Patent · US Active

Dual clutch transmission of reduced axial length and method of controlling this dual clutch transmission

US8397567B2 · kind B2 · utility

0Cited by

4References

7Claims

0Family size

Assignee

GETRAG FORD Transmissions GmbH · GB

Inventors

Andreas Hegerath · Bergheim, DE
Ulrich Eggert · Viersen, DE
Ingo Steinberg · Cologne, DE
Christian Krauss
Wolfgang Brings · Cologne, DE

Key dates

Filing date	Dec 16, 2009
Grant date	Mar 19, 2013
Priority date	—
Expiry date	Apr 15, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/19251
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A dual clutch transmission comprising a first partial transmission and a second partial transmission is provided. A first group of forward gears is allocated to the first partial transmission, a second group of forward gears is allocated to the second partial transmission, each one of the forward gears comprises a particular transmission ratio, two adjacent forward gears comprise adjacent transmission ratios with no transmission ratio of any other forward gear in between, and at least two adjacent forward gears are allocated to the second partial transmission. Further, such a control method for controlling the dual clutch transmission is provided that a torque transmitting gap is closed when gear shifting between the aforementioned two adjacent gears.

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