The air bags are the important thing to have in the car because they povide front ,sides and overhead protection for the driver and all the passengers. The air bags are active as soon as you are involved in an accident and it protects you from heavy injuries. For the front crash the air bag will only deploy only if it is more than 20k/h. The air bags could be single stage and dual stage. The single stage is when the air bag is deploys 100% when activated whereas the dual-stage air bag will deploy 70% of charge in the first stage of deployment the 30% will deploy if required.
Deployment of Air Bag during Front Collision
- Before deployment - the air bag is enclosed within the pad in the centre of the steering wheel.
- Deployment - the air bag assembly prduces a nitrogen gas to inflate the air bag. The expanding bag will split open the plastic trim of the steering pad. This allows the air bag to unfold and rapidly expand.
- Restraint - the air bag inflates fully in 30milliseconds, which is about as quick as the blink of an eye. The head and upper body of the driver are thrown forward by the crash and cushioned by the air bag.
Side Air Bags
They are mounted to the edge of the seat - back frame and secured by the studs and nuts. When deployed, the air bag bursts through its cover, then through the foam and fabric of the seat back to provide a cushion between the passenger and the side of the vehicle.
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