Audi quattro with sport differential

The new quattro with sport differential in the Audi S4 lifts driving dynamics to a new level.

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Audi A8 (2018) The Most High-Tech Car Ever? – DEMONSTRATION
With more than 40 driver assistance systems, the new 2018 Audi A8 becomes the new gold standard among the competition. The video shows the Audi AI remote parking pilot, Audi AI remote garage pilot, manoeuvre assist, pre sense side, cross traffic assist, active suspension, elevated entry and exit and rim protection. If you love cars you should subscribe now to YouCar the world famous automotive channel: https://goo.gl/5i54Vg





Audi - Sports Differential Working
Sport differential The self-locking center differential in the classic quattro drivetrain does an excellent job of distributing the power between the axles. To make driving even more dynamic, Audi introduced an additional component in the dynamic S4 Sedan in late 2008 that actively splits the torque between the wheels of the rear axle – the sport differential. The sport differential is a state-of-the-art rear differential. A superposition gear comprising two sun gears and an internal gear was mounted on the left and the right of a conventional rear differential. It turns 10 percent faster than the drive shaft. A multi-plate clutch in an oil bath and operated by an electrohydraulic actuator provides the power connection between the shaft and the superposition gear. When the clutch closes, it steplessly forces the higher speed of the superposition stage on the gear. Being forced to turn faster results in the additional torque required being drawn off from the opposing wheel on the inside of the curve via the differential. In this way nearly all of the torque can be directed to one wheel. The maximum difference between the wheels is 1,800 Nm (1,327.61 lb-ft). The sport differential is just as effective while coasting as it is under load. It is electronically controlled and reacts within a few hundredths of a second. Audi developed the software itself. The controller quickly and constantly recalculates the ideal distribution of the forces for each driving situation as a function of the steering angle, yaw angle, lateral acceleration, speed and other information. Vehicles with conventional axle drives tend to understeer in fast corners. With the sport differential, it is like riding on rails. When turning into or accelerating in a curve, the majority of the torque is directed to the outside wheel, pushing the car into the curve. The system thus nips any tendency toward oversteer or understeer in the bud.





Understanding Limited Slip Differential
Help us to make future videos for you. Make LE's efforts sustainable. Please support us at Patreon.com ! https://www.patreon.com/LearnEngineering This video is aimed at giving a clear explanation on working of LSD with help of animation. Working of clutch pack based LSD is elaborated here. Like us on FB : https://www.facebook.com/LearnEngineering





Audi Supercharger Technology
Alongside Exhaust gas turbochargers, Audi also makes use of Superchargers to Boost its engines. A Supercharger is used in the 3.0 TFSI. The high-efficiency mechanical charger is situated in the 90-degree V formed by the cylinder banks and is driven by the engine via a poly-V belt. The gas pathways downstream of the charger are very short, thus the torque develops quickly and easily. The full Boost is available even at idle. http://www.eurocarnews.com/29/0/1322/0/video-audi-Supercharger-technology.html




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