Internal combustion engine decoupling device of a PHEV transmission unit

A drive machine coupling apparatus for a motor vehicle with a hybrid drive, comprising:

• an input shaft, which is configured to receive drive power provided by a first drive machine;
• an output shaft, which is configured to output the drive power;
• and
• a first coupling device having a first coupling input side fixedly coupled for co-rotation with the input shaft, the first coupling device, in the direction of torque transmission from the input shaft to the output shaft, is arranged between the input and output shafts and by which torque can be selectively transmitted from the input shaft to the output shaft, the first coupling device being couplable by a first coupling output side directly to the output shaft, wherein in relation to the torque transmission from the input shaft to the output shaft, a second coupling device having a second coupling input side fixedly coupled for co-rotation with the input shaft, the second coupling device being arranged between the input and output shafts having a second coupling output side which is directly coupled to the output shaft, by way of the second coupling device, torque is selectively transmittable from the input shaft to the output shaft, and the second coupling device is, in relation to the torque transmission, arranged in parallel with respect to the first coupling device;
• wherein the output shaft is couplable to a second drive machine, and the second drive machine is formed as an electric drive machine with a rotor and a stator;
• and
• wherein a planetary gear set is arranged in the direction of the torque transmission from the second drive machine to the output shaft, the planetary gear set has a planet gear carrier which is couplable to the output shaft, on the planet gear carrier, there is rotatably mounted at least one planet gear with which, for power transmission,
• an internal gear or a sun gear of the planetary gear set, or both, are placeable in contact, and the internal gear is connectable, for power transmission, to the rotor.