Specifications

Audi magnetic ride

As an option, the customer can order the Audi TT RS with Audi

magnetic ride. This system is already available in the volume TT

model.

Functional principle

Circulating inside its damper pistons is a synthetic hydrocarbon

fluid containing minute magnetic particles between three and ten

micrometers in size.When voltage is applied to a coil, a magnetic

field is created in which the orientation of the particles changes.

Reference

You will find a detailed description of the design and function of the systems in Self-Study Programme 381 "Audi TT ’07 –

Suspension System".

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They cluster transversely to the direction of flow of the fluid, thus

inhibiting its flow through the piston channels. This alters the

damping characteristic within a matter of milliseconds.

Operating principle

The system's control unit constantly monitors the driver's style and

the condition of the road, adjusting its response accordingly.

The driver can change between the Normal and Sport modes at the

touch of a button. In Normal mode, when the fluid has a high vis-

cosity, the suspension of the Audi TT RS offers a well-balanced,

comfortable ride.

In Sport mode, when flow is inhibited, the suspension is uncom-

promisingly firm and the car hugs the road without so much as a

hint of body roll. The specific stabilisation of each wheel gives even

more neutral self-steering behaviour and steering response

becomes more precise.

Piston orifices

Magneto-rheological fluid in a non-

magnetised state

Magneto-rheological fluid in a mag-

netised state

Magnetic particles Magnetic field

Magnetic coil not activated Magnetic coil activated