Apparatus and method for detecting vehicle rollover having roll-rate switched threshold
US6433681B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2001 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Jan 24, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/01327
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle rollover event detector (10) includes an accelerometer (80) that senses vehicle acceleration in a direction offset from a front-to-rear axis of the vehicle (12) and provides an acceleration signal (101) indicative thereof. A rollover sensor (14) senses vehicle roll and provides a roll signal (32) indicative of vehicle roll about the front-to-rear axis of the vehicle. A controller (26) compares the roll signal (32) against a first rollover threshold (42) when the acceleration signal (101) is less than an acceleration threshold (113) and compares the roll signal (32) against a second rollover threshold (116) when the acceleration signal (101) is equal to or greater than the acceleration threshold (113) and for indicating a vehicle rollover condition when the roll signal is greater than the threshold (42, 116) it is compared against.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.