Restraint deployment control method with speed-dependent adjustment of deployment threshold
US6236308A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 10, 1999 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | May 10, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/01006
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved deployment method for a vehicular supplemental restraint system having an acceleration sensor and a restraint device to be deployed for occupant protection in a crash event, where the deployment is initiated when a filtered version of the acceleration signal exceeds a deployment threshold that is periodically adjusted based on one or more secondary measures of crash severity, including a vehicle speed measurement at the onset of the crash event, and the level of event progression. In a first embodiment, the vehicle speed measurement pertains to the ground or absolute speed of the vehicle at the onset of the crash event; in a second embodiment, the vehicle speed measure pertains to the vehicle speed relative to a detected obstacle at the onset of the crash event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.