tle grip somewhat to achieve
a stable driving state again as
quickly as possible.
On a slippery surface, the throt-
tle grip should never be suddenly
turned back completely without
pull the clutch at the same time.
The engine braking torque can
cause the rear wheel to block,
resulting in an unstable driving
state. This case cannot be con-
trolled by the BMW Motorrad
ASC.
Tire Pressure Control
TPC/RDC
with Tire Pressure Control
(TPC/RDC)
OE
Function
A sensor is located in each tire,
which measures the air temper-
ature and the inflation pressure
inside the tire and sends these
values to the control unit.
The sensors are equipped with
a centrifugal controller, which
does not enable the transmis-
sion of the measured values until
after a speed of approx. 18 mph
(30 km/h) is exceeded for the first
time. Before initial reception of
the tire inflation pressure, -- is
shown in the display for each tire.
The sensors continue to transmit
the measured values for approx.
15 minutes after the motorcycle
comes to a stop.
The control unit can manage four
sensors, and as a result two sets
of wheels with TPC/RDC sen-
sors can be driven. If a TPC/RDC
control unit is installed, however
the wheels have no sensors, then
an error message is output.
Tire inflation pressure
ranges
The TPC/RDC control unit distin-
guishes between three inflation
pressure ranges matched to the
motorcycle:
Inflation pressure within the
permissible tolerance.
Inflation pressure at the limits
of the permissible tolerance.
Inflation pressure outside the
permissible tolerance.
Temperature
compensation
The tire inflation pressure is tem-
perature dependent, i.e. it in-
creases or decreases together
with the tire temperature. The
tire temperature is dependent on
the ambient temperature and on
the driving style and duration.
The tire inflation pressures are
shown temperature-compen-
sated in the multifunction display;
they refer to a tire temperature
6
82
z
Technology in detail
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