Air bag system
US7739012B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2006 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | Feb 2, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/0119
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
To achieve an air bag system in which a safing determination processing circuit can be implemented on one integrated circuit, the air bag system, which is equipped with first and second sensors (101, 103) for detecting a vehicle crash, and which outputs a signal for expanding an air bag when it is determined that a vehicle crash has occurred based on the outputs of the first and second sensors, comprises: a processing unit (3) for processing an output signal of the first sensor (101) by software; and a processing circuit (2) for processing an output signal of the second sensor (103) by hardware, wherein the processing unit (3) includes a non-activation fault diagnosis section (33) which, based on the output signal of the second sensor (103), detects a failure that can lead to non-activation of the air bag, and the processing circuit (2) includes an erroneous-activation fault diagnosis section (240) which, based on the output signal of the second sensor (103), detects a failure that can lead to erroneous activation of the air bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.