Koenigsegg Jesko

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SectorOne
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Koenigsegg Jesko

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Another monster from the bald madman. Lots of technical info,

"If the only thing keeping a person decent is the expectation of divine reward, then brother that person is a piece of sh*t"

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Phil
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Re: Koenigsegg Jesko

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That’s pure insanity. Thanks for sharing! :shock: :D
Not for nothing, Rosberg's Championship is the only thing that lends credibility to Hamilton's recent success. Otherwise, he'd just be the guy who's had the best car. — bhall II
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roon
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Re: Koenigsegg Jesko

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The engine has been re-designed to house a tumble valve on intake and individual pressure sensors for each cylinder in order to achieve real-time, precision monitoring of every cylinder - an industry first. Turbulent air provides a faster burn rate, which leads to more efficient and effective combustion, especially at lower rpm and during cold starts.

The Koenigsegg-designed air injection system comprises a small compressor and carbon fibre air tank. The patent-pending system provides a powerful 20-bar shot of air strategically located within the turbocharger system in order to pre-spool the turbochargers and provide instant response.

The new Koenigsegg V8 produces 1280hp on regular gasoline and an astonishing 1600hp on E85 - an available option in certain markets. Maximum torque increases to 1500 Nm at 5100rpm with 1000+ Nm available anywhere between 2700 to 6170rpm.

Light Speed Transmission (LST)

Koenigsegg Jesko's new Light Speed Transmission - designed in-house at Koenigsegg - is a 9-speed multiclutch unit that does away with traditional synch rings and makes changes between ANY gear possible at near light speed.

Modern DCT's typically have two clutches - one for even numbered gears and another for uneven numbered gears. One clutch/gear is engaged and driving while the control unit pre-selects what it anticipates is the next gear. This solution allows for fast gearchanges but comes with a significant weight penalty and the limitation of only changing to adjacent gears due to anticipation logic constraints.

The Koenigsegg LST allows the driver to change to the optimal gear for acceleration, regardless of that gear's relationship to the current gear. We call this system Ultimate Power on Demand.

For example, if you are in 7th gear and 4th gear is the optimal gear for maximum acceleration, the Koenigsegg LST will allow you to shift directly from 7th to 4th at lightning speed, without waiting for synchronisation. In a traditional DCT, a driver would have to shift through 6th and 5th gears before getting into 4th, a loss of precious time and momentum.

Traditional DCTs can weigh up to 140kg. The new Koenigsegg Light Speed Transmission weighs just 90kgs, including wet clutches, flywheel, fluids, starter motor and oil pumps. It also has an optimized, compact design resulting in a much smaller footprint. This ensures the drivetrain's weight is much more central to the vehicle, allowing more room for the advanced underfloor aerodynamics and the resulting lower yaw inertia for even more agile driving dynamics.

hurril
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Re: Koenigsegg Jesko

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So much to cause extreme arousal. That gearbox though, how does that work? Jesus christ, this is awesome :)

roon
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Re: Koenigsegg Jesko

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Image
Last edited by roon on Wed Mar 06, 2019 12:39 am, edited 1 time in total.

Just_a_fan
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Re: Koenigsegg Jesko

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hurril wrote:
Tue Mar 05, 2019 6:35 pm
So much to cause extreme arousal. That gearbox though, how does that work? Jesus christ, this is awesome :)
Epicyclics perhaps. Basically like an automatic gearbox.
Turbo says "Dumpster sounds so much more classy. It's the diamond of the cesspools." oh, and "The Dutch fans are drunk. Maybe"

bill shoe
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Re: Koenigsegg Jesko

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Thoughts on the tranny and Koenigsegg-

1. Autogyro finally got someone to use his transmission? You have to be old-school F1 Technical to understand this one.

2. Yes, as Just_a_fan says, a conventional planetary-gear automatic transmission provides precisely the capability to shift from any gear to any other gear directly/quickly/smoothly. The new tranny may be a relatively conventional planetary-gear auto, but with conventional clutche(s) up front in place of the traditional torque-converter. I would assume the planetary bit is an off-the-shelf transmission from someone.

3. Wasn't Koenigsegg bragging about their direct-drive (a.k.a. single-gear tranny) in their last car? How do they go from that to 9 (!!) speeds without blinking?

4. Whatever mild criticism I have of Koenigsegg, they are the real deal. They do consistently design, manufacture, and sell high-end road-legal sports cars. There are many wanna-be companies out there with press releases, videos, special prototypes, optimistic outlooks for the future, etc. Koenigsegg is doing it for real.

sosic2121
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Re: Koenigsegg Jesko

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bill shoe wrote:
Wed Mar 06, 2019 5:19 am
Thoughts on the tranny and Koenigsegg-

1. Autogyro finally got someone to use his transmission? You have to be old-school F1 Technical to understand this one.

2. Yes, as Just_a_fan says, a conventional planetary-gear automatic transmission provides precisely the capability to shift from any gear to any other gear directly/quickly/smoothly. The new tranny may be a relatively conventional planetary-gear auto, but with conventional clutche(s) up front in place of the traditional torque-converter. I would assume the planetary bit is an off-the-shelf transmission from someone.

3. Wasn't Koenigsegg bragging about their direct-drive (a.k.a. single-gear tranny) in their last car? How do they go from that to 9 (!!) speeds without blinking?

4. Whatever mild criticism I have of Koenigsegg, they are the real deal. They do consistently design, manufacture, and sell high-end road-legal sports cars. There are many wanna-be companies out there with press releases, videos, special prototypes, optimistic outlooks for the future, etc. Koenigsegg is doing it for real.
Jesko is replacment for Agera, 7 speed "dual clutch hard core" car.
Regera is more relaxed direct drive hybrid which is stil in production.

While there is little information on new gearbox, IMO it's probably some sort of automated manual gearbox.

Koenigsegg is a real deal for some time already. It's incredibly advanced in many areas and most importantly , it delivers!

Just_a_fan
Just_a_fan
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Re: Koenigsegg Jesko

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bill shoe wrote:
Wed Mar 06, 2019 5:19 am

1. Autogyro finally got someone to use his transmission? You have to be old-school F1 Technical to understand this one.
Blast from the past! 8) :lol:
Turbo says "Dumpster sounds so much more classy. It's the diamond of the cesspools." oh, and "The Dutch fans are drunk. Maybe"

Jolle
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Re: Koenigsegg Jesko

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Going from 7th to 4th only makes sense if you can select that :P with paddle shifting you still have to “click” past all the gears...

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Holm86
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Re: Koenigsegg Jesko

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Direct drive is more for their touring spec cars, and its totally dependend on electric motors too.

The jesko is not a hybrid car, so direct drive does not make sense.

The transmission works like the gears on a bike with 3 cogs on the imput side, and 3 cogs on the output side, making 3x3 ratios possible.

The shift paddles are 2 stage, push them half way and you get the next gear in the sequence, push it all the way and you get the gear with best output instantly, from 9'th to 4'th gear for instance ...

Arunas
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Re: Koenigsegg Jesko

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Image
Does not look, like being planetary.

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SiLo
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Re: Koenigsegg Jesko

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I assume direct drive just works better with a hybrid system which is why they developed this one for the Jesko. The gearbox itself was incredibly small though!
Felipe Baby!

hurril
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Re: Koenigsegg Jesko

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SiLo wrote:
Wed Mar 06, 2019 3:35 pm
I assume direct drive just works better with a hybrid system which is why they developed this one for the Jesko. The gearbox itself was incredibly small though!
There's really no comparison between the drive trains in those two cars. One is an electric direct drive akin to what a diesel-electric locomotive would have and the other is... not.

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SiLo
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Re: Koenigsegg Jesko

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hurril wrote:
Wed Mar 06, 2019 3:43 pm
SiLo wrote:
Wed Mar 06, 2019 3:35 pm
I assume direct drive just works better with a hybrid system which is why they developed this one for the Jesko. The gearbox itself was incredibly small though!
There's really no comparison between the drive trains in those two cars. One is an electric direct drive akin to what a diesel-electric locomotive would have and the other is... not.
Yeah it made sense in the Regera, in the Jesko it doesn't. Interesting to see if this gearbox takes off as a replacement for DCT across the industry though, it's certainly a lot smaller.
Felipe Baby!