wheel torque Abarth Punto Evo 2010 Owner handbook (in English)

89
KNOWING
YOUR VEHICLE
SAFETY
STARTING
AND DRIVING
WARNING LIGHTS
AND MESSAGES
IN AN
EMERGENCY
MAINTENANCE
AND CARE
TECHNICAL
SPECIFICATIONS
CONTENTS
HILL HOLDER SYSTEM
This system is an integral part of the ESP system and it is
provided to facilitate 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 pedal
depressed and gearbox in neutral or gear other than
reverse;
❒downhill: vehicle stationary on a road with a gradient
higher than 5%, engine running, brake pedal pressed
and reverse gear engaged.
When setting off, the ESP system control unit maintains
the braking pressure at the wheels until the engine
torque required for departure is reached, or for a
maximum of 1 second, allowing your right foot to be
moved easily from the brake pedal to the accelerator.
If the vehicle has not departed after this time, the
system will deactivate automatically, gradually releasing
the brake force.
At release, the typical brake disengagement noise
indicating that the car is going to move will be heard.Failure indications
A system fault is indicated by the switching on of the
warning light áand by the dedicated message on the
reconfigurable multifunction display (see section
“Warning lights and messages”).
IMPORTANT The Hill Holder system is not a parking
brake; therefore, never leave the car without having
engaged the handbrake, turned the engine off and
engaged first gear.
For the correct operation of the ESP and
ASR systems, the tyres must be the same
make and type on all wheels, in perfect
condition and, above all, of the type, make and
size specified.
WARNING
069-108 GPUNTO EVO Abarth GB 2ed 23-04-2010 13:36 Pagina 89

91
KNOWING
YOUR VEHICLE
SAFETY
STARTING
AND DRIVING
WARNING LIGHTS
AND MESSAGES
IN AN
EMERGENCY
MAINTENANCE
AND CARE
TECHNICAL
SPECIFICATIONS
CONTENTS
MSR system (engine drive regulation)
This is an integral part of the ASR system that, in the
event of sudden gear shifting on hills, cuts in to provide
torque to the engine, thus preventing excessive driving
wheel drag that, especially in poor grip conditions, can
lead to loss of stability.
TTC system (self-locking differential effect)
The TTC system uses the braking system to produce
a behaviour similar to a limited slip differential.
The front braking system, during acceleration while
cornering, acts on the inner wheel, increasing the drive
of the outer wheel (with more load) and distributing the
torque between the front drive wheels dynamically and
continuously according to the driving conditions and the
road surface.
In this way, the system allows particularly effective and
sporty driving to be achieved.
The TTC system intervenes activating the Sport driving
mode of the “Manettino Abarth” system (see the
“Manettino Abarth car dynamic control system (DSS
– Driving Sport Switch)” paragraph in this section).
When the TTC system is active, the ASR system
calibration is changed and made less intrusive.
Do not take unnecessary risks, even if
your vehicle is fitted with this system.
Your driving style must always be suited to the
road conditions, visibility and traffic.
The driver is always responsible for road safety.
WARNING
When travelling on snowy roads with snow chains, it
may be helpful to have the ASR system less intrusive
(activating the Sport driving mode): in these conditions,
the slipping of the drive wheels when setting off makes it
possible to have better traction.
069-108 GPUNTO EVO Abarth GB 2ed 23-04-2010 13:36 Pagina 91