Traction Control - BMW S 1000 XR Rider's Manual

brake application. This slows the
build-up of brake pressure to a
corresponding degree. Addition-
ally, pressure modulation is more
uniform across the range of ABS
intervention.
Advantages for the rider
The advantages of ABS Pro for
the rider are sensitive response
and high braking and directional
stability combined with best-case
deceleration of the motorcycle,
even when cornering.

Traction control

How does traction control
work?
Traction control is available in
two versions
without provision for the bank
angle: Automatic Stability Con-
trol ASC
ASC is a rudimentary function
intended to prevent falls.
with provision for bank angle:
Dynamic Traction Control DTC
DTC controls more comfortably
and is suitable for improving lap
times on the race track.
The traction control system com-
pares the speed of rotation at
the circumferences of the front
wheel and the rear wheel. The
differential is used to compute
slip as a measure of the reserves
of stability available at the rear
wheel. If slip exceeds a certain
limit, the engine management
system intervenes and adapts
engine torque accordingly.
WARNING
Risky riding.
Risk of accident despite DTC.
Invariably, it remains the rider's
responsibility to adapt riding
style to riding conditions.
Do not take risks that would
negate the additional safety
offered by this system.
Special situations
In accordance with the laws of
physics, the ability to accelerate
is restricted more and more as
the angle of heel increases. Con-
sequently, there can be a per-
ceptible reduction in acceleration
out of very tight bends.
The speeds of the front and rear
wheels are compared and DTC,
unlike ASC, also takes the bank
angle into account in processing
data to detect the rear wheel's
incipient tendency to spin or slip
sideways.
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