How Dual Clutch Transmissions Work - Simple Explanation

How do dual clutch transmissions work? I explain how the system works, and why it is so successful at rapid gear changes. How it changes gears, and how the two clutches operate and transfer. Enjoy!
I should probably note that instead of having the bottom shaft as an output shaft, it would more than likely be a countershaft, having an extra gear at the end connecting to a third shaft (output). This would keep the engine and output rotating in the same direction. Regardless, this doesn't take away from how the system operates.
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[@zacharyKewDenniss]

This kid properly knows what he's talking about. Whenever we start a new subject at college, the first thing the teacher does is link us the relevant video on this channel. Why? Because you explain things in such a simple way and illustrate it so well. If you want to know how something works this guys videos will do it better than anything else.

[@EngineeringExplained]

Thanks for the kind words!

[@zacharyKewDenniss]

Engineering Explained they're well deserved! It should be me thanking you for helping me through the last three years of college!

[@deekaneable]

Good explanation but damn dude, your production value in your newer videos is lightyears past your old ones.

[@smac919]

lol he was still in his Alt Rock stage here..

[@Laserfish17]

super helpful, i understood in 30 seconds, also shoutout to your knees in the bottom of the frame.

[@ESPKannon]

This is the first time I actually feel like I understand how a dual-clutch set-up works. I've heard it explained before, but never in such a way as to make sense. I really love your videos! Keep it going!

[@JoeIsCrazyWillman]

Spectacular explanation, dude! Love how you can break it down so well! Anybody who knows anything about the basics or cars should understand!

[@thenerdyouknowabout]

Oh my lawd its EE the early years :) Amazing to see how far youve come!

[@EngineeringExplained]

Thank you!! Definitely make do with what I've got, glad you enjoy it.

[@TheKIDDERz]

I'm also planning on being a mechanical engineer (automotive emphasis) and let me tell you, these videos have made my love for cars grow even more! What I love about your videos are that they're so quiet, personal, and easy to comprehened. Keep it up, and whatever you do, don't add music/logos/overlays, unless your videos are being sponsored/advertised haha, because them you get paid!

[@ambydupuis]

This is where the beauty of electronics kicks in: It knows the engine revs, if the car is accelerating or slowing down, your pressure on gas pedal and/or brakes, and using those parameters it pre-engage the best gear on the alternate shaft. If the car allows the driver to select the gear (not all DCT-equipped car do) then the driver could still "trick" the system: asking a shift down when the system prepared the gear up, then a slight delay would occur upon gear change.

[@gtgodbear6320]

Ole throwback Engineering Explained videos. It's amazing how much you grew and how comfortable you got behind the camera now. Your Genius articulation is on par with the engineering gods. 😀 😩

[@scottclark2869]

Dude! You're video rock!!! I am an math/science nerd, an engineer (in the computer security realm) and a gear head. You have a knack for really laying down the science in general terminology. Keep up the good work!

[@EngineeringExplained]

@TheKIDDERz Thank you so much, it's good to know that people appreciate these as I put a lot of time into them. I don't understand why so many "explanation" videos have overlaying music, to me it's just distracting and pointless. Anyways, glad you enjoy my videos!

[@olliehopnoodle4628]

Great video. It's kinda fun to see you when you were younger. Your production quality has improved a lot over the years. That being said... great video on how a dual clutch works. I had a different idea in my head on what it meant but now I understand and can really see the advantage to the design.

[@1981lowrider]

Outstanding presentation. Well rehearsed and no fail visual aids. Well done, Sir…

[@RikuTheEmoSergal]

Your videos are completely perfect for what I wanted to learn today. Keep up the awesome work, man.

[@gyugachakraavathy]

i watch so many videos on dual clutch but i just dont understand how the stand by gear engage but not active, now i understand from your video thanks a lot , god bless, keep your good work

[@isaacsellers700able]

Amazing to see the such humble beginnings of Jason, and to see him now. 🙂

[@001FJ]

Thank you. Very good video. Simple and to the point. Keep up the good work.

[@ravenfn831]

Thanks! I was wondering the same thing, and your answer sounds so very obvious. Same thing goes for reverse. There has to be a pretty smart computer to handle that delicate balance of "feathering" the clutch on a grade vs how much throttle input the driver is asking for. Very interesting!

[@VenkateshmurthyVK]

Very well explained. You cleared most of my doubts.

[@ahmedalatabi6583]

My first video to watch for you!!! And really enjoyed it, u are really skilful in explaining, and making it easy to understand!!!! Well Done!!! Keep Up The Good Work!!! Subscribed

[@EngineeringExplained]

Ahmed Al Atabi Thanks!

[@3rd_iimpact]

You're awesome, man. Love your videos, keep up the good work. Are you majoring in Mechanical engineering?

[@ranaiftikharahmad]

Very good explanation of Dual Clutch Transmission.

[@Figure4Photography]

very unique explination man, considering it was a sinple drawing on a white board it was very very clear to understand, i had been wondering what a double clutch was and how it worked for a long time, thanks man just subscribed! :)

[@pierrehsu120]

thanks for the excellent explanation! very clear,helps me alot on my vehicle system class!Great job!

[@flaviocunhace3919]

Outstanding explanation! Keep pushing your awesome work!

[@ldsrockstar]

Great video! I just bought a car with dual clutch. I love the way it accelerates!

[@richdelgado3405]

After hearing SO MUCH about dual clutch trannies, I now finally understand how they work. Great video (as all your videos are). And a huge attaboy to whoever invented this type of transmission.

[@skaifers189]

This video is in my drivetrains course in college. Nice work!

[@davidives7671]

one of the better explanations. ( of the actual working). Downsides can be found in other videos.

[@EngineeringExplained]

You're welcome, good luck with the presentation!

[@TimWrightSaidThis]

Great stuff fella - really good and easy! Keep it up!

[@jontepontepungofficialodal3817]

Very good video, i have a hard time learning new things but i feel like i got it 😀

[@EngineeringExplained]

@evanreidel22 Glad the videos help, thanks for the support!

[@FR3DMAN3]

you have the best videos, keep at it man!

[@kalkoenjtju]

Dude thank you so much!!! I need to do a presentation about a DSG gearbox in two days and with seeing you explaining this I fully got it how I going to explain it in fromt of my class :) thanks bro!!!

[@Blujay747]

So young and chill. I swear, these days you almost lose it over torque curves. Good videos

[@niteenspedia8384]

Explanation is too good with proper content ..Nice video brother ...☺ Also make on more videos on mechanical engineering

[@yaggantoretto773]

a nice documentary about dual clutch transmission , thank you very much bro

[@domteewhy52]

Great video. Short , to the point.

[@kristofferpence]

Dude. Now it all makes sense. Thank you. Great demo.

[@MuyChafa]

Teaching simple is teaching good. Nice video!

[@EngineeringExplained]

Thanks!

[@xxxallenbigalexxx]

Good job explaining this!

[@akashdeepsingh-wo9zs]

nicely explained -- Almost cleared all my doubts

[@gabriel1812]

GREAT vid!! I was hesitant at first, but it was actually really good! Lol

[@thomasjent1431]

You make it very easy to understand. Nice Job!

[@EngineeringExplained]

Thanks for watching!

[@TheAefril]

Awesome explanation!,,,,,,,Thankyou! It makes perfect sense to me now, why formula one and consumer- high performance vehicles have gone down this path. Your presentation skills are excellent, anyone could follow how a double clutch system works.....Good Job!

[@neowales265]

Awesome video, very clear explanation. Thanks.

[@bluetorch13]

I'm watching this in 2015 thinking this is new tech... omg. Freaking awesome explanation!

[@Happytruth]

Smart guy even with this simple explanation I’m still head scratching!

[@JohnDoe-uq3mx]

There has to be some overlap involved between one clutch releasing and another clutch engaging to eliminate any shift point flare-up. Awesome video.

[@MostlyLoveOfMusic]

damn this is good - now I understand. the power and the beauty of well-constructed diagrams can not be overstated

[@kerrwilson265]

Sick video very well explained

[@EngineeringExplained]

Congrats on the new car, love the styling of the Veloster. When did I say they can't use paddle shifters? They certainly can. And it's not a stick shift like in a conventional manual. You're not pressing a clutch, and you're not physically shifting gears, you're telling a computer to do all the work.

[@EngineeringExplained]

Glad it helped, you're welcome!

[@davidmacdonald3550]

In the spirit of self learning. What tools do you use to find your research on automotive parts? Also what type of clutch would you suggest for a motorcycle operating with low torque? A dry multi-plate clutch? Btw, love the videos keep giving us more!

[@SiddharthBangale]

Very good explaination!

[@quinnmoore5985]

I'd love to see you remake this video with all your new fancy equipment. It's been a road, drive on EE!

[@EngineeringExplained]

Thanks! Glad I could help satisfy your curiosity!

[@DMStarFlash]

thanks a lot! do an entire series please, not just 1 video! i also want to know with all the stuff at the back, how does a mid engined car get 50:50 balance, which way does the flywheel face in them, is the engine redesigned to turn the other way around, how is the the transmission work if it's between the engine and the rear wheels while the driver is on the other side, also how does the side vents work and where are the radiators.. i have too many questions and the suspense is killing me! :D

[@MrErickpj]

Nice video, well done!

[@twrgs]

Great video! very nice explanation.

[@fatalsignal]

this is the best explanation what i exactly wanted !

[@TheStyrofoamPeanut]

i cant thank you enough for these videos

[@tylerd947]

cool video dude i been wondering how Dual Clutch Transmissions work thx

[@EngineeringExplained]

@Servicehans Yes, I get what you're saying, and the advantage could be lost, yes. There are also probably settings that you can adjust if the car is nice enough, so it goes for more aggressive shifting or more efficient shifting, but I don't know. The main point being, you can trick the system, in which case the shift is not as instantaneous as one would like.

[@nicsye12]

excellent explanation. thanks!

[@surfshop7552]

Nicely explained

[@blackprince7474]

Hi, !st of all,thank you very much for the following: it was clear, clean,tight, interesting and professional! Would love to ask you on your next video (or even the current one included) to add some 3D sketches to your esteemed lecture.thanx man and keep the good work.peace:)

[@BrunoMuguet]

Very good explanation. Thanks :)

[@djurovicgiorgio]

i checked them out! great vids, posted a question there! thanks for the replies man

[@bradleyfiander9263]

Explained extremely well.

[@abaubaidah]

The best dsg gearbox explanation...

[@EngineeringExplained]

Thanks for sticking around!

[@EngineeringExplained]

@J3n555 That is what happens, but the clutches alternate which is engaged. The clutches alternate and the torque transfers from one clutch to the other, and then through the transmission.

[@echschmidt]

great explanation!

[@EngineeringExplained]

I guess it always depends on the gearbox. You will never have fully automatic transmissions in racing, as you cannot select which gear to be in. That said, the shift times of DCT's are pretty tough to beat (semi-auto)! To each their own, I love the traditional manual setup.

[@subramanyamysore]

Awesome...can you show the actual parts, the sleeves, the gear engagement, the electronics/programming, and what actually engages the right gear when the program runs. Thank you.

[@namdarbolour9890]

Thanks for the clear explanation. A DCT looks simpler than traditional automatic transmissions (with planetary gearsets and their own clutches), plus more efficient as there is no torque converter (I'm assuming latter). So why are DCTs being adopted just now?

[@PistenBoy]

I agree to your statement. In my SST you can feel the clutches disengaging when you are about to stop. Interestingly when you are at a slight incline, roll back an inch or two like in a manual. On steeper inclines, the brakes remain engaged (once depressed) until they time out or you press the throttle.

[@Cirrux]

Awesome, thank you! Love the videos!!

[@hyeloque3537]

great video!

[@donyahya]

damn it's so clear. thanks very much!!!

[@EngineeringExplained]

I try to do this for the most part; point it out if I've missed one. Also, another thing I've started doing is just putting the other helpful video links in the video description.

[@bradfocl]

great explanation. If you watch the sequential transmission video you understand this one as soon as you see the diagram

[@jraposo]

dude this is great, and even greater would be if you combine your knowledge and talent to explain these things with a 3D designer

[@dleivam]

dude, you rocks!! thanks for your videos.

[@BunchOfCrazyStuff]

Wow great video! even though it is 7 years old already...

[@FerminDelgado]

Great job!

[@MrZerlex]

Brilliant, thanks for the post.

[@aymaneessanhaji8970]

Best explanation ever

[@basstard013]

So DST is 'just' a sequential gear box that engages two gears at the same time. Whereas the regular sequential can have the clutch always engaged, the DST alternates between two clutches when moving through gears. Very cool! Down-shifting looks a bit weird though, looks like it would have to revert back to a form of single clutch sequential mode. But then again, you don't need or shouldn't instantaneous power when down-shifting. For similar down-shift, you'd need three clutches!

[@Rickkari7]

great explanation

[@D345T80R]

This explanation is a hundred times better than my Lecturer, Thankyou :) A question: Is there a specific reason why Reverse is connected to the green shaft? Would it be better if it was connected to the even gears? I thought about it and cant see why reverse and first would be connected to the same clutch (seeing as you would change from reverse to first pretty much always in sequence).

[@metalicharsha]

great video bro..thanks

[@realfuzzhead]

Great video

[@TheFplopes]

thanks for the video.

[@fa90lq]

Thanks a lot .. It was very helpful

[@bboysil]

Great video, very clear. Maybe you should have noted that the engine RPM is reduced to match the vehicle speed using the next gear ratio while switching "clutches".

[@daninsyd]

Excellent and thank you!! Would you have any idea how a DCT could drop out of first gear into neutral when you come to a stop?