Process for controlling a twin clutch
AssigneeLuK Lamellen und Kupplungsbau Beteiligungs KG
InventorsGerd Jaeggle, Juergen Eich
Life of this patent
Estimating the term…
Abstract
The invention relates to a process for controlling a twin clutch transmission with two partial drive trains with respectively a friction clutch interposed between an internal combustion engine and the partial drive train. If the transmission capacity of a friction clutch falls below the engine torque, engine intervention takes place. If the clutch temperature rises further above a default value, an emergency operation is initiated, in which the affected partial drive train is deactivated by opening the affected friction clutch, a preselection strategy used in the other partial drive train is changed and the other partial drive train is activated.
Claims8
A method for controlling a twin clutch transmission with two partial drive trains, which respectively feature multiple executable gearshifts, and in which one partial drive train is operated respectively with one gear actively engaged and in which, in another partial drive train according to a preselection strategy, a gear is engaged for a subsequent driving operation, in which a friction clutch is assigned respectively to one partial drive train, which is actuated by an actuator activated travel- or force-dependently by a control device and, upon attaining or exceeding a default threshold, transmits maximum clutch torque, the method comprising:
- if the maximum clutch torque of a friction clutch falls short of a predefined threshold value and once the clutch temperature assigned to this friction clutch is exceeded, an emergency operation is initiated, in which the partial drive train corresponding to the affected clutch is deactivated by opening the friction clutch, changing the preselection strategy, and activating the other partial drive train.
Dependencies are inferred from the claim text.