►Audi Q7 ►Safety ►Airbag system ◀Head-protection airbags
When fully inflated, the airbags reduce the risk of head or chest injury in a side collision.
Fig. 300 Head-protection airbags in inflated condition
Fig. 300 Head-protection airbags in inflated condition
In certain types of side collision, the head-protection airbag is triggered on the impact side of the vehicle Fig. 300►. Further airbag systems may also be triggered, depending on the circumstances.
When the system is triggered, the airbag fills with a propellant gas and covers the area in front of the side windows next to the seat rows, including the door pillars. In this way the system is able to protect both the front and the rear occupants on the side of the vehicle where the impact occurs. The head-protection airbag inflates to soften the impact if an occupant strikes parts of the interior or objects outside the vehicle with their head. By reducing the head impact and restraining uncontrolled movement of the head, the airbag also reduces the forces acting on the neck.
In order to provide the desired extra protection in an accident, the airbags have to inflate extremely rapidly (within fractions of a second).
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