Method and apparatus for sensing a vehicle crash using a displacement velocity metric
US5702124A · kind A · utility
24Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1996 |
| Grant date | Dec 30, 1997 |
| Priority date | — |
| Expiry date | Apr 22, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/0133
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle crash sensing arrangement includes an accelerometer (12). A crash velocity value (26) is determined in response to sensed crash acceleration. A crash displacement value (32) is determined from the sensed crash acceleration. A velocity varying displacement threshold value (36) determined. The crash displacement value (32) is compared (38) against the variable displacement threshold value (36). The comparator (38) provides a signal indicative of a vehicle crash condition when the crash displacement value is greater than the displacement threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.