The new Audi A8 proves itself a versatile performer on the road. Thanks to its active suspension, it provides comfort-oriented customers with a chauffeur-driven sedan offering a stylishly smooth ride. The enthusiastic owner-driver can relish the characteristics of a sports car. This flexibility is made possible thanks to the new active suspension based on the 48-volt electrical system, which is used for the first time as the main electrical system. The new Audi A8 makes its world debut at the Audi Summit in Barcelona on July 11.
The all-new active suspension on the Audi A8 is a fully active, electromechanical suspension system, which drives each wheel individually and adapts to the prevailing road conditions. Each wheel has an electric motor which is powered by the 48-volt main electrical system. Additional components include gears, a rotary tube together with internal titanium torsion bar and a lever which exerts up to 1,100 Nm (811.3 lb-ft) on the suspension via a coupling rod.
Thanks to the front camera, the luxury sedan detects bumps in the road early on and predictively adjusts the active suspension. Even before the car reaches a bump in the road, the preview function developed by Audi transmits the right amount of travel to the actuators and actively controls the suspension. In this way the suspension reacts precisely at the right time, virtually completely eliminating any vibrations and jolts. This complex process takes just a few milliseconds, with the camera generating information about the road surface condition 18 times a second. The electronic chassis platform (ECP) processes the road surface information and precisely controls all suspension components almost in real time. In conjunction with the air suspension fine-tuned for the A8, the innovative suspension concept delivers an entirely new driving experience in this way. Irrespective of the high level of comfort, the new luxury sedan sits close to the road even with a dynamic driving style.