Dual-clutch transmission
AssigneeDaimler AG
InventorCarsten Gitt
Life of this patent
Estimating the term…
Abstract
A dual-clutch transmission has two input shafts for connection to a power shift clutch, at least one countershaft offset in parallel to the input shafts, an output gearwheel designed as an idler gear and situated coaxially with respect to the countershaft, at least one gearwheel plane having an idler gear situated coaxially with respect to the countershaft, and a shifting unit having a first shift position in which the output gearwheel and the countershaft are connected to one another in a rotationally fixed manner. The shifting unit has a second shift position in which the idler gear and the output gearwheel are directly connected to one another in a rotationally fixed manner.
Claims9
A dual-clutch transmission, comprising:
- a power shift clutch;
- two input shafts configured for connection to the power shift clutch;
- at least one countershaft that is offset in parallel to the two input shafts;
- an output gearwheel which is configured as a first idler gear and situated coaxially with respect to the at least one countershaft;
- a first gearwheel plane having a second idler gear that is situated coaxially with respect to the at least one countershaft;
- a shifting unit having a first shift position in which the output gearwheel and the at least one countershaft are connected to one another in a rotationally fixed manner, wherein the shifting unit has a second shift position in which the second idler gear and the output gearwheel are directly connected to one another in a rotationally fixed manner;
- at least one additional gearwheel plane, which in at least one forward gear ratio or at least one reverse gear ratio is provided together with the first gearwheel plane for transmitting a force flow or power flow,
- wherein the dual-clutch transmission has a total of five gearwheel planes each connecting one of the input shafts to the at least one countershaft and a total of five shifting units maximum for shifting at least eight forward gear ratios and at least one reverse gear ratio.
Dependencies are inferred from the claim text.