The Koenigsegg CC850 that debuted throughout August’s 2022 Monterey Automobile Week is a re-imagination of the Swedish agency’s first manufacturing automobile, and one of many highlights is a transmission like no different.
The CC850 makes use of a model of the 9-speed Gentle Pace Transmission from the Koenigsegg Jesko, however with a brand new Have interaction Shifter System (ESS) that makes the automated transmission rework right into a 6-speed handbook (it nonetheless maintains the complete computerized mode with 9 gears, although). This Engineering Defined video offers a deep dive into Koenigsegg’s reinvented handbook.
First, the mechanical variations. the ESS gearbox has a clutch pedal like a traditional handbook, but it surely’s by-wire, and as a substitute of 1 clutch, the ESS has seven. These clutches deal with gear choice, eliminating the necessity for shifter forks and synchros. It additionally lacks a flywheel, so the engine connects on to the transmission.
The clutches are unfold out throughout two shafts. in computerized mode, one clutch on every shaft engages to provide the facility a path to the rear wheels, whereas enabling all 9 ahead gears with out the necessity for what would in any other case be a really sophisticated shift mechanism. As with the clutch, the shifter is a by-wire system.
Within the CC850, the transmission will also be shifted manually by shifting a shift lever by means of gates, just like standard handbook gearboxes, whereas urgent the clutch pedal releases all seven clutches. Engagement nonetheless requires two clutches, however on this case a place sensor on the shifter controls the primary clutch, whereas foot strain on the clutch pedal controls the second clutch.
The ratio that corresponds to every gear quantity can even change relying on the drive mode. For instance, in observe mode the transmission will begin out with second gear’s ratio as first, however then swap to 3rd gear’s ratio when you get going. That successfully tightens up the ratio unfold with out having to bodily swap out gears.
As for reverse, it will depend on whether or not the automobile is being pushed in computerized or handbook mode. The motive force makes use of the clutch pedal for handbook mode, and does not for computerized mode. And the transmission is aware of when the automobile is in computerized mode as a result of reverse is positioned immediately above drive within the shift sample.
And whereas the clutch pedal is by-wire, with no mechanical connection to the numerous bodily clutches, it is designed to simulate the texture of an analog left pedal. That really feel is replicated by software program based mostly on parameters from a standard handbook. It should even authentically stall.
Meaning you get the comfort of an computerized and the texture of a handbook in a single transmission—one which’s lighter than a traditional handbook, Koenigsegg claims. Going from 9 obtainable gears in computerized mode to 6 in handbook mode may result in some large gaps between ratios, however even that’s handled by the tighter ratio set utilized in observe mode. Clients do not appear fearful about any potential drawbacks; Koenigsegg has already introduced that it is upping CC850 manufacturing to fulfill robust demand.