Electrified multiple speed ratio transmission

A vehicle comprising:

• a power-source configured to generate a power-source torque;
• an electrified multiple speed ratio transmission mounted externally to the power-source and configured to transmit the power-source torque;
• and
• a road wheel configured to receive the power-source torque transmitted by the electrified multiple speed ratio transmission;
• wherein the electrified multiple speed ratio transmission includes:
• an input member configured to receive the power-source torque and rotate about a first axis;
• a transmission housing configured to retain and support the torque transfer system and defining an aperture located radially relative to the first axis;
• a torque transfer system configured to receive the power-source torque from the input member and select an input-to-output speed ratio of the transmission;
• an electric motor mounted externally to the transmission housing and arranged on a second axis that is parallel to the first axis, wherein the electric motor is operatively connected to the torque transfer system and configured to apply an electric motor torque input to the torque transfer system through the aperture;
• an output member operatively connected to the torque transfer system and configured to receive the power-source torque and the electric motor torque input flowing through the torque transfer system and output a sum of the power-source torque and the electric motor torque input;
• and
• a differential assembly operatively connected to the output member to thereby transmit the sum of the power-source torque and the electric motor torque input to drive the road wheel.