METHOD FOR OPERATING A HYBRID DOUBLE COUPLING TRANSMISSION DRIVE TRAIN

Method for operating a hybridized dual-clutch transmission drive train (10), which comprises an internal combustion engine (VM), a dual-clutch arrangement with a first and a second friction clutch (30, 20), a first partial transmission (TG1), a second partial transmission (TG2), and an electric machine (EM), which is connected to or connectable to the input of partial transmission (TG2), wherein in a hybrid boost operation initially drive power from the electric machine (EM) is transmitted via the partial transmission (TG2), and the friction clutch (20) assigned to the partial transmission (TG2) is opened and gear stage 2 is engaged, and drive power from the internal combustion engine (VM) is transmitted via the partial transmission (TG1), and the friction clutch (30) arranged in the partial transmission is closed and gear stage 3 is engaged, and upon further acceleration the method comprises the drivingly effective relocation of the electric machine (EM) into the partial transmission TG1, wherein both drive machines are operated via the partial transmission TG1 in gear stage 3 until shortly before reaching the limit rotational speed (nVM) of the internal combustion engine (VM), the electric machine (EM) is switched to gear stage 4, and the internal combustion engine is switched from gear stage 3 to gear stage 4 at a short time interval thereto.