BMW Motorrad S 1000 R, Руководство пользователя для мотоциклиста

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the rear wheel. If slip exceeds a
certain limit, the engine control
intervenes and adapts the engine
torque accordingly.
What is the design
baseline for
BMW Motorrad ASC?
BMW Motorrad ASC is an assist-
ant system for the rider for use
on public roads. The extent to
which the rider affects ASC con-
trol can be considerable (weight
shifts when cornering, items of
luggage loose on the motor-
cycle), especially when style of
riding takes rider and machine
close to the limits imposed by
physics.
The system is not optimised for
special requirements that apply
under extreme competitive situ-
ations off-road or on the race
course. The BMW Motorrad
ASC can be deactivated in these
cases.
Even ASC is constrained by
the laws of physics. Invari-
ably, the rider bears responsibil-
ity for assessing road and traffic
conditions and adopting his or
her style of riding accordingly.
Do not take risks that would neg-
ate the additional safety offered
by this system.
Special situations
In accordance with the laws of
physics, the accelerating ability
is restricted more and more as
the heel angle 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 as
one means of detecting the rear
wheel's incipient tendency to
spin or slip sideways. If the sys-
tem registers implausible values
for a lengthy period the ASC
function is deactivated for safety
reasons and an ASC fault mes-
sage is issued. Self-diagnosis
has to complete before fault
messages can be issued.
The following exceptional
riding conditions can lead to
an automatic shutdown of the
BMW Motorrad ASC:
Riding for a lengthy period with
the front wheel lifted off the
ground (Wheelie).
Rear wheel rotating with the
vehicle held stationary by ap-
plying the front brake (Burn
Out).
Heating up with the motorcycle
on the centre stand or an auxil-
iary stand, engine idling or with
a gear engaged.
If the front wheel lifts clear of the
ground under severe accelera-
tion, the ASC reduces engine
torque until the front wheel re-
gains contact with the ground.
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z Engineering details
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