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Daimler Communications, 70546 Stuttgart, Germany
Mercedes-Benz – A Daimler Brand
Page 14
AMG sports suspension and high-performance braking system
New standard in driving dynamics thanks to
Direct-Steer system, Torque Vectoring Brake and
Active Body Control with crosswind stabilisation
The AMG sports suspension and ADAPTIVE BRAKE high-performance
braking system are every bit a match for the effortlessly superior drive
units: the two top-of-the-line models, the S 63 AMG and S 65 AMG, raise
the bar in terms of driving dynamics thanks to new high-tech systems.
Less steering effort, more agile handling with the same outstanding straight-line
stability – the new Direct-Steer system in a nutshell, which is now fitted as stan-
dard on the S 63 AMG and S 65 AMG. A key feature of the Direct-Steer system is
the variable-ratio steering rack that operates using purely mechanical means.
While the power steering around the central position utilises an indirect ratio to
promote excellent straight-line stability, this alters from a steering angle of
around five degrees: really small steering angles are all it takes to perform precise
cornering, noticeably improving handling on winding country roads. The steering
angle requirements have also been modified, enabling the driver to steer the AMG
saloons far more easily, particularly on urban roads. Compared with a steering
system with a constant ratio, the number of revolutions from lock to lock is
reduced by around 25 percent with the Direct-Steer system.
Purely mechanical Direct-Steer system with a host of benefits
Another advantage of the purely mechanical Direct-Steer system is the absence of
any elaborate actuators and complex sensors – with associated benefits in terms
of weight, installation space and susceptibility to faults. The constant steering
response is also advantageous compared with other variable steering systems that
sometimes require the driver to adapt quickly to what are fast changing situations
on the road.