Has Koenigsegg Made The World's Fastest Shifting Transmission?
Motor
How The Koenigsegg Jesko's Light Speed Transmission Works
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The Koenigsegg Jesko is a marvel of modern engineering. With a 5.0L twin-turbo V8 engine, it produces 1600 horsepower on E85 fuel. That's just the start. Power is sent through a 9-speed, 7 clutch transmission. Why on earth would a transmission need 7 clutches? For insanely fast shifts, from any gear to any other gear, that is. According to Koenigsegg, the clutches can open and close in as little as just 2 milliseconds! The setup uses three shafts and compound gearing to make it all work, resulting in less gear pairs overall. With a clutch for each gear pair, shifts are not only insanely fast, but there's never a loss of torque during upshifts either, as the clutches overlap while closing and opening, meaning you'll retain positive torque during the shift. Check out the video to learn all about how it works!
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Kommentarer
0:25 Did someone just deadass sell their S2000 for 150k?!?!?
Any time I start feeling smart I watch one of Jason’s videos, And Immediately remember that I’m a moron.
or use a conitnously variable transmition
So basically it's a DCT with a selector for each gear?
Did nobody else notice somebody in San Diego trying to sell their S2000 for $149K?!
Most of the ware is taken by the clutch plate, so common sense says that the more clutches the more ware. Although they are in an oiled state all the time, the temperature of that oil is going to rise quite fast so the clutch plates too are going to heat up, this maybe O.K. for racing cars but for road use there are a heap more parts to wear out a lot quicker. Therefore the original auto gearbox is much prefered out of all the systems, C.V.T.has already proven to be prone to breakage of the drive belt which on breaking releases a load of metal sections loss in the gearbox as both Ford and Honda have found out, There is an auto transmission that has proven to be good and long lasting that is the pre select gearbox used in buses and in some of the more costly cars of the past, i.e. the Daimler1937 had pre select and proved its durability by still being compleately reliable still in the seventies. Taking into consideration that machining has become greatly improved then making this form of transmission would surely be a worthwhile idea to put into modern cars???
Absolutely love your videos!!
How come nobody has commented on the fact that the video is 13:37? (Which clearly underlines what Jason thinks about the transmission)
*Him explaining DCT shift* My brain: Time For Crab
“I had that thought at one point too.”
Wow, pretty clever. As expected from Koenigsegg.
Fascinating
Interesting , Thank You
By which clutch plates are pressed
Could this be used in F1.
Could you explain how 10 speed dual clutch transmission which made by ford and GM engineering? Thank you for good explanation 👍
HONDA for 45 years uses CLUTCH PER GEAR - since the day they started building automatic gearboxes for their cars :-)
Thatd actually pretty smart gearbox
should consider using a "DeEsser". Your "S'" are quite loud with a headset on. JAHU
Yeah, that's all a bunch of fancy shafting but, when in manual-auto mode there is human lag for 9 gears. I like a 6 speed sequential transmission for large NA and low? revs. Less work and less complexity=good stuff. Thx
So you say that the guy will need to replace 7 clutches? HA, yeah, Koenigsegg goes for performance not maintnance. I still wait for the Freevalve and Toyota thing.
this clip is 13.37 long D:
i kinda thought of something like this a while back where all the gears are always in mesh. but i couldnt wrap my brain around it
It this video was recent I’d tell you to get an mr2
I thought the fastest transmission is Sequential Gearbox just like what F1 cars use
Shahood Zafar
5 måneder siden
but, the sequential gearboxes may not be reliable...
Your clutch is slipping... ...which one?
1337
Hey jason, does this mean that its better than a cvt or not?
You are going to end up with a 350z.... Word!
If anyone could make the fastest transmission, it would be the Swedish love child that is Koenigsegg.
how much power is lost with all the dragging open clutches
Am i the only person that wants to know how those clutches are engaged?
MCT - Multi Clutch Transmission
Say hello to the most expensive clutch job in the world.
Next step: the transfer shaft is concentric, and using planetary gears. In seriousness, I would like to see comparsion between the LST and a planetary automatic.
Tesla roadster: laughs in one gear automatic
Yooooo are we going to engage a clutchpack to turn the steering wheel also? 😳
The downside is you have to buy 6 clutches, the upside is the clutches last 6x as long
Jonas Larsson
6 måneder siden
You always use all gears all the time?
it's a flex plate. not a fly wheel.
SuPrA iS fAsTEr aNd A lOT ChEaPEr
Sorry if the question as already ask. But! 10:30 If the two clutch overlap each other, does not mean that there two gears at the same time? It's not problematic for the transmission? Thanks!
Koeniggseg were more or less forced to design their own transmission. There issnt one on the market for the amount of power and torque the engine produces.
Can you please make a video explaining the Direct drive of the Reggera!??
The transmission design makes me envy it wasn’t me who invented it. I do have one concern though: does it mean that replacing clutches (which are a wear item even in consumer cars, not 1500hp+ monsters) will require complete gearbox disassembly?
Now here’s my question. When can I get one a 4 speed or 6 speed for racing ;-;
The repair bill for one clutch is probably more than my car.
almost as fast as sisu fuller transmission
i was about to comment "have fun when your clutches burn out." then I realized, if you can buy a koenigsegg, you do not have to worry about that, you can just buy another
The LST reminds me on a mountain bike transmission
If Koenigsegg made inventions for Formula 1, the series would be much more interesting...
Sadalsuud
3 måneder siden
They would ban his shenanigans i am afraid 😁
This is mechanical porn. I enjoyed it.
Jason - Thank you for your video, I appreciate your work. Your enthusiasm for your material shows thru! I hope to ask if you can share any evidence that K completes a shift in 2 milliseconds? I saw that on your whiteboard and am intrigued. Is there any way you can provide more detail on how this is done?
Moral rhetorical question of the video: Do you want a Koenigsegg, or a house wife and kids
get a m3!
Christian von Koenigsegg : Ok, so how many gears and clutches do we need? Gearbox lead engineer : Yes(ko)...
Great explanation, thanks for the video. Is it me, or did you just describe an automatic transmission without a torque converter? A few Ravigneaux gear sets and there’s all your gears. Each gear having a clutch pack is in all auto’s.
DSG ain’t a thing in front of light speed
After watching your videos, i became a great fan of koenigsegg
Anyone knows the DSG and the PDK gearbox shifting times?
Koenigsegg use to be really perfectionist on manufacturing cars,..
ALBER PAJARES
9 måneder siden
By the moment ¡ guess rolls Royce not gonna commercialize the 1000km/h yet, so by the moment the fastest cars commercialized are the Chiron and the Jesko..,
Is it me, or are Koenigsegg engineers just making the ultimate car?
Interesting, but can you explain how & where did Koenigsegg managed to place the torsional dampers ? Is it placed in engine front?
Why don't you make animation videos?
If your Engineering University Professor is smart they will put up a video of Engineering Explained on the widescreen in class and not have to say anything.
Koenigsegg is a genius
What's the difference between this and the kick-down (6th gear to 3rd gear under acceleration) experienced by automatics (Audi, Merc, BMW)? How did they do this kick-down without having 7 clutches like the Jesko? Genuinely interested, not a troll...
Kyriaeus
8 måneder siden
All modern planetary automatics use multiple clutch packs in combination to engage each gear, and all of them are able to do any single or double shift with a single swap (1 clutch pack engages while another disengages). Most of them also have large direct jumps like how the ZF8 can skip 8-2, or how the Honda 10AT can skip 10-6 and 7-3. If they need to do an even bigger jump that just means doing multiple swaps (e.g. 2 clutch packs engage while 2 disengage).
8 clutch pack light speed transmission : pricey fixing 8 clutch pack light speed transmission when broken : priceless ! lol ,
what if something bugs and put transmison in 2 different gears?
Yet another outstanding explanation Jason! You are top of my shelter in place bing watching list!
More CLUTCHES come in CLUTCH
The new c8: We have a new dual clutch that is the fastest on the market Jesko: Hold my beer
Awesome
Test drive an e46 m3! 😄
when i get on my bike next time i am going to start on gear one and then jump all the way to gear 7
see i get it that havnig a dct is good for compact small transmissions but why not get rid of the dct for longer cars
but i don't get this. on a regular transmission. why can't you just build up the energy one gear one, and then engage the clutch on the highest gear.
but some inspiration from koenigseggs lst. THe thing is you can switch from gear one to any gear you want but if you want to go straight from gear one to the highest one, why not just make a special transmission in which it works similarly to koenigseggs lst but you don't need to go to all the gears
great job as always, yoru videos always make it very easy to understand. Your diagram is so good that you didn't even need more of the video because as soon as I saw the diagram, in less than a minute I understood how it worked
That’s similar to the idea behind the way a tractor trailer transmission works.
Fantastic videos mate, thank you very much for doing them. They're incredibly helpful for guys like me who really don't know all that much about cars/mechanics, but would sure love to learn!
Legendary video as always. My kids will be learning lots from you.
SJWs be on a hell of a TRANS mission, aye?
And then Christian finds he will need 12 gears. That means two sligthly longer axes and two more gear wheels and clutches. Can CvK make that under 100kg?
Shouldn't be DCT's upper row gears drawn in black color?
I understand nothing...absolutely nothing. Yet I'm still here.
How durable it is with all these clutches?
pro tip: buy car, with 10 gears, launch it 10 times, 3 clutch packs to replace, $150k each, thank you - says Mr. Koenigsegg
This is basically a bike transmission. With three gears on the front and rear sprockets
Cool drinking game. Every time he says "shaft" take a shot. Really want to liven things up? Take another when he says "gear/s"
Get an RX-7
What is wrong with a cvvt?
Jonas Larsson
6 måneder siden
Valve trains are no good for transmission.
From a Z owner, don't buy model years 2009 - 2012. You might get stranded in the middle of nowhere cause the immobilizer took a coffee break.
Remember some years ago there were a lot of people saying that Koenigsegg made cars with highly tuned and modified engines and not much more than that... Well it's been time I don't hear (read) those type of comments anymore. Koenigsegg proves itself more and more everytime.
Honda has been clutch packing individual gears, in their auto transmissions, since the '70s. This Koenigsegg transmission, as Honda engineers would say: "is almost same."
just like the transmission on my montain bike
what about a sequencial gearbox?
E46 M3 👍
Not that i am some enlightened being or anything like it but what most people don't realize is that when you pay millions for a Koenigsegg you are not paying for a car, you are paying for a Van Gogh on wheels, whereas instead of a painting, you get a machine engineered to art.
This trans type is really old, has been in tractors for like 30 years. It is a "powershift" transmission. Jeez
Jonas Larsson
6 måneder siden
So....?
do something about the engine in the "Gemera" please :)