10-stage dual clutch transmission for vehicle

Patent metadata

Field	Value
Publication number	US-2016341284-A1
Application number	US-201514880937-A
Country	US
Kind code	A1
Filing date	Oct 12, 2015
Priority date	May 21, 2015
Publication date	Nov 24, 2016
Grant date	—

Abstract

A 10-stage dual clutch transmission (DCT) for a vehicle includes: a first input shaft receiving power through a first clutch; a second input shaft disposed coaxially with the first input shaft and receiving power through a second clutch; a plurality of odd driving gears disposed on the first input shaft; a plurality of even driving gears disposed on the second input shaft; a first output shaft and a second output shaft disposed in parallel with the first input shaft and the second input shaft; a plurality of odd driven gears each disposed on the first output shaft or the second output shaft; a plurality of even driven gears disposed each on the first output shaft or the second output shaft; and a joint synchro disposed on the first output shaft or the second output shaft.

First claim

What is claimed is:

1 . A 10-stage dual clutch transmission (DCT) for a vehicle, comprising:
a first input shaft receiving power through a first clutch; a second input shaft disposed coaxially with the first input shaft and receiving power through a second clutch; a plurality of odd driving gears disposed on the first input shaft to implement odd ranges of a 1-range to a 9-range; a plurality of even driving gears disposed on the second input shaft to implement even ranges of a 2-range to an 8-range; a first output shaft and a second output shaft disposed in parallel with the first input shaft and the second input shaft; a plurality of odd driven gears each disposed on the first output shaft or the second output shaft to implement odd ranges by engaging with the odd driving gears; a plurality of even driven gears each disposed on the first output shaft or the second output shaft to implement even ranges by engaging with the even driving gears; and a joint synchro disposed on the first output shaft or the second output shaft and coupling or decoupling any one of the odd driven gears on the corresponding shaft and any one of the even driven gears with or from each other.

2 . The 10-stage DCT of claim 1 , wherein:
the odd driving gears on the first input shaft comprise a first driving gear for implementing the 1-range, a third-fifth driving gear for implementing the 3-range and the 5-range, and a seventh-ninth driving gear for implementing the 7-range and the 9-range, and the even driving gears on the second input shaft comprise a second driving gear for implementing the 2-range, a fourth-reverse driving gear for implementing the 4-range and a reverse range, and a sixth-eighth driving gear for implementing the 6-range and the 8-range.

3 . The 10-stage DCT of claim 2 , wherein:
the odd driven gears and even driven gears on the first output shaft comprise a first driven gear for implementing the 1-range, a second driven gear for implementing the 2-range, a third driven gear for implementing the 3-range, a sixth driven gear for implementing the 6-range, and a seventh driven gear for implementing the 7-range, and the odd driven gears and even driven gears on the second output shaft comprise a fourth driven gear for implementing the 4-range, a fifth driven gear for implementing the 5-range, an eighth driven gear for implementing the 8-range, and a ninth driven gear for implementing the 9-range.

4 . The 10-stage DCT of claim 3 , wherein:
the fifth driven gear and the eighth driven gear are adjacent to each other on the second output shaft, and the joint synchro couples or decouples the fifth driven gear and the eighth driven gear to or from each other.

5 . The 10-stage DCT of claim 3 , wherein:
the second driven gear, the sixth driven gear, the first driven gear, the third driven gear, and the seventh driven gear are sequentially disposed on the first output shaft, and a reverse driven gear for the reverse range is disposed between the second driven gear and the sixth driven gear on the first output shaft.

6 . The 10-stage DCT of claim 5 further comprising:
an idler shaft disposed in parallel with the first output shaft;
a first idler gear rotatably disposed on the idler shaft and engaged with the fourth driving gear; and
a second idler gear integrally connected with the first idler gear and engaged with the reverse driven gear.

7 . The 10-stage DCT of claim 3 , wherein a parking gear is integrally disposed on the second output shaft in parallel with the second driving gear and the second driven gear.

8 . The 10-stage DCT of claim 3 , wherein:
the fourth driven gear, the eighth driven gear, the fifth driven gear, and the ninth driven gear are sequentially disposed on the second output shaft, a first output gear for receiving power in mesh with a differential is integrally disposed on the first output shaft, and a second output gear for receiving power in mesh with the differential separately from the first output gear is integrally disposed on the second output shaft.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Gwon Yeo Hyeon
• Son Choung Wan
• Kim Hyun Chul
• Seo Jin Beom
• Park Ki Jong

Classifications

• F16H2003/0807

  with gear ratios in which the power is transferred by axially coupling idle gears to each other · CPC title

• F16H3/12 Primary

  with means for synchronisation not incorporated in the clutches · CPC title

• F16H2003/0931

  each countershaft having an output gear meshing with a single common gear on the output shaft · CPC title

• F16H2200/2035

  with two engaging means · CPC title

• F16H3/006 Primary

  power being selectively transmitted by parallel flow paths, e.g. dual clutch transmissions · CPC title