Automatic Stability Control; (Asc) - BMW F 750 GS Special vehicle 2018 Rider's Manual

Safety reserves
9
BMW Motorrad ABS may not
mislead the rider into a careless
186
riding style because they can rely
on shorter stopping distances.
It is primarily there to provide
a safety reserve for emergency
situations.
Take care in bends! Braking in
bends is subject to particular
laws relating to the physics of
riding which even BMW Motorrad
ABS cannot evade.
Evolution of ABS to
ABS Pro
z OE
with ABS Pro
Until now, the BMW Motorrad
ABS helped ensure a very high
degree of safety for braking
with the motorcycle upright
and travelling in a straight line.
Now ABS Pro offers enhanced
safety for braking in corners
as well. ABS Pro prevents the
wheels from locking even under
sharp braking. ABS Pro reduces
abrupt changes in steering
force, particularly in panic-
braking situations, counteracting
the vehicle's otherwise natural
but undesirable tendency to
straighten up.
ABS intervention
Technically speaking, depending
on the riding situation ABS Pro
adapts ABS intervention to the
motorcycle's bank angle. Signals
for rate of roll and rate of yaw
and lateral acceleration are used
to calculate bank angle.
As the motorcycle is heeled over
more and more as it banks into
a corner, an increasingly strict
limit is imposed on the brake-
pressure gradient for the start of
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.
Automatic Stability
Control (ASC)
How does the ASC work?
BMW Motorrad ASC compares
the speeds of the front and rear
wheels. The differential is used
to compute slip as a measure of
the reserves of stability available
at the rear wheel. The engine
control intervenes and adapts the
engine torque accordingly if slip
exceeds a certain limit.