QUOTE(jasonlim @ Jan 7 2018, 11:00 AM)
In your dream
Only higher end model like golf gti cc is using wet clutch
Others still using dry clutch
It is time to stop the nonsense about dry clutch urban myth.
Understand the issue, be sensible and stop spreading dry clutch is less reliable that wet clutch - again myth.
There issues were 2 issues really. I broken down for you. Read carefully and judge yourself, hope you learn something to day and stop the false myth moving forward.
1) mechatronics failure. This is really small robotic arms to engage/disengage a gear. It is not related to the clutches. Just like when you drive manual car, you disengage your clutch to
disconnect engine output to gear box, the shift the gear. Only that in DCT/SMG/DSG, the shifting is done by computer via the mechatronic. Now that the mechatronics problem is resolved, but when it happens it affect both dry and wet clutch.
2) Excessive clutch wear. This is where the urban myth stated by confusing this problem with problem one together as single problem. This is simply due to software logic to handle low speed traffic. The logic doesn't properly handle the stop go traffic and in the half engaged stage for excessive time. Again just like when you drive manual car, try hold your car by engine power (without brake of course) on a hill. Mild throttle, and half release the clutch. Hang on there for 5 min, you will smell your clutch burning. Lastly, this is a matter of software fix by improving the logic.
Additional knowledge - Then why do we have dry and wet clutch? Each gear box is designed to handle a maximum torque, no matter manual/conventional auto/dual clutch. If engine torque exceed the gearbox rating, the clutch(s) slip. Wet clutch can handle higher torque by dissipating heat via the fluid that covering the clutches, generally wet clutch dual clutch designed for torque over 400nm. So it doesn't make sense to put wet clutch in every car, and further more dry clutch have less resistance and provide better fuel economy.
This post has been edited by constant_weight: Jan 7 2018, 03:01 PM