US 12,292,101 B2
Transmission device for a motor vehicle, drive axle, and motor vehicle
Karsten Fabian, Oberschleissheim (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 18/682,475
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed Aug. 24, 2022, PCT No. PCT/EP2022/073531
§ 371(c)(1), (2) Date Feb. 9, 2024,
PCT Pub. No. WO2023/046396, PCT Pub. Date Mar. 30, 2023.
Claims priority of application No. 10 2021 124 834.5 (DE), filed on Sep. 27, 2021.
Prior Publication US 2024/0344600 A1, Oct. 17, 2024
Int. Cl. B60K 7/00 (2006.01); B60K 1/02 (2006.01); B60K 17/08 (2006.01); B60K 17/16 (2006.01); F16H 37/08 (2006.01)
CPC F16H 37/0806 (2013.01) [B60K 1/02 (2013.01); B60K 17/08 (2013.01); B60K 17/16 (2013.01); B60K 7/0007 (2013.01); B60K 2007/0061 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A motor vehicle drive axle comprising a first drive module and a second drive module, each drive module comprising a transmission device and a drive machine,
wherein each transmission device comprises:
a transmission drive spur gear, which is connected to an output element of the drive machine for conjoint rotation;
a central spur gear, which comprises an external toothed ring that meshes with the transmission drive spur gear, as a result of which a first transmission stage of the transmission device is formed, wherein the central spur gear has an internal outer toothed ring; and,
a planetary transmission gear set, which forms a second transmission stage of the transmission device and the sun gear toothed ring of which is formed by the internal outer toothed ring of the central spur gear, wherein a planetary gear set meshes with the sun gear toothed ring and with a ring gear toothed ring, fixed on a housing of the transmission device, of the planetary transmission gear set, as a result of which a planetary gear set carrier of the planetary transmission gear set forms an output element of the transmission device;
wherein the external toothed ring of the central spur gear, the internal outer toothed ring of the central spur gear, and the planetary gear set carrier are radially aligned; and,
wherein an output element of the first drive module and an output element of the second drive module are arranged along a common axis of rotation, the output element of the drive machine of the first drive module is arranged on a first side of the common axis of rotation, the output element of the drive machine of the second drive module is arranged on a second side of the common axis opposite the first side, and, at least a portion of the drive machine of the first drive module overlaps with a portion of the drive machine of the second drive module in the direction of motor vehicle travel.