Electric axle drive device for a motor vehicle, in particular for a commercial vehicle, and motor vehicle with at least one such electric axle drive device

摘要

An electric axle drive device (10) for a motor vehicle (12), comprising at least one first electrical machine (34) which has a stator (36) and a rotor (38) which is pivotable about a machine axis of rotation (42) relative to the stator (36). is rotatable, with one of the first electric machine (34) drivable transmission (44), which exactly two planetary gear stages (46, 72), namely a first planetary gear stage (46) which can be driven by the first electric machine (34) and a second planetary gear stage (72) which can be driven by the electric machine (34), - And exactly two spur gear stages (48, 90), namely one of the first electric machine (34) drivable first spur gear stage (48) having a first spur gear (60) and with the first spur gear (60) meshing second spur gear (62) , and a second spur gear stage (90), and with at least one drive wheel (14) of the motor vehicle (12) which can be driven about the wheel rotational axis (20) running parallel to the machine rotational axis (42) and can be driven by the first electric machine (34) via the gear mechanism (44), wherein a via the gear (44) of the first electric machine (34) drivable axle drive (64) is provided, via which the drive wheel (14) of the first electric machine (34) is drivable; in which - the first electric machine (34) is at least partially disposed on a first side (68) of the longitudinal center plane (66) with respect to a longitudinal center plane (66) of the motor vehicle (12) spanned by the vehicle vertical direction (32) and the vehicle longitudinal direction (30); and - The first spur gear stage (48) on one of the first side (68) in the vehicle transverse direction (28) opposite the second side (70) of the longitudinal center plane (66) is arranged, characterized in that based on a torque flow from the first electric machine (34) to the drive wheel (14), the first planetary gear stage (46) after the first electric machine (34) and before the drive wheel (14), the first spur gear stage (48) after first planetary gear stage (46) and before the drive wheel (14), the second planetary gear stage (72) after the first spur gear stage (48) and before the drive wheel (14) and the second spur gear stage (90) after the second planetary gear stage (72) and before Drive wheel (14) is arranged, - A brake element (82) is provided, by means of which a transmission element of the second planetary gear stage (72) on a housing (58) of the transmission (44) can be fixed, wherein the brake element (82) in the axial direction of the second planetary gear stage (72) relative has a ring gear (76) of the second planetary gear stage (72) displaceable relative to the housing (58), - A second electric machine (110) and another, of the second electric machine (110) drivable and with the second spur gear (62) meshing spur gear (112) are provided, wherein the second electric machine (110) with respect to a through the vehicle transverse direction (28) and the vehicle longitudinal direction (30) spanned further level of the motor vehicle is arranged on a third side of the further plane, wherein the first electric machine (34) is arranged on a third side opposite in the vehicle vertical direction fourth side of the further plane and the second electric machine (110) along a direction perpendicular to the vehicle transverse direction (28) extending direction with the first electric machine (34) is aligned.