Method and apparatus for disabling an actuatable restraint based on determined crash velocity and displacement
US6212454A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1998 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Jul 23, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/01322
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An apparatus for controlling an actuatable restraint (14) in a vehicle (12) includes an accelerometer (10) for providing a crash acceleration signal. A velocity determiner (60) determines a crash velocity value from the crash acceleration signal. A first comparator (62) compares the determined crash velocity value against a velocity threshold value (64). A displacement determiner (70) determines a crash displacement value from the crash acceleration signal. A second comparator (72) compares the determined crash displacement value against a displacement threshold value (74). A deployment determiner (50) is coupled to and responsive to the accelerometer (10) for determining if a deployment crash event is occurring and for providing a deployment control signal when it determines that a deployment crash event is occurring. The deployment control signal is further processed (80, 82) so that the deployment control signal is prevented from actuating the actuatable restraint (14) when the determined velocity value is greater than said velocity threshold value and the determined displacement value is greater than the displacement threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.