Device For Triggering a Second Airbag Stage

• US 20080185825A1
• Filed: 03/04/2005
• Published: 08/07/2008
• Est. Priority Date: 05/12/2004
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Koehler, Armin, Moldenhauer, Maike, Stuetzler, Frank-Juergen, Schuller, Hermann
• Application Number:
  US11/596,025
• Publication Number:
  US 20080185825A1
• Time in Patent Office: Days
• US Class Current: 280/735
• CPC Class Codes: B60R 2021/2633 with a plurality of inflation levels
• CPC Class Codes: B60R 21/013 including means for detecting collisions, impending collisions or roll-over
• CPC Class Codes: B60R 21/0152 using strain gauges
• CPC Class Codes: B60R 21/01542 detecting passenger motion
• CPC Class Codes: B60R 21/01562 by speed

Abstract

A device for triggering a second airbag stage as a function of at least one occupant variable and a crash severity, the crash severity being determined as a function of an impact velocity of occupants onto the airbag. In this context, the correlation between crash severity and impact velocity is formed on the basis of a standardized (standard) occupant.

Claims

1-7. -7. (canceled)

8. A device comprising:

an arrangement for determining a crash severity as a function of an impact velocity of an occupant onto an airbag; and

an arrangement for triggering a second airbag stage as a function of at least one occupant variable and the crash severity.

9. The device according to claim 8, further comprising an arrangement for determining the impact velocity as a function of a forward displacement of the occupant and a time which starts as of a beginning of the crash.

10. The device according to claim 8, wherein the crash severity is determined as a further function of a crash type.

11. The device according to claim 8, wherein the crash severity is determined as a further function of a signal from an upfront sensor system.

12. The device according to claim 8, wherein the crash severity is determined via a selectable characteristic curve as a function of the impact velocity.

13. The device according to claim 12, further comprising an arrangement for determining the characteristic curve based on a crash type.

14. A device comprising:

an arrangement for determining a crash severity as a function of an impact velocity of a standardized occupant onto an airbag; and

an arrangement for triggering a second airbag stage as a function of at least one occupant variable and the crash severity.

15. The device according to claim 14, further comprising an arrangement for determining the impact velocity as a function of a forward displacement of the occupant and a time which starts as of a beginning of the crash.

16. The device according to claim 14, wherein the crash severity is determined as a further function of a crash type.

17. The device according to claim 14, wherein the crash severity is determined as a further function of a signal from an upfront sensor system.

18. The device according to claim 14, wherein the crash severity is determined via a selectable characteristic curve as a function of the impact velocity.

19. The device according to claim 18, further comprising an arrangement for determining the characteristic curve based on a crash type.