Patent ID: 7424924

Claim:
A hybrid electric vehicle powertrain for an automotive vehicle comprising an engine, a first traction wheel and axle assembly, a second traction wheel and axle assembly, a power transmission drivably connected to the engine and a torque transfer case with a transfer case torque input shaft connected drivably to a transmission torque output shaft, the powertrain comprising: an electric motor-generator; a first transfer case torque output shaft connected drivably to the first traction wheel and axle assembly; the electric motor-generator and the first transfer case torque output shaft being assembled on a common first axis; a second transfer case torque output shaft disposed on a second axis that is offset from the first axis; the second traction wheel and axle assembly being drivably connected to the second transfer case torque output shaft; a torque cross-drive mechanism drivably connecting the motor-generator to the second transfer case torque output shaft; the torque cross-drive mechanism comprising a torque output gear drivably connected to the second transfer case torque output shaft, at least one torque input gear drivably connected to the motor-generator and at least one idler gear drivably connecting the one torque input and torque output gears; the one torque input gear of the cross-drive mechanism being journalled on the first axis; the torque output gear of the cross-drive mechanism being journalled on the second axis; and the at least one idler gear being journalled on a third axis that is offset from the first and second axes.