2, wherein at least one of the ring gears of the two planetary gear sets is rigidly connected to a transmission housing for each of the transmission ratios.

### Claim 10 (depends on 7)

The assembly set according to claim 7, wherein the ring gear of the second planetary gear set is rigidly connected to a transmission housing for the first transmission ratio and/or the second transmission ratio, and the ring gears of both planetary gear sets are rigidly connected to the transmission housing for the third transmission ratio.

### Claim 11 (depends on 2)

The assembly set according to claim 2, wherein, for each of the transmission ratios, the sun gear of a second of the two planetary gear sets is coupled to or can be coupled directly to either the input shaft or the rotatable intermediate shaft via the shift device.