The Need
Current automotive seatbelt systems, especially standard 3-point belts, often fall short in protecting occupants during complex side impacts and in emerging autonomous vehicle seating configurations. Existing solutions like inflatable belts and safety vests can be uncomfortable and are not always effective. There is a clear need for a supplemental restraint system that integrates seamlessly with existing seatbelts to improve protection for the head, torso, and legs without compromising comfort or usability.

The Technology
This technology, developed by OSU engineers, introduces a novel auxiliary shoulder belt that attaches to the primary seatbelt using a custom-designed, low-profile bayonet latch. The bayonet connectors enable quick, secure, and reversible mechanical fastening between fabric seatbelt components. The system is user-friendly, reconfigurable, and maintains a slim profile, allowing it to supplement existing restraint systems and enhance occupant safety in both conventional and future vehicle interiors.

Benefits/Advantages
• Reduces head excursion by up to 24% in side crashes and up to 35% in frontal crashes, based on sled test measurements
• All injury criteria remain well below nominal safety thresholds for the conditions tested
• Enhances force distribution and occupant restraint without sacrificing comfort
• Easily integrates with existing seatbelt hardware and is adaptable to various vehicle types