The DRC system (known as Audi Dynamic Ride Control) is a pure mechanical damping system which monitors road conditions and cornering forces and adjusts the suspension accordingly.
This advanced damping system counteracts movements of the vehicle along its longitudinal axis and transverse axis. Both shock absorbers on the same side of the vehicle are connected with the diagonally opposed dampers on the other side, each by means of one central valve.
How DRC works
When a corner is taken, a flow of oil, and thus a supplementary damping force, is generated via the central valve between the diagonally opposed shock absorbers. When the suspension is compressed on one side, the damper characteristic is modified in such a way that rolling or pitching movements are almost entirely eliminated.
As a result, this mechanically active damping system ensures that the vehicle maintains extremely good tracking stability when cornering and responds precisely to adjustments of the steering wheel.
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