Method and apparatus for detecting air bag deployment
US5574427A · kind A · utility
58Cited by
8References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 15, 1996 |
| Grant date | Nov 12, 1996 |
| Priority date | — |
| Expiry date | Mar 15, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/01
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An arrangement in the passenger compartment of a vehicle independent of a SIR system responds to the impulse noise of an inflating air bag as well as to vehicle acceleration to determine that the air bag has inflated, and then activates a communication device to transmit an emergency signal. A noise sensing transducer is either a pressure sensor or a microphone, and an accelerometer detects minimal conditions for a crash. A microprocessor evaluates the output signal and the acceleration to decide whether to signal the communication device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.