US 11,993,153 B2
Hybrid drive assembly for a motor vehicle
Benjamin Kluge, Munich (DE); Sebastian Liebert, Unterfoehring (DE); Ulrich Ohnemus, Hattenhofen (DE); and Fritz Pobitzer, Roehrmoos (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 18/027,287
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed Aug. 26, 2021, PCT No. PCT/EP2021/073610
§ 371(c)(1), (2) Date Mar. 20, 2023,
PCT Pub. No. WO2022/063515, PCT Pub. Date Mar. 31, 2022.
Claims priority of application No. 10 2020 125 276.5 (DE), filed on Sep. 28, 2020.
Prior Publication US 2023/0356583 A1, Nov. 9, 2023
Int. Cl. B60K 6/365 (2007.10); B60K 6/38 (2007.10); B60K 6/48 (2007.10); B60K 6/547 (2007.10)
CPC B60K 6/48 (2013.01) [B60K 6/365 (2013.01); B60K 6/38 (2013.01); B60K 6/547 (2013.01); B60K 2006/4816 (2013.01); B60K 2006/4833 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A hybrid drive assembly comprising:
an internal combustion engine as a first drive machine, which has a first drive shaft;
an electromechanical energy converter as a second drive machine, which has a second drive shaft;
a switchable traction gear device comprising:
a first gear input shaft configured to be selectively connected to the first drive shaft;
a second gear input shaft configured to be connected to the second drive shaft; and
a gear output shaft that is configured to discharge drive power from at least one of the first drive machine or the second drive machine to a remaining motor vehicle drive train,
wherein the traction gear device is in the form of an epicyclic gear device and has an input planetary gear wheel set, wherein the input planetary gear wheel set has at least three gear shafts, of which one is in the form of an input sun gear shaft and one is in the form of an input ring gear shaft and one is in the form of an input planetary gear carrier shaft,
wherein a first one of the three gear shafts of the input planetary gear wheel set is the first gear input shaft, and wherein in a torque transmission direction from the first drive shaft to the first gear input shaft, a first torsional vibration reduction device is arranged therebetween,
wherein another of the three gear shafts of the input planetary gear wheel set is the second gear input shaft, and wherein, in a torque transmission direction from the second drive shaft to the second gear input shaft, a second torsional vibration reduction device is arranged therebetween, and
wherein the second drive shaft is connected with an electric machine gear stage to the second gear input shaft so that the second drive shaft is arranged axially parallel and radially spaced apart with respect to the second gear input shaft.