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Passive Safety

Autoliv accounts for almost every major technological breakthrough within passive safety over the last 20 years.

The term “passive safety” refers to products that protect occupants during a crash; primarily airbags and seatbelts.  

 

What happens in a crash?

 
When a collision occurs, occupants not wearing seatbelts continue to move forward at the vehicle's pre-crash speed until they make contact with the vehicle's interior (the steering wheel, instrument panel, windscreen, etc.) Belted occupants come to a more gradual stop by being secured directly to the vehicle's structure. In severe crashes, even properly belted occupants may come into contact with the vehicle's interior.

In severe crashes the seatbelt system can be enhanced with modern features such as pretensioners, that tighten the belts in an event of a crash. Airbags supplement the seatbelt by reducing the chance that the occupant's head and upper body will strike some part of the vehicle's interior. By distributing crash forces more evenly across the occupant's body they also help reduce the risk of serious injury.

During a moderate to severe frontal crash an electrical impulse is sent to the airbag inflator, which produces a non-toxic gas to fill the airbag cushion, deploying it through the module cover.
From the beginning of the crash, the entire deployment and inflation process takes about 1/20th of a second, which is roughly half the time of the blink of an eye.
In the menu to the right you can learn more about Autoliv’s passive safety products that save 30,000 lives a year.

 

Airbags


Airbags inflate quickly during a crash. Their purpose is to cushion occupants and provide protection to their bodies before they strike interior objects such as the steering wheel or the instrument panel. Modern vehicles may contain multiple airbags in various side and frontal locations.

 

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Seatbelts

 
It is estimated that more than a million people have been saved since seatbelts were first introduced into automobiles in the 1950s.
 
 
 
 

What happens when: frontal impact

What happens when: side impact