Transmission for an electrically driveable axle of a motor vehicle

A transmission for transmitting a rotational driving force to an electrically driveable axle of a motor vehicle, the transmission comprising:

• a hollow drive input shaft having opposite open first and second ends and radially internal toothing between the ends, the hollow drive input shaft further having a radially external gearwheel formed with external toothing thereon at a position radially outward from the radially internal toothing;
• an intermediate shaft having radially external toothing engaged with the radially external gearwheel of the hollow drive input shaft for transmitting rotation of the hollow drive input shaft to the axle of the motor vehicle;
• a housing sealingly engaged with the hollow drive input shaft at positions between the external toothing and the first and second ends of the hollow drive input shaft;
• first and second driving force inputs each of which is selectively engageable with the hollow drive input shaft for delivering a rotatable driving force to the electrically drivable axle of the motor vehicle, wherein:
• the first driving force input comprises:
• a first electric machine, a first coupling shaft having a first end coupled to the first electric machine, a second end within the hollow drive input shaft and external toothing engaged with the internal toothing of the hollow drive input shaft to deliver a rotational driving force from the first electric machine, and a cover mounted to the housing at a position opposed to the second end of the hollow drive input shaft and to the second end of the first coupling shaft;
• and
• the second driving force input comprises the first electric machine, a second electric machine, a second coupling shaft having a first end coupled to the first electric machine, a second end external of the hollow drive input shaft and coupled to the second electric machine, and external toothing engaged with the internal toothing of the hollow drive input shaft to deliver a rotational driving force from the first and second electric machines, whereby the transmission is reconfigurable for delivering the rotatable driving force only from the first electric machine or from the first and second electric machines.