Chevrolet 2008 Uplander Spezifikationen PDF herunterladen (Seite 87)

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101

In any particular crash, no one can say whether an

airbag should have inﬂated simply because of the

damage to a vehicle or because of what the repair costs

were. For frontal airbags, inﬂation is determined by

what the vehicle hits, the angle of the impact, and how

quickly the vehicle slows down. For seat-mounted

side impact airbags, deployment is determined by the

location and severity of the side impact.

What Makes an Airbag Inﬂate?

In a deployment event, the sensing system sends

an electrical signal triggering a release of gas from

the inﬂator. Gas from the inﬂator ﬁlls the airbag

causing the bag to break out of the cover and deploy.

The inﬂator, the airbag, and related hardware are

all part of the airbag module.

Frontal airbag modules are located inside the steering

wheel and instrument panel. For vehicles with

seat-mounted side impact airbags, there are airbag

modules in the side of the front seatbacks closest

to the door.

How Does an Airbag Restrain?

In moderate to severe frontal or near frontal collisions,

even belted occupants can contact the steering wheel

or the instrument panel. In moderate to severe side

collisions, even belted occupants can contact the inside

of the vehicle.

Airbags supplement the protection provided by safety

belts. Frontal airbags distribute the force of the

impact more evenly over the occupant’s upper body,

stopping the occupant more gradually. Seat-mounted

side impact airbags distribute the force of the impact

more evenly over the occupant’s upper body.

But airbags would not help in many types of collisions,

primarily because the occupant’s motion is not

toward those airbags. See When Should an Airbag

Inﬂate? on page 1-82 for more information.

Airbags should never be regarded as anything more

than a supplement to safety belts.

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