We’ve heard about manufacturers developing external airbags in the past, but ZF just presented some testing data and its strategy for the safety tech going forward. Through testing, ZF found that its external airbag could reduce the injury severity of an occupant by up to 40 percent.
This statistic could serve as a tangible reason to implement external airbag technology on production cars once everybody gets it totally sorted. ZF’s external airbags are designed to deploy from the side of the vehicle and act as an additional crumple zone during an impact. The airbag ends up looking and functioning like a massive pillow, absorbing some of the blow of a side impact crash.
Making the airbag deploy as intended will be the biggest challenge for external airbags like this one making it to the market. A vehicle must be able to detect when a crash is about to happen, then fire a split second beforehand. Some vehicles already offer predictive systems that prepare for an imminent impact, but an airbag going off is a lot more drastic than seatbelt tightening or suspension adjustments happening in real time. Nobody wants an airbag to go off when it isn’t needed — there are many examples of this occurring in the past.