Air-bag System (SRS) refers to a Supplementary Restraint System installed on the car. It is used to pop out at the moment of collision, protecting the safety of drivers and passengers. Generally speaking, when encountering a collision, the head and body of the passenger can be avoided and directly impacted into the interior of the vehicle to reduce the degree of injury. Airbag has been stipulated as one of the necessary passive safety devices in most countries
The main/passenger airbag, as the name suggests, is a passive safety configuration that protects the front passenger and is often placed in the center of the steering wheel and above the attached glove box.
Working principle of air bag
Its working process is actually very similar to the principle of a bomb. The gas generator of the air bag is equipped with "explosives" such as sodium azide (NaN3) or ammonium nitrate (NH4NO3). When receiving the detonation signal, a large amount of gas will be generated instantly to fill the whole air bag