While you have surely heard about airbags at some point in your life, many people don’t understand exactly what they are or how they work.
An airbag is an inflatable module that activates in an instant during a crash. Made up of four important components, it is so much more than a durable balloon.
The first part of any airbag system is the cushion. This is what helps prevent severe - potentially deadly - damage to the occupant's body parts. Next is the fabric bag. Just like the name suggests, this flexible material contains the cushion. Then there is also an inflation module that pumps the cushion full of air when an accident occurs. Finally, the impact sensor will detect a collision and trigger the system to engage.
The sensor is a crucial part of the device. It can determine the type of incident that is happening, the angle at which it occurs, and the degree of severity.
Invented in the 1970s, airbags are required for all modern vehicles. Most cars, trucks, vans, and SUVs have at least six placed strategically throughout the cabin. The most common types are multistage front, supplemental side-curtain, and knee blocker units.