System for activating passenger-protecting device mounted on automotive vehicle
US7134521B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2003 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Jan 13, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/01327
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Angular velocity in a rolling action of a vehicle is detected by an angular velocity sensor, and a difference between two angular velocities detected in a short time interval is calculated. The calculated angular velocity difference is compared with a predetermined threshold value. If the angular velocity difference is larger than the threshold value, a passenger-protecting device is activated. A rolling angle of the vehicle may be calculated by integrating the detected angular velocity, and a combination of the rolling angle and the angular velocity may be compared with a predetermined threshold. If the combination exceeds the threshold, it is determined that the vehicle is rolling over and the passenger-protecting device is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.