Electronic Engine Management With Bmw Motorrad Dtc; Dtc - BMW HP4 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
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 engine control
intervenes and adapts the engine
torque accordingly.
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.
DTC customisation
In SLICK mode, the behaviour
of the DTC can be customised.
Out on the track, as tyre wear
progresses you can fine-tune
DTC to continue riding close
to the physical limits, and
you can also adapt system
response to tyres not tested by
BMW Motorrad.
Based on the standard settings,
the moment of DTC intervention
can be brought forward seven
levels or pushed back seven
levels. The earlier the interven-
tion, the better the cornering.
With later intervention, drive is
improved at the expense of cor-
nering, until tyre adhesion is ex-
ceeded.
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 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
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