Tuesday, January 14




   The   present    topic   is    about  safety   airbags  in  cars. No safety    device   has  consumed  more  attention  and  resources  than  the  airbag. It  is  known  with  high  confidence  that  when  a crash  ours , the  presence  of  airbag  reduces    fatality  risk  to  drivers.


Air Bags have been under development for many years. The attraction of a soft pillow to land against in a crash must be very strong – the first patent on an inflatable crash-landing device for airplanes was filed during World War II.  In the 1980’s the first commercial air bags appeared in automobiles. Since 1988, all new cars have been required to have air bags on both driver and passenger sides .To date, Statistics show that air bags reduce the risk of dying in a direct frontal crash by 30 percent.  Newer than steering Wheel mounted or Dashboard-mounted bags, but not so widely used, are seat-mounted and door mounted side air-bags.  Some experts say that within the nest few years, our cars will go from having dual air bags top having six or even eight air bags.
 Main Parts Of Air Bag

There are three parts to an air bag that help to accomplish this feat:  

 v Sensor

 v Inflation system

Working Of Air Bags

Air Bags are designed to inflate in frontal or frontal-angle impacts in which the car strikes an immovable object at more than about 16 Kilometers per hour or another car at twice that speed.  After a collision, sensors sense an electric current to an igniter system or, in some cases, to the computerized control unit.  This unit evaluates the situation and then sends an electrical impulse to the igniter system.  The electric current heats a filament (wire), which then ignites a capsule………


The air bags are of greater importance in today’s vehicles since safety of human life is of prior importance.  Since the count of automobiles is increasing tremendously on our roads, the probability of accidents is also more.  So far a safe riding and for saving the precious life the safety bags must be implemented. 

Disarming The Airbag

Steps in disarming

•        Disconnect the battery

•        Wait 30 seconds.  The air Bag is equipped with a capacitor and it’s important to make sure that it is completely discharges before continuing.  Change the oil while waiting

Driver’s Side Airbag

The image below shows the parts of the airbag module in the steering wheel.  From top to bottom we have the cover, the airbag assembly, the retainer attached to the steering wheel, the steering wheel and the clock spring.


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