Hybrid transmission unit having two planetary wheel sets and a plurality of switching devices; and motor vehile

A transmission unit for a hybrid motor vehicle, the transmission unit comprising:

• a planetary gearing, the planetary gearing including a first planetary wheel set and a second planetary wheel set;
• an electric machine coupled with a component part of the planetary gearing;
• and
• at least two switching devices including a first switching device and a second switching device, each of the at least two switching devices forming a brake or a clutch and each being movable between an activated position and a deactivated position, the switching devices being operatively installed for switching various transmission ratios between at least one of an input, which can be coupled with an internal combustion engine, and an output, and between the electric machine and the output, the at least two switching devices being arranged and configured to:
• achieve a first transmission ratio in a drive state with the first switching device in the activated position and the second switching device in the deactivated position,
• achieve a second transmission ratio in the drive state with the first switching device in the deactivated position and the second switching device in the activated position,
• achieve a stationary state of charge in which drive power from the internal combustion engine is supplied to the electric machine operating as a generator with the first switching device in the deactivated position and the second switching device in the activated position, and
• achieve a reverse driving state with the first switching device in the activated position and the second switching device in the deactivated position.