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AIRBAG
The airbag system on the New Ducato FL includes:
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Restraint system electronic control unit
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Front airbag on driver side with dual stage activation
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Front airbag on passenger side (OPT), single-stage
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Side bags (OPT), comprising instantly inflating bags housed in the side section of the seat
backrests
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Window bags (OPT) located behind the side roof linings and covered by dedicated trims for
protecting the head of front occupants in the event of side impact.
Restraint system electronic control unit
This represents the heart of the occupant protection system and is located on the front tunnel. It
simultaneously manages all the restraint system detection and activation devices, processing the
signals from the various sensors in the vehicle and fitted inside it, and decides which and how many
protection devices to activate in the event of an accident.
It can also prevent their activation when the impact is not of sufficient severity, that is, when there is no
risk that the occupant comes into contact with other parts of the vehicle, or when it recognises
considerable stress on the body that is not due to impact.
A capacitor, which operates as a reserve of energy, ensures the full functionality of the front airbags
and pretensioners, even when supply from the electrical system is absent (when, for example, the
impact breaks the battery or supply cables). The algorithm used for frontal impact situations is called
the "Crash Severity Algorithm", since it can distinguish whether the impact is of medium or high
severity, so as to order the activation of the driver's dual-stage front airbag as appropriate. This means
that when the impact is of moderate severity, the electronic control unit controls only the first airbag
activation stage to avoid emitting unnecessary energy for the occupant's protection. Conversely, in the
case of very severe impact, the control unit activates both stages to absorb most of the kinetic energy
from the occupant's body before it strikes the steering wheel or dashboard.
Front airbag on driver side with dual stage activation
This consists of an instantly inflating bag contained in a special compartment in the centre of the
steering wheel (cover). It has a capacity of 60 litres.
Passenger side front airbag (opt)
This comprises an instantly inflating bag housed in a special compartment in the dashboard with a
larger bag than on the driver's side, in order to protect both occupants if the cab has a two-seater
bench. It has a capacity of 120 litres.
The side protection system
To increase the protection offered by the body and by the interior trim in side impacts, the front seats
may, as an option, feature side bags to ensure chest protection. They are joined by two window bags
fitted on the side members under the roof. These too are available as an option.
In this case too, the side impact sensors located on the vehicle's pillars permit the impact to be
detected rapidly and the electronic control unit that controls the bags to be activated.
The side bags comprise instantly inflating bags housed in the side of the seat backrest and protect
the chest of occupants in the event of a side impact of medium–high severity. Their installation on the
seat always guarantees maximum efficiency irrespective of the position.
The window bags are housed behind the roof side linings and are covered by special trims. Window
bags have been designed for protecting the head of front occupants in the event of side impact,
thanks to the wide bag inflation surface.
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