2015 FIAT DUCATO BASE CAMPER wheel torque

ABS
This is an integral part of the
braking system, which prevents
one or more wheels from locking or
slipping regardless of the road
surface conditions and braking
intensity, ensuring control of the
vehicle even during emergency
braking.
The system intervenes when
braking and the wheels are about
to lock, typically in emergency
braking or low-grip conditions,
when locking may be more
frequent.
The ABS ensures the direction of
the vehicle while braking and
optimises the braking distances at
the same time.
The system also improves control
and stability of the car when
braking on a surface where the grip
of the left and right wheels varies,
or when braking on corners.
The system is completed by EBD
(Electronic Braking Force
Distribution), which distributes the
braking action between the front
and rear wheels.IMPORTANT To obtain the
maximum efficiency of the braking
system, a bedding-in period of
about 500 km is needed: during
this period it is better to avoid
sharp, repeated and prolonged
braking.
50)
SYSTEM
INTERVENTION
The driver can feel that the ABS
has come into action because the
brake pedal pulsates slightly and
the system gets noisier: it means
that the car speed should be
altered to suit the type of road
surface.
51) 52) 52) 53) 54) 55) 56) 57)
MSR SYSTEM
(Motor Schleppmoment
Regelung)
This system is an integral part of
the ABS and intervenes, if there is
sudden downshifting, restoring
torque to the engine, thereby
preventing excessive drive at the
drive wheels which, especially
in poor grip conditions, could lead
to a loss in stability of the vehicle.
WARNING
50) The ABS exploits the grip
available to the full, but it cannot
improve it. Therefore, you should
take great care when driving on
slippery surfaces, without taking
unnecessary risks.
51) When the ABS intervenes and
you notice the brake pedal
pulsating, keep the pedal pushed
down and don’t be alarmed. This
will help you to stop in the
shortest distance possible,
depending on the road conditions.
52) If the ABS intervenes, it means
you have almost reached the grip
limit between the tyres and the
road surface: slow down to make
sure that you drive in accordance
with the available grip
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53) The ABS can’t overrule the
natural laws of physics, and can’t
increase the grip available
according to the condition of the
road.
54) The ABS cannot prevent
accidents, including those due to
excessive speed on corners,
driving on low-grip surfaces or
aquaplaning.
55) The capability of the ABS must
never be tested irresponsibly and
dangerously, in such a way as
to compromise personal safety
and the safety of others.
56) For the correct operation of the
ABS, it is essential that the tyres
are of the same make and type on
all wheels, in perfect condition
and, above all, of the specified
type and dimensions.
57) If the space-saver wheel (for
versions/markets, where
provided) is used, the ABS keeps
operating. Always remember
that the space-saver wheel, being
smaller than the original wheel,
provides less grip.ESC (Electronic
Stability Control)
SYSTEM
(for versions/markets, where
provided)
The ESC system improves the
directional control and stability of
the vehicle in various driving
conditions.
The ESC system corrects the
vehicle’s understeer and oversteer,
distributing the brake force on
the appropriate wheels. The torque
supplied by the engine can also
be reduced in order to maintain
control of the vehicle.
The ESC system uses the sensors
in the vehicle to determine the
trajectory required by the driver
through steering and compares it
with the real trajectory of the
vehicle. When the real trajectory
deviates from the desired trajectory,
the ESC system intervenes to
counter the car’s understeer or
oversteer.
❒Oversteer: occurs when the vehicle is
turning more than it should according
to the angle of the steering wheel.❒Understeer: occurs when the vehicle
is turning less than it should
according to the angle of the steering
wheel
The ESC system also includes the
following subsystems:
❒Hill Holder
❒ASR
❒HBA
❒ERM
❒HDC
58) 59) 60)
SYSTEM
INTERVENTION
This is signalled by the flashing of
warning light
in the instrument
panel, to inform the driver that
the vehicle is in critical stability and
grip conditions.
SYSTEM ACTIVATION
The ESC system switches on
automatically when the engine is
started and cannot be switched off.
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HILL HOLDER SYSTEM
This system is an integral part of
the ESC system and facilitates
starting on slopes.
It is automatically activated in the
following conditions:
❒uphill: vehicle stationary on a road
with a gradient higher than 5%,
engine running, brake pressed and
gearbox in neutral or gear (other than
reverse) engaged;
❒downhill: vehicle stationary on a road
with a gradient higher than 5%,
engine running, brake pressed and
reverse gear engaged.
When setting off, the ESC system
control unit maintains the braking
pressure on the wheels until the
torque necessary for starting is
reached, or in any case for a
maximum of 2 seconds, allowing
your right foot to be moved easily
from the brake pedal to the
accelerator.When two seconds have elapsed,
without starting, the system is
automatically deactivated, gradually
releasing the braking pressure.
During this release stage, the
typical brake disengagement noise
indicating that the vehicle is going
to move imminently will be heard.
IMPORTANT The Hill Holder system
is not a parking brake; therefore,
never leave the vehicle without
having engaged the handbrake,
turned the engine off and engaged
first gear, so that it is parked in
safe conditions (for further
information read the "Parking"
paragraph in the "Starting
and driving" chapter).
ASR (AntiSlip
Regulation) SYSTEM
It is an integral part of the ESC
system. It automatically operates in
the event of one or both drive
wheels slipping, loss of grip on wet
roads (aquaplaning) and
acceleration on slippery, snowy or
icy roads, etc.Depending on the slipping
conditions, two different control
systems are activated:
❒if the slipping involves both drive
wheels, the ASR intervenes reducing
the power transmitted by the engine;
❒if the slipping only involves one of the
drive wheels, it intervenes
automatically braking the wheel that
is slipping.
62)
Engagement/ disengagement of
the ASR system
The ASR system switches on
automatically each time the engine
is started.
Whilst driving, the ASR can be
switched off and subsequently
switched on again by pressing the
ASR OFF button fig. 125.
61)
On some versions, the intervention
of the system is indicated by a
message shown on the display.
When the system is not active, the
LED on the button ASR OFF turns
on and, on some versions, a
message appears on the display.
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TRACTION PLUS
SYSTEM
(for versions/markets, where
provided)
Traction Plus is a driving aid, useful
for setting off in poor grip
conditions on non-homogeneous
road surfaces (snow/asphalt,
ice/asphalt, mud/asphalt, etc.),
which allows the drive force to be
distributed adequately on the
engine axle when one of the two
drive wheels slips.
Traction Plus acts by braking the
wheel with poor grip (or slipping
more than the others), thereby
transferring the drive force to that
which has greater grip on the
ground.
This function can be activated
manually by pressing button A on
the dashboard fig. 127 and
operates under 50 km/h. When this
speed is exceeded, it is
automatically deactivated (the LED
on the button is still on) and it is
reactivated again when the speed
falls below 30 km/h.
67) 68)
Traction Plus
operation
The system is deactivated when
starting. To activate the Traction
Plus system, press button A fig.
127: the LED on the button
switches on.
The activation of the Traction Plus
system involves the following
functions being switched on:
❒inhibition of the ASR function, in
order to fully exploit the engine
torque;
❒the differential locking effect on the
front axle, through the braking
system, to improve traction
on irregular grounds.
If the Traction Plus system is faulty,
the
warning light on the
instrument panel switches on
constantly.
When travelling on snowy roads
with snow chains, it may be helpful
to turn the Traction Plus on and
thus inhibiting the ASR function: in
fact, in these conditions, slipping
of the drive wheels when moving off
makes it possible to obtain better
traction.
WARNING
67) The Traction Plus system acts
effectively only on road surfaces
that are not homogeneous and/or
differentiated between the two
drive wheels.
68) Until the setting off manoeuvre is
terminated, fully depress the
accelerator pedal in order to
transfer all the drive torque to the
wheel with the best grip.
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