In order to ensure that the airbags open at the appropriate time, the automobile manufacturers have stipulated the conditions for the air bags to explode. Only when these conditions are met, the air bags will explode.
Although in some traffic accidents, the occupant of the car hit the head broken and bleeding, and even appear in danger of life, the vehicle is close to scrapped, but if the condition of the airbag explosion is not reached, the airbag will not open.
Airbag deployment requires the right speed and impact Angle.
Theoretically speaking, only when the vehicle hits a fixed object at a position of about 60¡ã in front of it and the speed is higher than 30KM/h can the airbag be opened.
The speed mentioned here is not the speed we usually understand, but the speed of the collision of the vehicle with rigid fixed obstacles in the laboratory. Only when the speed of the car is higher than the test speed in the actual collision can the airbag be opened.
In order to buffer the impact of the collision, the front part of the body is mostly designed with a collision buffer, and the stiffness distribution of the body is not uniform.
In some accident, for example, when a car with no rear protection device of the truck into the crash, or rollover accident occurred after car collision fence, or the body side impact, etc., such accidents often do not have a direct impact in the front of the car body, mainly is the upper body and side collision, a collision parts of the car body stiffness is very small, although the car tank deformation occurred,
People in the car are injured or killed, but sometimes the airbags don’t deploy because they hit the wrong place.
Especially in the lateral collision, if the side airbag is not configured, the primary and secondary airbags cannot detonate because they cannot reach the initiation condition.
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