2018 Audi A8 – intelligent Drive
Although the A8’s new chassis is good—there’s ample body control and isolation with the car’s standard air springs and adjustable dampers—the active-suspension models we drove weren’t yet fully baked. The optional Audi Intelligence (AI) active suspension, one component of a suite of intelligent features, includes an electric motor at each corner capable of raising or lowering that wheel via a torsion bar linked to the suspension.
In effect, there are two springs on each wheel of A8s equipped with the active suspension: an air spring and a torsion bar coupling the wheel carrier to the electric motor. The motors and torsion bars eliminate the need for traditional anti-roll bars by enabling roll control as well as managing pitch and dive.
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