Drive assembly for an electric drive

drive assembly for a motor vehicle, having a multi-step transmission and a differential drive,

• wherein the multi-step transmission comprises a rotatingly drivable driveshaft, an intermediate driveshaft arranged parallel to the rotatingly drivable driveshaft, at least a first transmission stage and a second transmission stage for transmitting torque from the rotatingly drivable driveshaft to the intermediate driveshaft with different transmission ratios, as well as a shift unit which is arranged coaxially relative to the rotatingly drivable driveshaft;
• wherein the first transmission stage comprises a first drive gear rotatably supported on the rotatingly drivable driveshaft and a first intermediate gear connected to the intermediate driveshaft in a rotationally fixed manner, and wherein the second transmission stage comprises a second drive gear rotatably supported on the rotatingly drivable driveshaft, and a second intermediate gear connected to the intermediate driveshaft in a rotationally fixed manner;
• wherein the shift unit comprises an input part which is connected to the rotatingly drivable driveshaft in a rotationally fixed manner, a first output part which is connected to the first drive gear in a rotationally fixed manner, a second output part which is connected to the second drive gear in a rotationally fixed manner, and a coupler by which the input part can optionally be coupled to the first output part or to the second output part for transmitting torque;
• wherein the intermediate driveshaft comprises an output gear for transmitting torque to a differential carrier of the differential drive, wherein a rotational axis of the differential carrier extends parallel to the intermediate driveshaft;
• wherein the output gear and the shift unit are arranged axially between the at least two transmission stages;
• wherein the rotatingly drivable driveshaft comprises a longitudinal bore and a transverse bore for supplying lubricant to a seat portion of the input part;
• wherein the seat portion of the input part is connected to the rotatingly drivable driveshaft in a rotationally fixed manner with an interference fit, wherein the transverse bore is fluidically connected with the seat portion of the input part;
• wherein the first drive gear is rotationally supported on the rotatingly drivable driveshaft by a first bearing, wherein the first drive gear comprises a first sleeve projection which axially extends towards the input part, wherein a first annular gap is provided laterally adjoining the first bearing, between the first sleeve projection and the rotatingly drivable driveshaft, through which first annular gap lubricant can flow from the seat portion of the first drive gear to the shift unit;
• and
• wherein the second drive gear is rotationally supported on the rotatingly drivable driveshaft by a second bearing, wherein the second drive gear comprises a second sleeve projection which axially extends towards the input part, wherein a second annular gap is provided laterally adjoining the second bearing, between the second sleeve projection and the rotatingly drivable driveshaft, through which second annular gap lubricant can flow from the seat portion of the second drive gear to the shift unit.

A drive assembly for a motor vehicle, having a multi-step transmission and a differential drive,

• wherein the multi-step transmission comprises a rotatingly drivable driveshaft, an intermediate driveshaft arranged parallel to the rotatingly drivable driveshaft, at least a first transmission stage and a second transmission stage for transmitting torque from the rotatingly drivable driveshaft to the intermediate driveshaft with different transmission ratios, as well as a shift unit which is arranged coaxially relative to the rotatingly drivable driveshaft;
• wherein the first transmission stage comprises a first drive gear rotatably supported on the rotatingly drivable driveshaft and a first intermediate gear connected to the intermediate driveshaft in a rotationally fixed manner, and wherein the second transmission stage comprises a second drive gear rotatably supported on the rotatingly drivable driveshaft, and a second intermediate gear connected to the intermediate driveshaft in a rotationally fixed manner;
• wherein the shift unit comprises an input part which is connected to the rotatingly drivable driveshaft in a rotationally fixed manner, a first output part which is connected to the first drive gear in a rotationally fixed manner, a second output part which is connected to the second drive gear in a rotationally fixed manner, and a coupler by which the input part can optionally be coupled to the first output part or to the second output part for transmitting torque;
• wherein the intermediate driveshaft comprises an output gear for transmitting torque to a differential carrier of the differential drive, wherein a rotational axis of the differential carrier extends parallel to the intermediate driveshaft;
• wherein the output gear and the shift unit are arranged axially between the at least two transmission stages;
• wherein the rotatingly drivable driveshaft comprises a longitudinal bore and a transverse bore for supplying lubricant to a seat portion of the input part;
• wherein the seat portion of the input part is connected to the rotatingly drivable driveshaft in a rotationally fixed manner with an interference fit, wherein the transverse bore is fluidically connected with the seat portion of the input part;
• wherein the coupler is provided in the form of a sliding sleeve, which is held on the input part in a rotationally fixed manner and is axially movable relative to same by means of an actuator;
• and
• wherein the sliding sleeve is in a neutral position freely rotatable relative to the first and to the second output part, is in a first transmission position connected to the first output part in a rotationally fixed manner, and is in a second transmission position connected to the second output part in a rotationally fixed manner.