Method for triggering a two-stage air bag gas generator

US6199903A · kind A · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Luigi Brambilla · Eppelheim, DE
• Manfred Muller · Wuppertal, DE
• Harald Rudolf · Lörrach, DE

Key dates

• Filing date: Apr 19, 1999
• Grant date: Mar 13, 2001
• Expiry date: Apr 19, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2021/01034
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In a method for triggering a two-stage air bag generator in a motor vehicle, an acceleration signal is measured, processed and evaluated with respect to the accident severity according to a first evaluation process. As a function of the determined accident severity, a triggering decision is made at least for the triggering of a first stage of the gas generator. At least until a defined time period T1 has elapsed since the ignition of the first stage, the acceleration signal is evaluated according to a second evaluation process with respect to the accident severity before, on the basis of defined triggering conditions, as a function of the determined accident severity, a triggering decision is made for igniting the second stage of the gas generator.