Transmission-integrated electromechanical device

A transmission assembly for use in a motor vehicle, the transmission assembly comprising:

• a transmission having a case for housing components of the transmission;
• first, second, third and fourth planetary gear sets rotatably supported within the case and wherein each planetary gear set has first, second and third members;
• a transmission shaft rotatably supported within the case, the transmission shaft configured to be connected to an engine of the motor vehicle and directly connected for common rotation with the second member of the fourth planetary gear set;
• an electromechanical device disposed in the case, the electromechanical device operable to convert mechanical energy to electrical energy, and wherein the electromechanical device is operable to start an engine of the motor vehicle and the transmission shaft being operable as an input to the transmission and as an output from the transmission to the engine;
• a connecting device continuously interconnecting the electromechanical device with the transmission shaft
• an output member directly connected for common rotation with the second member of the first planetary gear set;
• a first interconnecting member continuously interconnecting the third member of the first planetary gear set with the third member of the fourth planetary gear set;
• a second interconnecting member continuously interconnecting the second member of the first planetary gear set with the third member of the third planetary gear set;
• a third interconnecting member continuously interconnecting the first member of the first planetary gear set with the second member of the second planetary gear set;
• a fourth interconnecting member continuously interconnecting the third member of the second planetary gear set with the second member of the third planetary gear set;
• a fifth interconnecting member continuously interconnecting the first member of the second planetary gear set with the second member of the fourth planetary gear set;
• six torque transmitting mechanisms each selectively engageable to interconnect at least one of the first, second, and third members with at least one other of the first, second, third members and a stationary member, and
• wherein the six torque transmitting mechanisms are selectively engageable in combinations of at least two to establish at least ten forward speed ratios and at least one reverse speed ratio between the transmission shaft and the output member, and wherein the transmission shaft is configured as an input to the transmission to supply torque from the engine to the transmission.