Method for carrying out launch control starting operations
AssigneesVolkswagen Aktiengesellschaft, BorgWarner Inc.
InventorsMarko Marchlewski, Danny Grosser
Life of this patent
Estimating the term…
Abstract
The invention relates to a method for carrying out a starting operation of a motor vehicle having a gear train that includes a dual clutch transmission with a first clutch that carries the odd-numbered gears, and a second clutch that carries the even-numbered gears, wherein the second clutch of the dual clutch transmission is used, at least in part, for preloading the gear train.
Claims7
A method for carrying out a starting operation of a motor vehicle having a gear train that includes a dual clutch transmission having a first clutch that carries the odd-numbered gears, and a second clutch that carries the even-numbered gears, the method comprising:
- using the second clutch of the dual clutch transmission, and engaging one of the even-numbered gears for preloading the gear train before the motor vehicle begins to move,
- wherein the preloading of the gear train is based entirely on the second clutch of the dual clutch transmission, and
- wherein the preloading of the dual clutch transmission takes place by operating the second clutch with slip and by transmitting a preload torque to the engaged one of the even-numbered gears during operation with slip.
Dependencies are inferred from the claim text.