Passive safety system and determination device
US7406376B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2004 |
| Grant date | Jul 29, 2008 |
| Priority date | — |
| Expiry date | May 6, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/0156
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A determination device includes a single acceleration sensor for measuring an acceleration of a vehicle and a determination circuit for determining severity of a collision in an accident. A plastic deformation pulse detection section and an elastic deformation pulse detection section of the determination circuit detect a plastic deformation pulse and an elastic deformation pulse, respectively, from a waveform of measured accelerations. A severity determination section of the detection circuit determines the severity of a collision based on a correlation between a vehicle speed and a plastic deformation pulse, and a correlation between the vehicle speed, the plastic deformation pulse, and an elastic deformation pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.