US 12,404,920 B2
Drive device for a car, in particular for a passenger car
Goran Ogrizovic, Nuertingen (DE)
Assigned to Mercedes-Benz Group AG, Stuttgart (DE)
Appl. No. 18/722,191
Filed by Mercedes-Benz Group AG, Stuttgart (DE)
PCT Filed Dec. 19, 2022, PCT No. PCT/EP2022/086745
§ 371(c)(1), (2) Date Jun. 20, 2024,
PCT Pub. No. WO2023/126237, PCT Pub. Date Jul. 6, 2023.
Claims priority of application No. 10 2022 000 018.0 (DE), filed on Jan. 3, 2022.
Prior Publication US 2025/0052306 A1, Feb. 13, 2025
Int. Cl. F16H 37/08 (2006.01); B60K 1/02 (2006.01); B60K 17/16 (2006.01); B60K 17/26 (2006.01)
CPC F16H 37/0806 (2013.01) [B60K 1/02 (2013.01); B60K 17/165 (2013.01); B60K 17/26 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A drive device (10) for a car, comprising:
a first output shaft (12) via which a first vehicle wheel (14) of a vehicle axis of the car is drivable;
a second output shaft (16) disposed coaxially to the first output shaft (12) via which a second vehicle wheel (18) of the vehicle axis of the car is drivable;
a differential transmission (20) via which the first output shaft (12) and the second output shaft (16) are drivable;
three axial flux machines (32a-c) disposed coaxially to one another and coaxially to the first output shaft (12) and the second output shaft (16), wherein the three axial flux machines (32a-c) are comprised by:
a first axial flux machine (32a) via which the first output shaft (12) is drivable by bypassing the differential transmission (20);
a second axial flux machine (32b) via which the second output shaft (16) is drivable by bypassing the differential transmission (20); and
a third axial flux machine (32c) disposed between the first axial flux machine (32a) and the second axial flux machine (32b) in an axial direction of the three axial flux machines (32a-c) via which the first output shaft (12) and the second output shaft (16) are drivable via the differential transmission (20);
a first switching element (42) formed as a first freewheel via which the first output shaft (12) is drivable by the first axial flux machine (32a) by bypassing the differential transmission (20); and
a second switching element (44) formed as a second freewheel (44) via which the second output shaft (16) is drivable by the second axial flux machine (32b) by bypassing the differential transmission (20).