Transcript Supplemental Restraint Systems

Supplemental Restraint
Systems
South Stokes High School
1100 South Stokes High Drive
Walnut Cove NC, 27052
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Front air bags have saved 13,967
lives between 1987 and 2003
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NTSHA
(National Highway Traffic Safety Administration)
Air bag basics
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Air bags are supplemental restraints and
are designed to work in combination with
safety belts.
Both frontal and side-impact air bags are
designed to deploy in moderate to severe
crashes
Air bag basics
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A "moderate or severe" crash
Is a crash equivalent to hitting a solid,
fixed barrier at 8 to 14 mph or higher.
This would also be equivalent to
striking a parked car of similar size at
about 16 to 28 mph or higher.
Air bag basics
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An igniter in the inflator starts a chemical
reaction that produces a gas (nitrogen or
argon) that fully inflates the air bag in less
than 1/20th of a second.
Because air bags deploy very rapidly, serious
or sometimes fatal injuries can occur if the
occupant is too close to, or is in direct contact
with, the air bag when it first begins to
deploy
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NOTE: nitrogen and argon is harmless
Most system use 3
crash sensors.
When 2 crash sensor close an electrical current
is sent to the inflator module.
The air bag system ignites a solid propellant,
which burns extremely rapidly to create a large
volume of nitrogen gas to inflate the bag.
NOTE: Air bags works
similar to a solid
rocket booster
Air bag basics
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Nontoxic cornstarch or talcum powder is
often used to aid air bag deployment. It
is the "smoke" you may have seen
released into a vehicle's interior in
demonstrations.
Talcum power and cornstarch can cause
some skin irritation in some people.
Law and Air Bags
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Front Air bag are required by federal law on
all vehicle produced after1998.
For information on deactivating an air bag
check:
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http://dms.dot.gov (docket #3111)
Certain identifiable groups can get
authorization to deactivate air bags.
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Small children
Elderly
Certain medical condition
Occupants
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Air bags reduce the chance that an
occupant's upper body or head will strike the
vehicle's interior during a crash.
To avoid an air bag-related injury, always
ensure proper seating position.
Read your owner's manual for specific
information about the air bags in your
vehicle.
Occupants
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All occupants should be properly restrained
with either a safety belt or the proper
child safety restraint, whether or not the
vehicle has air bags.
Serious or even fatal air bag-related
injuries can occur if occupants are not
properly restrained and in a proper
seating position.
Occupants
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Unrestrained or improperly restrained
occupants will move forward during the hard
braking before a crash.
In addition to striking the interior of the
vehicle, these occupants are very likely to be
on top of the air bag as it begins to inflate.
Occupants
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For properly restrained occupants, most air
bag injuries are minor cuts, bruises or
abrasions and are far less serious than the
head trauma injuries that air bags can
prevent.
All occupants, should maintain at least 10
inches between your breastbone and the
center of the steering wheel.
Children
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Never place an infant in a rearfacing child safety seat in the front
seat of a vehicle with an active front
passenger air bag.
To minimize injury risks, NHTSA
recommends that children not lean or
rest against chest-only or head/chest
combination side air bags
Children
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If small children must ride in the front
seat the front air bags switch should be
turned off.
Move the seat as far back as possible
Ensure children are properly restrained
according to age and size
Air Bag Quiz
1. Children 8 to12 years should ride:
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A. In the front seat properly restrained
B. In a child safety seat
C. In the back seat properly restrained
D. Without safety belts
Air Bag Quiz
2. How far should occupants set from an
air bag?
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A. 18 inches
B. 24 inches
C. 10 inches
D. 6 inches
Air Bag Quiz
3. How fast is a moderate to Sevier
crash?
A. 24-30 mph
B. Above 30 mph
C. 18-22 mph
D. 8- 14 mph
Air Bag Quiz
4. How fast will an air bag deploy?
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A. 1/20 second
B. 1/30 second
C. ½ second
D. 1 second
Air Bag Quiz
5. You can find specific information about
the air bags in your vehicle.
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A. Glove box
B. Owner manual
C. Engine compartment
D. Specification manual
Air Bag Quiz
6. When should small children be placed
in the front seat facing backward?
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A. When on a long trip
B. When driving under 30 MPH
C. When air bag is activated
D. Never
Air Bag Quiz
7. Unrestrained or improperly restrained
occupants will move __________ during
a crash.
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A. Backward
B. Down
C. Forward
D. Up
Air Bag Quiz
8. Technician A says the smoke that is seen
after an airbag deployment is Hazardous.
Technician B says the smoke seen after an
air bag deployment is the results of
cornstarch and talcum powder. Who is
correct?
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A. Technician A only
B. Technician B only
C. Both A and B
Neither A nor B