The document discusses clutches and dual clutch transmissions (DCT). It defines a clutch as a mechanical device that engages and disengages power transmission between the engine and transmission. It describes how a traditional clutch works in a vehicle using diaphragm springs and plates. The document then outlines the advantages of DCT over a traditional transmission, such as smoother shifting and improved fuel economy. It explains that DCT uses two clutches to separately engage odd and even gears for faster shifting. While offering benefits, DCT also has drawbacks like increased cost and weight compared to a manual transmission. In conclusion, DCT provides better fuel economy and performance for fast driving.

1. Submitted by-:
S Parveen singh
(151340104026)

2. CONTENT
What is clutch..?
Working of clutch
Why we need clutch transmission
system
Dual clutch transmission
Advantage & disadvantage of DCT
conclusion

3.  A clutch is a mechanical device that engage and
disengage the power transmission from driver to driven
shaft
 Allows smooth engagement.
What is clutch…?

5.  in a vehicle, when press the lever
then the diaphragm spring have
tendency to lift the clutch plate
upon the flywheel
 the clutch is disengage.
Working of clutch

6. Working of clutch
 Diaphragm spring function
that when it press inside
then it moves outward at
its corner.

7.  Waste of fuel.
 Power-lost during the gear sifting.
 Discomfort.
 More maintenance required.
Disadvantage

8. Overview of dct
 In DCT system two clutch are use.
 First clutch is engage with odd gear.
 Second clutch is engage with even
gears.
 The gear are controlled hydraulically
by a electronic control unit (ECU)
which sense the gear position and
shifting

11. Working of DCT
 Consist of two clutch plate one connected with odd gears
and other is even gears
 A Neutral position of DCT.

12. Working of DCT
 First clutch plate attach with flywheel and the 1st gear in
contact with the main output shaft.

13. Working of DCT
 First clutch detached and second clutch come contact with
flywheel and the 2nd gear connect with automatically main output
shaft.

14. Working of DCT
 Similarly for 3rd gear, the first clutch engage with the flywheel &
second clutch plate disengage

15. Working of DCT
 Similarly for 4th gear, the second clutch engaged and 1st
clutch plate is disengaged.
 then continue automatically with speed of cars.

16. Advantage of DCT
 No power interruption at gear shifting.
 Very smooth gear shifting.
 Less fuel consumption.
 Better drive and better comfort.
 Drive faster and faster.
 Gear changing time is very small

17. disadvantage of DCT
 Expansive to manufacture .
 Heavier than a conventional manual
transmission.
 Expansive transmission fluids/lubricants with
additives.

18. Who are using of DCT..?
 VOLKSEAGEN
 BMW
 PORSCHE

19. CONCLUSION
 Better fuel economy up to 15% improvement than
conventional transmission.
 DCT system best for drive faster as well as comfort and
performance .

20. Thank ……..you