Patent · US Active

Dual clutch transmission

US9714698B2 · kind B2 · utility

2Cited by

4References

20Claims

0Family size

Assignee

AUDI AG · DE

Inventors

Johann Märkl · Nassenfels, DE
Axel Heitmann · Friedrichshafen, DE
Steffen Hummel · Diez, DE
Frank Vollmer · Erlangen, DE
Alexander Schmidt · Ingolstadt, DE

Key dates

Filing date	Oct 23, 2013
Grant date	Jul 25, 2017
Priority date	—
Expiry date	Jun 4, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2200/2033
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A shifting device for a dual clutch transmission as a speed-change transmission for motor vehicles, including two coaxially arranged input shafts, each being activatable via a clutch, an axially parallel output shaft and gearwheel sets that are mounted on the shafts and can be shifted by means of shifting clutches to allow a plurality of forward gears and a reverse gear, the gearwheel sets being subdivided into a sub-transmission having the one input shaft and a sub-transmission having the other input shaft. To achieve a wider gear-ratio spread in a structurally compact construction, a planetary gear train that can be shifted between two gear ratio stages is mounted upstream of the sub-transmission having the hollow input shaft.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.