Double clutch transmission

A dual-clutch, transmission technology, used in vehicle gearboxes, transmissions, transportation and packaging, etc.

CN101865258AInactive Publication Date: 2010-10-20ZF FRIEDRICHSHAFEN AG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2010-10-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a double clutch transmission including two clutches with input sides connected to a drive shaft and output sides respectively connected to one of two transmission input shafts disposed coaxially to each other; at least two countershafts on which toothed gearwheels formed as idler gears are mounted in a rotational manner; the toothed gearwheels arranged on two transmission input shafts in a rotationally fixed manner and forming fixed gears; and at least a shift element (N) for connecting two toothed gearwheels in a rotationally fixed manner, wherein at least multiple power shift forward gears and at least one reverse gear can be shifted. Six gear planes are provided according to the invention so that at least one power shift winding path gear is shifted via at least one shift element. The first gear plane being a single gear plane, and the second gear plane and the third gear plane respectively being dual gear planes, comprise three fixed gears on the second transmission input shaft of the second subtransmission.
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Description

technical field

[0001] The invention relates to a dual clutch transmission of the type specified in the preamble of claim 1 . Background technique

[0002] A six-speed or seven-speed dual clutch transmission is known from DE 103 05 241 A1. The dual clutch transmission comprises two clutches which are each connected with their input sides to a drive shaft and with their output sides to each of the two transmission input shafts. The two transmission input shafts are arranged coaxially with each other. The other two countershafts are arranged with axes parallel to the two transmission input shafts, and the idler gears of the two countershafts mesh with the fixed gears of the transmission input shafts. In addition, the coupling device is fastened in an axially displaceable, rotationally fixed manner on the countershaft in order to be able to engage the corresponding gearwheel. The correspondingly selected transmission ratio is transmitted to the differential via the output ge...

Examples

Embodiment Construction

[0043] exist figure 1 , 3 , 5, 7 and 9 respectively show possible implementations of the nine-speed dual-clutch transmission. The corresponding shift diagrams for different implementations are in figure 2 , 4 , 6, 8 and 10 are represented in the form of diagrams.

[0044] The nine-speed dual-clutch transmission includes two clutches K1 , K2 , whose input sides are connected to the drive shaft w_an and whose output sides are each connected to one of two transmission input shafts w_k1 , w_k2 arranged coaxially with one another. Furthermore, a torsional vibration damper 22 can be arranged on the drive shaft w_an. In addition, two countershafts w_v1, w_v2 are provided, on which gearwheels formed as idler gears 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 are rotatably mounted . On the two transmission input shafts w_k1 , w_k2 , gearwheels in the form of fixed gearwheels 1 , 2 , 3 , 4 , 5 , 6 are arranged in a rotationally fixed manner, said fixed gearwheels being at least parti...