Hybrid-electric powertrain and lorry equipped with same

A hybrid-electric powertrain (10), comprising:

• an internal combustion engine (12);
• a transmission (14) with a transmission housing (16), wherein within the transmission housing (16) is disposed an input-side transmission input shaft (46), a main shaft (47), and an output-side gear set assembly (17);
• a transmission housing cover (18) disposed on an output side (19) of the transmission (14) as seen in an axial direction (11);
• an electric machine (21) with a stator (22), a rotor (24), and a rotor shaft (26) connected to the rotor (24) for conjoint rotation, wherein the electric machine (21) is connected to the transmission (14) for transmitting a torque from the electric machine (21) into the transmission (14);
• a transmission shaft (42) disposed coaxially to the rotor shaft (26) and coupled or couplable to the rotor shaft (26) with an output gear (44) which is disposed coaxially to the transmission shaft (42), wherein the output gear (44) is configured to transmit the torque from the electric machine (21) into the transmission (14);
• wherein the electric machine (21) has a connection housing (30) for connecting the electric machine (21) to the transmission housing (16) and is connected to the transmission (14) for transmitting the torque into the transmission (14);
• wherein the rotor shaft (26) of the electric machine (21) is disposed parallel to the transmission input shaft (46) and wherein, seen in the axial direction (11), the transmission input shaft (46), the main shaft (47), and the electric machine (21) are disposed in the claimed order one after the other;
• wherein the transmission input shaft (46) is formed separately from the main shaft (47) and is basically rotatable with respect to the main shaft (47) and wherein the output gear (44) is disposed in an axial region of the transmission input shaft (46) or in an axial region of an input side of the main shaft (47);
• a first shift unit (158) which is configured to couple the rotor shaft (26) to the transmission (14) in a torque-transmitting manner such that the torque is introducible from the electric machine (21) into the transmission (14) in the axial region of the transmission input shaft (46) or the axial region of the input side of the main shaft (47);
• and
• a second shift unit (160) which is configured to couple the rotor shaft (26) to the transmission (14) in a torque-transmitting manner such that the torque is transmittable from the transmission (14) to the electric machine (21) in an axial region of an output side (19) of the transmission (14);
• wherein the first shift unit (158) and the second shift unit (160) are configured in a form of a dual shift unit (162) which is disposed axially in a region of the output side (19) of the transmission (14).