Electrically Variable Transmissions for Off-Road Vehicles

An off-road vehicle comprising:

• an internal combustion engine with a crankshaft;
• a compound planetary gear assembly having first and second planetary gear sets, the first planetary gear set including a first ring gear, a first sun gear and a first planet carrier, the second planetary gear set including a second ring gear, a second sun gear and a second planet carrier, the first and second planet carriers coupled together for common rotation, the first ring gear in torque transferring communication with the crankshaft, the compound planetary gear assembly having a first rotational axis;
• a first motor generator having a first input gear in torque transferring communication with the first sun gear, the first input gear having a second rotational axis;
• a second motor generator having a second input gear in torque transferring communication with the second sun gear, the second input gear having a third rotational axis;
• an output gear coupled to the first and second planet carriers for common rotation therewith;
• and
• at least one ground-engaging member in torque transferring communication with the output gear, the at least one ground-engaging member configured to provide ground propulsion for the vehicle responsive to torque from the output gear;
• wherein, the first, second and third rotational axes are parallel rotational axes.