Collision determining device
US7286920B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2004 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Jul 7, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/01322
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Satellite sensors are disposed in both sidewalls of a vehicle; each of the satellite sensors detects as an acceleration a collision of an obstruction with the corresponding sidewall. A floor G sensor is disposed in a central portion of the vehicle for detecting as an acceleration a collision of an obstruction with either of both the sidewalls. A two-dimensional correlational map is produced to have two parameters of an acceleration detected by the satellite sensor and speed variation derived from an acceleration detected by the floor G sensor. A collision determining threshold line is set on the correlational map. When a tracking line crosses the threshold line from the side containing the original point to the other side, a collision occurrence of a given pattern requiring activation of an occupant protection device is determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.