Pressure-based crash detection system incorporated in side rail
US8398133B2 · kind B2 · utility
2Cited by
23References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2010 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | May 13, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R19/483
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicular crash sensing system is provided wherein a bumper cap contacts a bumper. A chamber is at least partially fit into a side rail attached to the bumper, wherein the chamber is sealed by the bumper cap. The bumper cap and chamber together enclose a space containing a volume of air. A stop element limits movement of the chamber into the side rail. A pressure sensor detects an increased chamber air pressure during crushing of the chamber resulting from movement of the bumper with respect to the stop element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.