METHOD AND CONTROL UNIT FOR ACTIVATING PASSENGER PROTECTION MEANS FOR A VEHICLE

• US 20110190988A1
• Filed: 11/19/2008
• Published: 08/04/2011
• Est. Priority Date: 01/07/2008
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Judalet, Vincent, Koerner, Olaf, Kolatschek, Josef, Kaerner, Christof, Doerr, Alfons, Hiemer, Marcus
• Application Number:
  US12/735,135
• Publication Number:
  US 20110190988A1
• Time in Patent Office: Days
• US Class Current: 701/46
• CPC Class Codes: B60R 2021/01322 comprising variable thresholds, e.g. depending from other collision parameters
• CPC Class Codes: B60R 21/013 including means for detecting collisions, impending collisions or roll-over

Abstract

In a method for activating a passenger protection unit for a vehicle, features are generated from at least one sensor signal of a crash sensor system. Furthermore, a difference of a feature vector with a first threshold value is formed. This difference is weighted as a function of at least one of the features. The passenger protection unit is subsequently activated as a function of a comparison of a variable, derived from the weighted difference, with a second threshold value.

Claims

1-10. -10. (canceled)

11. A method for activating a passenger protection arrangement for a vehicle, comprising:

obtaining at least one vehicle dynamics feature from at least one sensor signal of a crash sensor system;

forming a feature vector based on the at least one vehicle dynamics feature;

forming a difference between the feature vector and a first threshold value;

weighting the difference as a function of at least one weighting feature;

deriving a weighted variable based on the weighted difference; and

activating the passenger protection arrangement as a function of a comparison between the weighted variable and a second threshold value.

12. The method as recited in claim 11, wherein the weighted variable is generated by integrating the weighted difference.

13. The method as recited in claim 11, wherein the weighting includes multiplying the difference with the weighting feature.

14. The method as recited in claim 11, wherein the second threshold value is variably selected as a function of at least one of a selected vehicle dynamics feature and time.

15. The method as recited in claim 11, wherein the feature vector is formed based an vehicle acceleration and velocity.

16. The method as recited in claim 13, wherein the vehicle acceleration is used as the at least one weighting feature.

17. The method as recited in claim 11, wherein the first threshold value distinguishes between an activating situation and a non-activating situation for the passenger protection arrangement.

18. The method as recited in claim 11, wherein the first threshold value distinguishes between two different crash types.

19. The method as recited in claim 11, wherein the first threshold value distinguishes between two different crash severity levels.

20. A control unit for activating a passenger protection arrangement for a vehicle, comprising:

an interface configured to provide at least one sensor signal generated by a crash sensor system;

an analyzer circuit including;

a feature module configured to generate at least one vehicle dynamics feature from the at least one sensor signal and form a feature vector based on the at least one vehicle dynamics feature;

a difference module configured to form a difference between the feature vector and a first threshold value;

a weighting module configured to weight the difference as a function of at least one weighting feature; and

a comparator module configured to compare a variable derived from the weighted difference to a second threshold value; and

an activating circuit configured to activate the passenger protection arrangement as a function of the comparison with the second threshold value.