Airbag deployment device and control

摘要

A method for controlling an airbag system is provided. The airbag system includes an airbag module which may be deployed at different rates to optimize performance of the airbag module to a given impact. The airbag system includes a control module, an impact sensor, a seatbelt restraint sensor and an airbag module. The airbag module includes an inflator having two independent squibs, a first one of the squibs being coupled to a first charge and a second one of the squibs being coupled to a second charge. The method monitors various vehicle dynamics and controls the generation of first and second squib pulses which cause the deployment of the first and second charges so as to optimize the rate at which the airbag is deployed for an impact of a given magnitude. The method also monitors the integrity of each squib circuit and when a fault in a squib circuit is detected, the deployment algorithm is modified to ensure that the airbag will deploy.