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Engine Management
7
with Dynamic Traction
Control
110
How does DTC work?
with Dynamic Traction Control
OE
(DTC)
BMW Motorrad DTC compares
the wheel speeds of the front
and rear wheels. From the speed
difference the slip, and with it
the stability reserves on the rear
wheel are determined. When a
slip limit is exceeded, the engine
torque is adapted by the engine
management system.
Even with DTC, the laws of
z
physics cannot be overrid-
den. The rider is always respon-
sible for adapting his/her driving
style.
Do not reduce the additional
safety provided with risky
driving.
Special situations
with Dynamic Traction Control
(DTC)
OE
As lean angles increase, accel-
eration potential is also progres-
sively restricted by the laws of
physics. This can result in re-
duced acceleration when coming
out of very tight curves.
To detect spinning or slipping
away of the rear wheel, the
speeds of the front and rear
wheel are compared and the
angle is considered, for example.
If these values are detected to
be implausible for a long period,
a replacement value is used for
the angle and the DTC function
is deactivated. In these cases,
a DTC error is displayed. The
condition for a fault code is the
completed self-diagnosis.
In the following unusual driving
conditions, the BMW Motorrad
DTC can be automatically deacti-
vated.
Unusual driving conditions:
Riding on the rear wheel (per-
forming Wheelies) for an ex-
tended period with the DTC
deactivated.
Spinning the rear wheel on the
spot with the front brake ap-
plied (Burn Out).
Heating up on an auxiliary
stand at idle speed or with gear
engaged.
If the front wheel loses contact
with the ground under extreme
acceleration, the DTC reduces
the engine torque until the front
wheel makes contact with the
ground again.
In this case, BMW Motorrad rec-
ommends turning back the throt-
tle grip somewhat to achieve
a stable driving state again as
quickly as possible.
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