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Jesko
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  Koenigsegg Jesko
 

  Article Image gallery (12) Specifications  
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Country of origin:Sweden
Introduced in:2019
Introduced at:2019 Geneva Motor Show
Source:Company press release
Last updated:March 07, 2019
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Click here to download printer friendly versionJesko's new Light Speed Transmission - designed in-house at Koenigsegg - is a 9-speed multi-clutch 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.

Gearshifts are via either steering wheel paddles or the manual-style shifter located in the traditional central position. Both the paddles and shifter feature a double-notch shifting mechanism. The first notch shifts one gear up or down. Advancing to the second notch engages Ultimate Power on Demand - shifting the car to the optimum gear for maximum acceleration, regardless of that gear's relationship to the current gear - instantly.

At the core of every Koenigsegg is its carbon fibre monocoque chassis. Jesko features a monocoque that is 40mm longer and 22mm taller than its predecessor, allowing for more generous headroom and legroom. Importantly, it still retains every bit of its structural rigidity, measured at 65,000 Nm per degree. This supremely stiff and strong chassis allows Koenigsegg's engineers to concentrate on tuning the suspension for performance rather than compensating for suboptimal chassis dynamics.

Koenigsegg's F1-style elongated wishbones are retained and improved. These combine with the largest wheel bearings used in a road car today to provide the ultimate in responsiveness and feel. Fully adjustable damping from öhlins is tuned using bespoke electrics and controllers designed in-house at Koenigsegg.

Jesko redefines 'precision' thanks to an additional active Triplex damper added to the front suspension and a new rear-wheel steering system.

The Triplex system was first introduced in the Koenigsegg Agera in 2010. It used a third, horizontal damper built into the rear suspension to counter the car's tendency to 'squat' during hard acceleration with over 1000hp.

As Jesko comes equipped with and aerodynamics package providing over 1000kg of downforce, an additional Triplex damper has been incorporated into the front suspension to maintain an optimal ride height during high aerodynamic load without compromising grip at lower speeds. Both the front and the rear triplex dampers now incorporate active bump and rebound damping.

Koenigsegg has equipped Jesko with an adaptive, active rear steering system that increases responsiveness and heightens the senses at both high and low speeds. Using inputs such as individual wheel speed, steering angle, steering wheel angular velocity, engine speed, lateral acceleration, longitudinal acceleration and other parameters, the steering system can turn the rear wheels up to three degrees in either direction for quicker cornering, increased agility and stability.

Jesko's new optional carbon fibre wheels are the lightest and strongest production wheels of their size. Larger than the Agera RS wheels they replace, the front weighs just 5.9kg (20" x 9.5") and the rear 7.4kg (21" x 12").

Michelin Pilot Sport Cup 2 tires come as standard. These are the same tires that were used on the Agera RS to set 5 world speed records. Michelin's new Pilot Sport Cup 2 R tires are available as a dry-weather-only option. The all-new Pilot Sport Cup 2 R features a new tread pattern offering a 10% bigger contact patch and significant improvements in performance and grip.

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  Article Image gallery (12) Specifications