Airbags are stretchable materials that are packed tightly in several locations inside your vehicle. They inflate and deploy at an extremely high speed in order to cushion the driver and passengers from death or serious injuries. The airbag system is a crucial aspect of your vehicle’s safety constituents. Its proper deployment could be the difference between life and death in the event of a crash for the vehicle’s occupants. Throughout the years, airbags have saved thousands of lives. Whereas they may not prevent total death or injury, they are very helpful in cushioning the travellers in a vehicle in the event of an accident.
The bag constitutes of a thin nylon material folded and stored in the steering wheel, dashboard, the door or seats. The bag is inflated and deployed in an accident to cushion car occupants, preventing them from being thrown around.
These are the essential components as far as airbag deployment is concerned. They are designed to detect when an accident happens by responding to some sets of stimuli such as increased pressure and sudden stopping. Two types of sensors commonly used are mechanical and electrical and vary in design and mechanism, although they both work towards a similar goal of airbag deployment.
If the control component determines there is an accident, it quickly sends an electrical signal to the inflator. The inflation system of the airbag reacts potassium nitrate (KNO3) with sodium azide (NaN3) to produce nitrogen gas, which fills the airbag. Once the airbag is filled up, it forces its way through the lining that contains it and protects you by filling the space between you and the car’s components such as door and the steering wheel.
The whole process occurs in an instant, normally within 25 milliseconds translating to nearly 200 miles per hour, which is faster than a crash occurs. The gas inside the airbag dissipates through minute holes in the bag after it deploys, deflating the bag to allow you to move.