Hyundai believes they can significantly improve the safety of airbags with the introduction of a “multi-collision” system. Multi-collision accidents are those in which the primary impact is followed by collisions with secondary objects, such as trees, electrical posts or other vehicles, which occurs in three out of every 10 accidents.

Current airbag systems do not offer secondary protection when the initial impact is insufficient to cause them to deploy. However, the multi-collision airbag system allows airbags to deploy effectively upon a secondary impact by calibrating the status of the vehicle and the occupants.

Hyundai’s new technology detects occupant position in the cabin following an initial collision. When occupants are forced into unusual positions, the effectiveness of existing safety technology may be compromised. Multi-collision airbag systems are designed to deploy even faster when initial safety systems may not be effective, providing additional safety when drivers and passengers are most vulnerable. By recalibrating the collision intensity required for deployment, the airbag system responds more promptly during the secondary impact, thereby improving the safety of multi-collision vehicle occupants.

According to statistics by the National Automotive Sampling System Crashworthiness Data System (NASS-CDS), an office of the National Highway Traffic Safety Administration (NHTSA) in U.S., about 30 percent of 56,000 vehicle accidents from 2000 to 2012 in the North American region involved multi-collisions.

The leading type of multi-collision accidents involved cars crossing over the center line (30.8 percent), followed by collisions caused by a sudden stop at highway tollgates (13.5 percent), highway median strip collisions (8.0 percent), and sideswiping and collision with trees and electric poles (4.0 percent).

Hyundai analyzed multi-collision scenarios in order to improve airbag performance and precision in secondary collisions. They will be implementing the system in new Hyundai and Kia vehicles in the near future.