Power split gearbox for a motor vehicle

A power split gearbox for a motor vehicle comprising:

• at least one drive shaft, which is connectible to an internal combustion engine for inputting torque;
• a first branch, which includes a planetary gear mechanism arrangement with at least two sun gears, an internal gear and a spider shaft, on which dual planetary gears are disposed, which mesh with the sun gears and the internal gear, wherein at least one of the sun gears is coupled to the drive shaft;
• an infinitely variable second branch, which can at least partially be connected to the first branch via the planetary gear mechanism arrangement and includes at least a first and a second adjustable hydraulic and/or electrical rotational energy converter, which can be energetically coupled to each other and are each operable in both directions as a motor or as a pump or a generator, respectively;
• at least one output shaft, which can be coupled to the drive shaft via the first branch and the second branch;
• a first reversing stage for changing between at least one first forward driving range and at least one first reverse driving range is provided between the drive shaft and the output shaft, wherein the first reversing stage is adapted to reverse a rotational direction of the output of the planetary gear mechanism arrangement relative to a rotational direction of the second energy converter, wherein the second energy converter is coupled to the output shaft via a first clutch device;
• and
• a second reversing stage comprising a second clutch device and a third clutch device and disposed between the second energy converter and the output of the planetary gear mechanism arrangement.