Pressure and acceleration based pedestrian impact sensor assembly for motor vehicles
US8972116B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2012 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Apr 19, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/0092
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A sensor assembly for a motor vehicle adapted for sensing impacts including pedestrian impacts. The sensor assembly integrates functions of pressure based sensors used in one embodiment with a compressible tube extending laterally across the front surface of the vehicle and the outboard front boundary areas of the front end of the vehicle. Both acceleration and pressure based sensors are mounted into an integrated sensor housing which is mounted in a desired position at the vehicle front fascia front boundary areas. The system optimizes pressure based sensing while providing acceleration based sensing at the lateral boundary areas where supporting structure does not enable pressure based sensing. The invention further including sensor arrangements including discrete pressure and acceleration sensors deployed for detecting pedestrian impacts at the center and front boundary areas of the vehicle front end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.