DEVICE AND METHOD FOR TRIGGERING PASSENGER PROTECTION SYSTEM IN CONSIDERATION OF ROAD GRIP COEFFICIENT

• US 20090306859A1
• Filed: 02/20/2007
• Published: 12/10/2009
• Est. Priority Date: 04/19/2006
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Denz, Holger, Doerr, Alfons, Schmid, Michael, Tichy, Marc Andre
• Granted Patent: US 9,150,176 B2
• Time in Patent Office: Days
• US Class Current: 701/46
• CPC Class Codes: B60R 2021/0018 Roll-over
• CPC Class Codes: B60R 2021/01304 monitoring rough road condition
• CPC Class Codes: B60R 21/0132 responsive to vehicle motion parameters , e.g. to vehicle longitudinal or transversal deceleration or speed value
• CPC Class Codes: B60W 2552/40 Coefficient of friction

Abstract

A device and a method for triggering passenger protection systems, the passenger protection systems being triggered as a function of a rollover process. A signal which characterizes a road grip coefficient (coefficient of friction) is received via an interface. An evaluation circuit is provided which triggers the passenger protection systems as a function of the signal and a stability factor, the evaluation circuit determining the stability factor as a function of at least one kinematic variable.

Claims

1-9. -9. (canceled)

10. A device for triggering a passenger protection system as a function of a rollover process, comprising:

an interface via which the device receives a signal that characterizes a road grip coefficient; and

an evaluation circuit, the evaluation circuit triggering the passenger protection system as a function of the signal and a stability factor, the evaluation circuit determining the stability factor as a function of at least one kinematic variable.

11. The device according to claim 10, further comprising a triggering circuit which undertakes a selection or a blocking of the passenger protection system, as a function of a trigger signal of the evaluation circuit.

12. The device according to claim 10, further comprising a sensor system for recording kinematic variables, which is connected to the evaluation circuit, the sensor system being configured for recording a roll rate and at least one additional variable.

13. The device according to claim 10, wherein, based on the signal and the stability factor, the evaluation circuit undertakes a prediction of variables.

14. The device according to claim 10, wherein the interface is situated in a control unit, and creates a connection to an electronic stability program.

15. The device according to claim 10, wherein the interface includes a bus controller.

16. A method for triggering a passenger protection system as a function of a rollover process, comprising:

receiving a signal which characterizes a road grip coefficient via an interface;

triggering the passenger protection system as a function of the signal and a stability factor; and

determining the stability factor as a function of at least one kinematic variable.

17. The method according to claim 16, further comprising undertaking a selection or a blocking of the passenger protection system as a function of a trigger signal.

18. The method according to claim 16, further comprising predicting variables as a function of the signal and the stability factor.