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1. (WO2018083046) METHOD FOR OPERATING A MULTI-CLUTCH TRANSMISSION, MULTI-CLUTCH TRANSMISSION FOR A MOTOR VEHICLE, AND MOTOR VEHICLE HAVING A MULTI-CLUTCH TRANSMISSION

Pub. No.:    WO/2018/083046    International Application No.:    PCT/EP2017/077680
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Sat Oct 28 01:59:59 CEST 2017
IPC: F16H 59/46
F16H 61/12
F16H 61/688
Applicants: AUDI AG
Inventors: GUNDLACH, Lutz
Title: METHOD FOR OPERATING A MULTI-CLUTCH TRANSMISSION, MULTI-CLUTCH TRANSMISSION FOR A MOTOR VEHICLE, AND MOTOR VEHICLE HAVING A MULTI-CLUTCH TRANSMISSION
Abstract:
The invention relates to a method for operating a multi-clutch transmission (10) for a motor vehicle (100), having at least the following steps: a) closing a first clutch (12) of the multi-clutch transmission (10), in order to transfer an input torque (M_k1) between a drive machine of the motor vehicle (100) and at least one first sub-transmission (20) of the multi-clutch transmission (10); b) applying a drag torque (M_k2) to a second sub-transmission (40) of the multi-clutch transmission, which is coupled to the first sub-transmission (20), via a second clutch (14) of the multi-clutch transmission (10); c) detecting a clutch slip of the second clutch (14), which is dependent on the drag torque (M_k2); and d) determining a current gear selection of the multi-clutch transmission (10) by evaluating the clutch slip. The invention further relates to a multi-clutch transmission (10) and to a motor vehicle (100) having a multi-clutch transmission (10).