Ppc (Predictive Powertrain Control); Setting A Specified Distance To The Vehicle In Front - Mercedes-Benz Actros 2017 Operating Instructions Manual

Driving systems
282
Setting a specified distance to the vehicle
in front
The minimum distance for the distance control
assistant can be set to 5 levels. If you restart the
engine, the mean specified distance is available
for selection.
Make sure that you maintain the minimum dis-
tance to the vehicle in front required by law.
Adjust the specified minimum distance to the
vehicle in front if necessary.
X
Press the Ù button repeatedly until the
distance
input window appears in the on-
board computer.
X
Press the r or s button to reduce or to
increase the specified minimum distance.
The bar display shows the specified minimum
distance you have selected.
X
Press the 9 button to exit the input window.
or
X
Wait for approximately 3 seconds.
The setting is stored automatically.
Setting the speed tolerance
Set the speed tolerance (
Driving
It is possible to exceed the set speed, e.g. when
overtaking:
X
Maintain a sufficient distance to the vehicle in
front.
X
Depress the accelerator pedal.
X
When the overtaking manoeuvre is finished,
release the accelerator pedal again.
The distance control assistant adjusts the
speed to the set speed.
ACC
Y
page 283).
Deactivating
The speed remains stored if you deactivate the
distance control assistant.
X
Press the o button.
or
X
When the distance control assistant acceler-
ates the vehicle, depress the brake pedal.
The on-board computer shows the É sym-
bol and the set speed in grey.
or
X
Select the speed limiter with the È button.
The on-board computer shows the È sym-
bol in grey.
or
X
Select cruise control with the é button.
The on-board computer shows the é sym-
bol and the set speed in white. Cruise control
Y
is activated ( page 277).
Observe the conditions that lead to automatic
deactivation of the distance control assistant
Y
( page 279).

PPC (Predictive Powertrain Control)

Example: speed tolerances display
PPC uses topographic map data to optimise fuel
consumption and to adjust output according to
operating conditions. PPC influences gear
selection and adjusts the speed of cruise control
or distance control assistant. The speed adjust-
ment facilitates better utilisation of momentum
accumulated on downhill gradients. On uphill
gradients, the power output is optimised and
may be reduced before the top of the hill is
reached. You can adjust the speed tolerances in
Eco-Drive
the menu window (
Y
page 283).