Electronic Engine Manage; Dtc - BMW S 1000 RR Rider's Manual

Reserves for safety
The potentially shorter braking
distances which BMW Motorrad
Race ABS permits must not be
used as an excuse for careless
riding. ABS is primarily a means
of ensuring a safety margin in
genuine emergencies.
Take care when cornering. When
you apply the brakes on a corner,
the motorcycle's weight and
momentum take over and even
BMW Motorrad Race ABS is un-
able to counteract their effects.
Electronic engine
management with BMW
Motorrad DTC
with BMW Motorrad DTC
How does DTC work?
The BMW Motorrad DTC com-
pares the speed of rotation of the
front wheel and the rear wheel.
The differential is used to com-
pute slip as a measure of the
reserves of stability available at
the rear wheel. If slip exceeds a
certain limit the electronic engine
management system intervenes,
adapting engine torque accord-
ingly.
Even DTC is constrained
by the laws of physics. In-
variably, the rider bears respons-
ibility for assessing road and
traffic conditions and adopting
his or her style of riding accord-
ingly.
Do not take risks that would neg-
ate the additional safety offered
by this system.
Special situations
OE
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 the
angle of heel taken into account
as one means of detecting the
rear wheel's incipient tendency to
spin or slip sideways. If the elec-
tronic processor receives values
that it considers implausible over
a lengthy period, a dummy value
is used for the angle of heel or
the DTC function is switched off.
Under these circumstances the
indicator for a DTC fault shows.
Self-diagnosis has to complete
before fault messages can be is-
sued.
The BMW Motorrad DTC can
shut down automatically under
the exceptional riding conditions
outlined below.
Exceptional riding
conditions:
Riding for a lengthy period with
the front wheel lifted off the
ground (wheelie) and DTC de-
activated.
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