Method for shifting a twin-clutch transmission and twin-clutch transmission arrangement
First Claim
1. A method for shifting a twin-clutch transmission having first and second transmission input shafts and a transmission output shaft, each input shaft having an associated friction clutch, respectively, in which the first clutch initially transmits engine torque in a state of static friction and the second clutch is open and in which the gear selected to be engaged after shifting is also on the first transmission input shaft, comprising:
- engaging an auxiliary gear on the second transmission input shaft having a transmission ratio which is higher than that both of the selected gear and the original gear to produce a filler torque during shifting.
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Accused Products
Abstract
A twin-clutch transmission having the driving gear wheels of adjacent gears on different transmission input shafts permits skipping one gear stage while shifting gears, i.e. shifting between gears whose driving gear wheels are on the same transmission input shaft, by using an auxiliary gear on the other transmission input shaft to supply a filler torque while shifting between the initial gear and a selected gear.
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Citations
6 Claims
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1. A method for shifting a twin-clutch transmission having first and second transmission input shafts and a transmission output shaft, each input shaft having an associated friction clutch, respectively, in which the first clutch initially transmits engine torque in a state of static friction and the second clutch is open and in which the gear selected to be engaged after shifting is also on the first transmission input shaft, comprising:
engaging an auxiliary gear on the second transmission input shaft having a transmission ratio which is higher than that both of the selected gear and the original gear to produce a filler torque during shifting. - View Dependent Claims (2, 3, 4, 5, 6)
Specification