the same device for a drive train of a hybrid vehicle powertrain and method for operating

Device for a drive train of a hybrid vehicle with a sun gear elements (8), ring gear (9) and web (10) having planetary gear (6); with a manual transmission (2), wherein a transmission input shaft (5) of the gearbox (2) is coupled firmly to the web (10) of the planetary gear (6); with an electric machine (3), which is part of a hybrid drive system, wherein the electrical machine (3) (8) of the planetary gear (6) is fixedly coupled to the sun gear; with a positive switching element (7), via which in a first closed switching position (B) the sun gear (8) and the ring gear (9) of the planetary gear (6) to provide a block orbit for the planetary gear (6) are coupled to each other, and which in the open position, the sun gear (8) and the ring gear (9) of the planetary gear (6) from each other. The ring gear (9) of the planetary gear (6) is fixedly coupled to a shaft (14) is fixedly connected to the combustion engine (4) of the hybrid drive. In a second closed switching position (A) of the positive switching element (7), via which in the first closed operating position (B) the sun gear (8) and the ring gear (9) of the planetary gear (6) are coupled to each other, the ring gear (9 ) and thus the shaft (14) to which the internal combustion engine (4) is firmly connected, on the housing side connectable. In addition to the electrical machine (3) to the sun gear (8) of the planetary gear (6) coupled to a retarder (12) such that a Retarderrotor (12b) fixed together with a rotor (3b) of the electric machine (3) to the sun gear (8) of the planetary gear (6) is coupled, and that a Retarderstator (12a) on the housing side is firmly connected.