Koenigsegg Jesko - 9 speed gearbox working in detail
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- เผยแพร่เมื่อ 26 ส.ค. 2024
- Koenigsegg developed this gearbox / transmission for Jesko. It hypercar able to produce 1600hp just from 5.0 liter V8 engine. It also has 9 gears and 1 reverse, and Engine also doesn't have flywheel. The gearbox along with differential weighs only about 90 kg which is marvelous considering it can transmit that much power and has so many gears. Without use of any special materials this was achieved just by using clever Mechanics, by using principal of gear compounding. The video explains it in detail.
Koenigsegg: "We found a way to completely get rid of the transmission with Regera."
Also Koenigsegg: "But we also made the best transmission in the world for a good measure."
Christian von Koenigsegg is a car enthusiast of the highest degree. He wants to make the ultimate sports car but realizes that there are many ways to achieve it. The Gemera, Regera and Jesko are all very different megacars (over 1 megaWatts of power) with very different engine types, transmission configurations and driving feel, but are all able to beat the Bugatti Chiron.
@@andrewchan5153 You forgot the question-mark?! Why would they have to beat the Chiron and in which category? ;-)
@@MichaelOZimmermannJCDECS yes
Didn't expect much from this video however it turned out to be a good and intuitive explanation. Thanks
bro, he is an indian mech. enought said
Its crap. Im sorry this rtrd muddies koenugseggs name.
I thought the same :)
Seriously, looking past the accent, which I had no problem understanding, your video was awesome and insanely intuitive. I’ve never seen a video which simplified the explanation of a transmission to this degree, but the credit also goes to Christian and his team for developing an extraordinarily complex yet simple transmission. You definitely have a subscribe from me good sir, please bring me more koenigsegg content 🙏🏽
The accent wasn't nearly as bad as some other Indian (I hope thats correct) speakers. So yea, you hear it, but it's not disruptive or something. Also has to do with the good pacing of the text, not too fast or slow.
@@Dirkietje8 This sounds more African than Indian. But could be. But his explanations are very good and he gets his info from good sources.
Most of the likes are from indians. Terrible video presenter.
@Raghav Varma 𝔄𝔫𝔡 𝔱𝔥𝔢𝔫 𝔞 𝔡𝔦𝔤𝔲𝔰𝔱𝔦𝔫𝔤, 𝔪𝔲𝔰𝔩𝔦𝔪, 𝔞𝔫𝔰𝔴𝔢𝔯𝔰 𝔪𝔢....𝔬𝔥 𝔱𝔥𝔢 𝔦𝔯𝔬𝔫𝔶
𝔜𝔬𝔲 𝔞𝔯𝔢 𝔞 𝔡𝔦𝔰𝔤𝔯𝔞𝔠𝔢. 𝔏𝔦𝔨𝔢 𝔦𝔫𝔡𝔦𝔞𝔫𝔰 𝔡𝔬𝔫'𝔱 𝔩𝔦𝔨𝔢 𝔪𝔲𝔰𝔩𝔦𝔪𝔰 𝔦𝔫 𝔱𝔥𝔢𝔦𝔯 𝔠𝔬𝔲𝔫𝔱𝔯𝔶.
Thank you, you are the first one to explain this transmission
lol what? it isnt hard to imagine. the cycling world had always known this. only in cycling, it is 2 sets instead of 3 sets in the Jesko
@@lyanbv alrighty mr smartass we get it. You know everything 🙄
@@abadibi lol get a life.
@@abadibi oh. I mean... A bike.
@@lyanbv "work harder and get a car. A bicycle is a little boy's toys get a car like real man" - Jeremy Clarkson
Automatic transmissions have been doing this "ratio compounding" for a few years, but this clutch arrangement per gear is amazing! This looks really expensive! Christian and team are amazing!
actualy it's less expensive because you have less raw materials and its more compact. this is just a new arrengement... brilliantly simple
Bill Welter Honda has been doing clutch per gear on there automatics for ever.
@@V12Buickguy Dual clutch automatics... because they didn't want to pay for patent fees for automatic technology. So their automatic looks like a manual transmission inside... but with the classic input/countershaft and output shaft. They can't compound a variety of gear sets... yet.
And the engine can shift from any gear into any other gear in just 0.2 ms, hence the name "lightspeed". Truly amazing ingenuity.
I remember Christian said that they made the gearbox by adapting gear in bicycle. faster speed ratio smaller the gear thus reduce weight.
absolute genius
Holy crap! Its so obvious once its explained.
I’d love to. Gotta be easier than the normal system of syncro rings and stupid little levers and arms and all the other crap. Obviously you misread the intention of my initial comment, which was one of those “ how has no-one thought of this before” moments. Add clutches, reduce cogs, get more gears and smoother shifting. Its fricken brilliant in its simplicity.
@Not Hitler don't hate just because you don't understand. A lot of people are able to understand how this works
Wow! Your explanation was very helpful, as to understand how Christian got at 9 gears plus make it smaller and lighter. Thanks ah million. 👍🏾
Mr. Koenigsegg always invent a new simple technology, he's thinking 100 years forward
Well, he is obviously, despite his genius, not seeing the writings on the wall... ICE-technology is out. Mr. von Koenigsegg's genius is needed elsewhere! Or just build a fully electric sports-car, before TESLA unleashes their Roadster II... ;-)
@@MichaelOZimmermannJCDECS that's totally false, electric cannot replace ICE, the batteries are big, heavy, expensive, lasts only a few years and, the worst part, are made by very scarce materials so it won't be able to be produced as massively as a compact, efficient, way cheaper and overall more reliable engine. Governments are making a huge mistake by taxing and limiting ICE technology because EV cannot and won't even in future be able to replace them, they should spend all that money on neutral fuels just like FIA and F1 are doing, that would be even greener than a reeing car.
Koenigsegg is always coming out with the car Tech of the future. Freevalve, this gearbox and probably more I don't know about.
The car without a transmission (Regera)
I think he said somewhere that the Regera’s successor will be using freevalve
hollow, 100% carbon wheels, suspension features, naked finish (KNC), door hinge that now has an upgrade to fit the old vehicles too so their doors clear the sidewalk when opening, and now, as the Jesko is the last fully gas powered vehicle and possibly last vehicle produced by them to use any gas, this should be a message to people thinking about future gas vehicles... simply put... DON'T.
@@amphedroxyn4251 I could never stop driving gas cars anyways. When gas cars become illegal I'm done driving.
Ok CVK (and his engineering team) are definitely geniuses.
they're alien
Excellent video on compound power flows in layshaft transmissions - this is coming from an OEM transmission engineer!
Thanks. youtube is way cool for making this possible; the video AND the comments !
@Not Hitler North America's biggest OEM..
Basically all 9 gears are in "reverse" and the reverse gear is not
Lol true
Koenigsegg is the best, hope this tech tricles down to something we all can afford!
This is some very old technology, If I'm correct the reason it's not used commonly is because the low weight isn't much of a benefit in cars that have a quarter of their weight come just from comfort equipment that noone uses, while this transmission has poor efficiency, and much power is lost due to the friction. Remember:All gears are being driven, even if not engaged to the shaft. However, uncommon with cars, this thing is supposed to be the transmission of scooters, but don't quote me on that, I don't know much about motorcicles.
It a transmission. Koengegg being doing they own one forever. Not the most reliable one but it can do what Bugatti can.
@@g.zoltan "All gears are being driven, even if not engaged to the shaft"
This is the same for syncromesh transmissions, which is basically EVERY manual and dual-clutch on the market since the 1950's/1960's.
And i am hoping what we can all afford will trickle up to be able to all get Koenigseggs ! Of course this probably means the end of money, but that happens to be the only answer for all other problems at the same time ! yep !
@@jsquared1013 but with the traditional clutch-at-flywheel arrangement, when you disengage the clutch the gearbox stops spinning.
For the autor , excellent explanation
For the Koenigsegg, excellent engeneering
So this is basically a bicycle's transmission with 3 cogs in the front and 3 cogs in the back + it has a lot of clutches and a reverse gear + a LOT OF GENIUS ARRANGEMENT. Got it
Pushing technology forward whilst simplifying principles... excellent work from Koenigsegg again.
I'll be honest i did not come expecting much but this guy explained it so well that there is no room for doubt. Good job!
Crazy to think that that koenigsegg has come out with two completely new transmissions in a matter of a few years when the rest of the industry has come up with two new transmissions in about 60 years. In my opinion Christian is the most brilliant automotive mind in the world
Give some credit to his engineering team too, this sort of thing takes at least a few people to make work
AVRO yes absolutely. When i said “koenigsegg” i was referring to the company as a whole. One of the videos (i believe it may have been MrJWW’s) Christian even admits this idea was first tossed by one of his lead engineers. They have such an amazing team
@@btravassos1226 Koenigsegg now is what Ferrari was up to the 80s
Woow... very easy to understand explanation and animation!!!
Thanks for this awesome video!!
I’m subscribing to your channel right now!!!
Right it seems like only Koenigsegg is doing such extreme complex yet awesome thing among other car manufacturers
🔥"IMPORTANT POINT"🔥
I have observed that there is some miss interpretation about clutches. Here's the point.
Clutches replace synchronizers not dog clutches( 1:1 couplers to connect shaft and gears).
Hence the point of friction loss cannot be related that much, as once gear is engaged clutches have no role to play for power transmission. The only use of clutches here is to eliminate synchronizers due to their limitations. While clutches of more specifically wet clutch packs are better to relay at high speed for smooth shifts.
That should make the point clear.
How does this gearbox disconnect engine when the car stops with engine idling?
Untangle Club The clutches replace the synchros and/or dog clutches. They most certainly do transmit all of the torque. There are no synchros or dog clutches, that’s the whole point of this. To reduce weight by eliminating shift forks and rails and all that associated stuff. And for lighting fast on power seamless shifts.
pavel cotijepotom It just releases the clutch for first gear. Kind of like a dual clutch transmission.
WhitelegacyGuy thx
@@powl_cz3736 V podstate to isté, ako pri obyčajnej prevodovke zošlapnutím spojkového pedálu, len pri obyč. vyhadzuješ len jednu spojku, tu vyhodíš sedem(resp. dve naraz).
Jesus! This video is so god damn good, you make it extremely easy to understand in such a short time. You earned my subscription.
Great video, however, everyone has been getting this one detail wrong. This car is not the car that will do 300Mph. The first version of the car is called the Jesko. It is the track version of the car with maxed out aero. The aero will not allow 300Mph. But Mr Koenigsegg himself said that there will be a future version of the car with a smaller rear wing and less aero that will be capable of the 300mph speed. That car he said will be called the Jesko 300 or something. He wasnt very specific with the name.
I think he also said that it'd be the less expensive version
The 300mph version will also have a much simpler suspension setup as it won't require the third cross damper both front and rear, which in the track version is required to help maintain the ride height under such high downforce.
😊Well I am not a native English speaker, that's why it's difficult for some of you to understand my accent. The video is being seen in 70+ countries, so I can understand each one of you is familiar with different accent. I will try to improve mine, so that's easier for you to understand.
Kilos is more mainstream than KGs is what I have understood from some comments, will remember it for next time.
Hope you like the content, as that's what I focused the most. Do let me know your thoughts.
Are you from India bro.
Your accent is clear and concise. 👍
Great video. Can you point me the the source of your information, if it is publicly available?
Look at shmees vid on the jesko and MRJWWs vid both were at the factory recently very informative talked to mr. Koenigsegg himself
Vishnu Nair Try a patent search.
Thank you .thank you.thank u .thank u. I been waiting for someone who have the idea about this insane transmission mechanism
Just, innovations after innovations. Koenigsegg is just genius
I think Cristian said tjat the gearbox of the chiron weighs about 300 kg. But not available to buy so we made our own gearbox. He also said that he will problably blew up a few gearboxes before he gets the strength right. Brave man. Almost all the vehicles is sold already of the production run.
Epic video, thanks for the upload!
Idk how clever this is, but to me it seems absolutely genious
Formula 1 had this back in Sennas race days.. its not new tech per say but its deffinetly cool
not only the first video but also the best explaining one..! 👍
They sure are smoking the good stuff at Angelholm
You have out done yourself on this one. I understood the basic workings of this trans before watching but this really made it all mesh.
This is a lifesaver. I would have gone crazy if I hadn't figured out how this thing works
Very nice explanation, thanks.
Similar idea class 8 trucks do with hi/lo range and splitting gears. Although this uses clutches rather than shifting forks and collars. I couldnt comprehend how a transmission could have 7 clutches. This explains it well, they are mini clutches on the 3 shafts that engage each gear ratio. Rather than one big clutch slowing the input shaft. Genius.
Good explanation man, very easy to understand! Good luck with your channel!
Finally... been waiting for this since the launch. Thanks
thanx for making this video i was looking out for the explanation and there you are!! thanx mate
Thank you! Really looking forward to this since the car came out!
Will every manual transmission be like this one day? I think so, its genius
It’s not a manual though it’s auto
That was a very concise explanation, Well done mate
Don't judge a book by its cover! This video is very instructive and well put together.
Tractors have been using this "power shift" transmissions for years to handle tons of torque from diesel engines , the clever idea here's to make it light and compact to be used in a car.
Good to know, would automatic semi trucks be similar?
@@TheMrANONYMOOSE I have never seen one like these in semis, but my experience with trucks is very limited to assure that they don't exist.
@mondayfool In this design even with wet clutches, they are all locked, since it does not have a torque converter, input and output shafts have constant speeds and can be 1:1 when needed. The idea in tractors is not to stall the engine when you have the implement down and you need to shift up, it gives you seamless shifts, what Koenigsegg is claiming with this design. Efficiency depend on the application.
Early Saab’s had a very similar set up using three shafts to generate four forward gears using compounding of two ratios per “gear” because there was a dropper gear on the third shaft. This made the gearbox only about 250mm long excluding the differential.
Im still sad what happend with Saab.
Great explanation. Thank you
Damn this is impressive, having the shafts constantly rotating instead of the pause when engaging the clutch on a typical manual is beneficial not to mention the small size. the only thing i consider is being synchros are metal 'gears' themselves replacing them with clutches a typical wear item, what is the life expectancy comparably. I imagine it would work fine on a super car which typically hold low miles but i imagine this would not work on a daily.
For the first time I dint skipped the add
That was a fantastic explanation. Great job at making it simple for anyone to understand!
Took a leap of faith clicking on this but very well explained, well done, thank you for sharing.
I reckon this one video has more in depth explanation than all of the lectures on transmissions in automotive engineering courses in offer ....
Engineering Explained has an even better video
This is really cool. I love this explanation. Koenigsegg is the best.
Koenigsegg already has a video explaining it. it is just a torque converter and a single ratio, with electric motors helping to provide low down torque when needed.
@@sepg5084 That's the regera. This is a completely different car an gearbox.
@@emilmuhrman I have another comment asking about the regera
90kg may seem heavy, but this also includes the differential and starter motor. Great explanation of how it works.
Phil Nolan Dual clutch is twice as heavy...
Maybe it can be much lighter for a 180HP family sedan, but for a super/hypercar, it is as light as it gets.
When I heard his voice I was like ok ... another clip with the guy from the life of Pi but then I watched it and it was really good, ty
Great one!! But how did you got the details in such short time of launch?
I'd like to know this as well, as I can't reconcile the solid works general arrangement provided by Koenigsegg with this explanation explicitly, but it's certainly very, very close conceptually. It's very good work, nonetheless.
I suspect Koenigsegg have carefully selected the elements visible to obscure their true size and location, making this explanation all the more impressive.
Thank you for taking the time to put this together.
I highly suspect that it's not exactly like this, but that the concept is identical. An impressive analysis
@@benjaminmcintosh857 This information is readily available on the internet, Koenigsegg is very open about their innovations.
I'd like to know too. Regardless, excellent video!
He likely figured it out by himself, just using the information given.
Excellent explanation. subscribed
Love it bro this is the first video I have seen in this channel
And I was really desperate for this video
I really thank you from my heart
You also got a new subscriber
Exelent video !Thank you !
Great video ❤️
But this is not new at all, tractors are using this technique since decades. But it is nice to see that this tech made it to the auto industry 👍🏻
To put it in simple words.
When input is recieved on the frst shaft it can be transferred to 3 gears on the second shaft. When it is transferred to the first gear on that shaft. Rpm decreases for the second shaft and is further more reduced by the first gear on the second shaft. When it connected to the 2 n 3rd gear it increases. When the first shaft is connected to the second gear on the first shaft input rpm increases a bit as output gear is smaller. Again it experiences the highest resistance when it connected to the 1 gear on the second shaft n goes faster as we go to the 2 n 3 rd gear when we reach the 3rd gear on the first shaft we again connect it to all 3 gears on the second shaft.
So the combination is
1.(low input rpm) 2.(mid input rpm) 3(high input rpm)
123. 123. 123. (These adjust resistance to the gears on the first shaft).
Very similar to how the automated gearboxes of a lot of off-highway machines work (e.g., JCB powershift), except on a smaller scale and probably much more optimised and refined.
Parallel axis gearboxes with multiple torque paths are not new, for example Daimler are in series with their 8 speed DCT which uses multiple torque paths. There are quite a number of challenges in the Jesko layout shown, not least that it has no launch clutch, so at least one of the shift clutch(es) will have to handle a lot of slip power, and it will rattle in neutral across the meshes with the cyclics from that flat plane crank . The cartridge valves look like high pressure parts, and will struggle with precise control for smooth launch/shifting, plus the anticipated 20-30ms shift time might be interesting with a typical valve of that type having a 15ms+ E-H delay, even without any 'security' valves or forced low line pressure to prevent unwanted (high A-SIL) torque at the wheels in case of a single point hydraulic failure. All that being said, lovely to see Koenigsegg trying new things, and I really hope that they solve the issues - we must keep moving forwards!
Koenigsegg : We got rid of the gearbox itself!
Later, Koenigsegg : Hold my own in house made reinvented beer, we completely reinvented the gearbox too!
Unreal. He combined the compounding from the bicycle, the wet clutch gear engagement from the TC auto, the multi clutch action from the DCT and the ability to shift to any gear like a manual and then topped them all. And it's so simple.
These gearing concept are already present but Koenigsegg revolutionized it
Pretty sure gm has something similar to this. They have 5 clutchs
Don't like the spoken english, but you my dear are a monument of knowledge ! Thank you !
Brilliant job explaining this!
What clever design. Great video! Thanks for the explanation
crazy clear explanation
It's also worth mentioning that the engine is capable ~1500 N/m of torque (1100 ft/lb), Other supercar transmissions generally can't take that much and weigh more.
@BugattiMan© if you had read "generally", it would have spared you from writing your message.
Genius. And very well explained. Thanks.
This is Apple of cars, its engineering is impressive
very easy to follow flow of power described.
Excellent explanation!! Thank you so much in posting it!
Koenigsegg is a fricken genius
Beautiful engineering
cool, ingenious... well done koenigsegg for innovating*
Gotta love Koenigsegg
Honestly the only thing which is holding this magnificent piece of engineering away from the mass market are the 7 clutches. I guess its too costly for maintenance and also cost intensive in production.
I guess if just one pack of clutches wears out, you have to replace all of 7 of them. And the process seems not fun at all as they nested inside of gearbox. This box needs to prove themselves over the time about their performance and reliability.
_brilliant_
Dude you are awesome !
Could you make one explaining the regera. That would be great.
I have watched tonnes of videos about Regera's one-speed system, but couldn't understand even a bit. LoL :) That would be useful for me, too :)
Imagine a gearbox that is permanently in the highest gear always.
It is then assisted with 3 electrical motors for the low rpm.
Not a hybrid system when it only goes with electric OR combustion. Both are working together.
Thank you soooo much. You doubled my horizon. My life is complete now :) Jokes aside; thank you, indeed!
@@EbmasTR he said it already, but also remember there is a torque converter, so revs can be adjusted even with the direct drive layout. The final drive through the differential is geared long, like 7th gear, so theres no transmission, and there's an electric motor on the crankshaft and one on each rear wheel :)
Regera also have torque converter, which can be utilized as a makeshift CVT. Not very efficient, but still provide extra torque at low speed when the engine revs higher than the output shaft. At higher speed, the torque converter locked-up and create a direct drive system. Combined with electric drive, it can go faster and more efficient, but CvK also said that even if the electric motors were turned off, it can still accelerate from 0-60mph in 4 seconds.
th-cam.com/video/glf_k4qGBAA/w-d-xo.html
An extremely informative video. Very good explanation thanks!
This is a similar concept to honda automatics. Only without a torque converter and more gears and a lot higher torque capacity. I hope it works like they want because it will be awesome.
? Honda autos are CVT's now that's not the same at all
@@TheMrANONYMOOSE WAT? The new ones maybe. I have been rebuilding them for 15 years. You sir are wrong.
@@V12Buickguy my b I assumed you were talking about the new ones, yeah they're cvt now
Very good explanation! I understood and I knew nothing about transmissions
*Tbh this is one of the simplest automated transmission i've ever seen*
Great presentation.
This is brilliant 🤯
Amazing video and explanation!!
I am so happy that I understood how it works
Subscribed. Thanks for your efforts!
The video was pretty good, better than expected, however this isn't what exactly is happening but rather an overview.The gearbox is still in testing phase as per CVK.Also the pneumatic( not sure) solenoids are used for shifting between the gears which is electronically controlled via the ecu(most probably an transmission specific computing unit taking inputs of engine rpm)to shift faster.This is the only way the car could jump in between gears as CVK says in cruising conditions.Please upload the detailed version of the video as soon as the information is available.Will look forward to it!.
Interesting, thanks!
Great explanation
Wonderfully concise explanation. You earned yourself a new subscriber.
Wow its like a mountain bike gear.Friction and speed.
9 gear ratios but are they the same as the 21 speeds of a bike? Meaning that 2 or more compounds have the same final ratio?
Pedelaxel is 1:1 axel 1. 2 axel kan get 3 different ratios as the front 3 gearwheel on a bike. from 2 to 3rd Axerl Another 3 ratios give 3 more gearratios like the back gearwheels on a bike.
Those clutches look very serviceable. I hope they're rated to at least 50,000k of spirited driving.
for casual viewer its too complex, id like to see direct comparison. but other than that it sounds like u did a great job