Electric drive system for a motor vehicle, in particular for an automobile

Electric drive system (10) for a motor vehicle, showing:

• a first electric machine (20) with a first rotor (24), via which torques can be provided by the first electric machine (20),
• a differential (38) with a differential gear (40), via which the torques can be introduced into the differential (38),
• a gear unit (58) which is provided in addition to the differential (38) and which is arranged in the torque flow between the first rotor (24) and the differential gear (40) with respect to a torque flow emanating from the first electric machine (20), via which the torques can be transmitted from the first rotor (24) to the differential gear (40) and can be introduced into the differential (38) via the differential gear (40), and a first input shaft (60), an output shaft (68) arranged parallel and axially offset to the first input shaft (60) and at least two gear wheels (72, 74) arranged coaxially to the first input shaft, (60), namely a first gear wheel (72) and a second gear wheel (74), and two gear wheels (76, 78) arranged coaxially to the output shaft (68), namely a third gear wheel (76) and a fourth gear wheel (78),
• a drive housing (84) formed in one piece in which the first electric machine (20) and the gear unit (58) are each at least partially accommodated,
• an axle housing (86) in which the differential (38) is accommodated, wherein
• an axis of rotation (32) of the first rotor (24), an axis of rotation (70) of the output shaft (68) and an axis of rotation (42) of the differential gear (40) a arranged parallel and axially offset to one another,
• the drive housing (84) the axle housing (86) are directly connected to one another by means of a first flange joint (88),
• a first flange, face surface (F1) of the first flange joint (88) is arranged parallel to the axis of rotation (42) of the differential gear (40),
• characterized in that:
• the first rotor (24) and the gear wheels (72, 74, 76, 78) of the gear unit (58) are arranged completely within the drive housing (84),
• a first cover (94) a second cover (96) are provided,
• the first cover (94) and the drive housing (84) are directly connected to one another by means of a second flange joint (98),
• the second cover (96) and the drive housing (84) are directly connected to each other by means of a third flange joint (104), and
• a second flange face surface (F2) of the second flange joint (98) and a third flange face surface (F3) of the third flange joint (104) are arranged perpendicular to the axis of rotation (42) of the differential gear (40),
• characterized in that:
• the gear unit (58) has a countershaft (110) arranged parallel and axially offset to the first input shaft (60) and parallel and axially offset to the output shaft (68), wherein a first switchable spur gear pair (117) is provided, which comprises the first gear wheel (72) and a first countershaft gear wheel (114) arranged coaxially to the countershaft (110), and wherein a second switchable spur gear pair (118) is provided, which comprises the second gear wheel (74) and a second countershaft gear wheel (116) arranged coaxially to the countershaft (110).