Patent ID: 8088030

Claim:
An electrically-variable transmission comprising: an input member having an axis of rotation and an output member; a transmission casing; first and second motor modules within the transmission casing operatively connecting the input member and the output member and coaxially arranged about the axis of rotation; wherein each motor module includes a respective motor/generator with a rotor rotatable about the axis of rotation and defining a rotor cavity; a planetary gear set packaged within the cavity and having a first, a second, and a third member; a rotor hub supporting the rotor and having first and second annular end portions extending from the rotor hub toward the axis of rotation and an annular midportion that is between the first and second annular end portions and is connected for common rotation with the first member of the planetary gear set; and a selectively engagable rotating-type clutch packaged within the cavity and connected with the rotor hub; and wherein the motor/generator, planetary gear set, rotor hub, and rotating-type clutch of each respective motor module are arranged substantially identically with respect to one another in each motor module such that the motor modules are substantially identical.