Load sensor, method of detecting load and pedestrian protection system
US7456382B2 · kind B2 · utility
2Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2005 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Dec 27, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/01095
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A load sensor includes a optical fiber sensor that provides output analog signals in response to shocks of various magnitudes caused by hits by a vehicle on various objects, two or more amplifiers each of which approximates a non linear function of the analog signals and a unit that converts the linear functions into digital data. Therefore, each analog signal either in a lower magnitude range or a higher magnitude range can be amplified by one of the amplifiers that has a more suitable gain, so that the magnitude of the shock can be accurately converted into digital data for a pedestrian protection airbag system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.