Air bag system with biomechanical gray zones
US6448890B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 2000 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | May 24, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/0155
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The implementation of dual-stage inflators in some production vehicles is quickly becoming a common reality. A dual-stage inflator has two firing squibs that can fire independently, simultaneously or in a delayed mode. This tailorability provides the ability to fire a low level, high level or staged delay level depending on the impact velocity or other means. For each restraint condition, the inflator output threshold speeds are identified. A biomechanical gray zone, for each injury assessment reference value, is defined based on occupant performance. The upper and lower bound of each biomechanical gray zone is associated with a type of occupant, inflator output, belt restraint and injury parameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.