Method of determining and indicating airbag suppression status
US7120554B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2004 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Apr 2, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/01516
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An occupant weight-based airbag suppression method utilizes adjustable time constant filtering and dynamic threshold adjustment to reliably determine and indicate airbag suppression status. The filter time constant is ordinarily set to a first value that provides relatively fast tracking of the raw occupant weight, but is set to a second value that provides relatively slow tracking of the raw occupant weight when both the raw and filtered occupant weights are within a specified band about the threshold value. The threshold value and band are dynamically adjusted after the suppression status is initially determined so as to effectively increase the separation between the filtered weight and the threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.