Thorax side airbags
Head Thorax Side Impact Airbag works as a Thorax module. It offers a combined head and thorax protection in side impact collisions for one occupant and is often used where the Inflatable Curtain (IC) (that also provides protection in rollovers as well as for near-seat occupants) cannot be mounted, such as in convertible cars.
Door Mounted Inflatable Curtain
Many convertible vehicles use head-thorax bags for side impact protection. These are thorax bags with an extension that inflates upwards to protect the head. But the extension can be wobbly since it is not attached to any roof pillars. There is also a risk that the occupant's head misses or slides off the relatively narrow head extension. To address these drawbacks, Autoliv developed a specially designed Door-Mounted inflatable Curtain (DMIC) for convertible vehicles. This airbag is made up of a multitude of small cells in three layers (like a beehive). This ingenious structure gives it unsurpassed stability and as a result it can be used in different situations, such as rollovers, since the structure is strong enough to hold the occupants safe inside the vehicle in many severe accidents.