What Makes an Air Bag Inflate?
In an impact of sufficient severity, the air bag sensing
system detects that the vehicle is in a crash. For both
frontal and side impact air bags, the sensing system
triggers a release of gas from the inflator, which inflates
the air bag. The inflator, the air bag and related hardware
are all part of the air bag modules. Frontal air bag
modules are located inside the steering wheel and
instrument panel. For vehicles with side impact air bags,
the air bag modules are located in the seatback closest
to
the driver’s and/or right front passenger’s door.
a
How Does an
Air
Bag 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. The air bag supplements the protection
provided by safety belts. Air bags distribute the force of
the impact more evenly over the occupant’s
upper body, stopping the occupant more gradually.
But the frontal air bags would not help you in many
types of collisions, including rollovers, rear impacts, and
many side impacts, primarily because an occupant’s
motion is not toward the air bag. Side impact air bags
would not help you in many types of collisions,
including frontal or near frontal collisions, rollovers, and
rear impacts, primarily because an occupant’s motion
is not toward those air bags. Air bags should never
be regarded as anything more than a supplement to
safety belts, and then only in moderate
to
severe frontal
or near-frontal collisions for the driver’s and right front
passenger’s frontal air bags, and only in moderate
to severe side collisions for vehicle’s with a driver’s and
right front passenger’s side impact air bag.
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