Two stage-ignition air bag system for vehicle and igniting method thereof
US6398257B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2000 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | May 18, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/2633
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A two stage-ignition air bag apparatus for a vehicle of the present invention includes an air bag, a first inflator ignited when a value according to collision severity has reached a first threshold value in order to inflate the air bag, and a second inflator ignited at earlier one of times when the value according to collision severity has substantially reached a second threshold value that is greater than the first threshold value and when a predetermined time has passed since the value according to collision severity reached the first threshold value in order to inflate the air bag. Also, a method of igniting the two stage-ignition air bag apparatus of the present invention includes the steps of igniting the first inflator when a value according to collision severity has reached a first threshold value, and igniting the second inflator at earlier one of times when the value according to collision severity has substantially reached a second threshold value that is greater than the first threshold value and when a predetermined time has passed since the value according to collision severity reached the first threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.