Method for error handling for a control device for a passenger protection system and a control device for a passenger protection system

• US 20110130920A1
• Filed: 03/27/2009
• Published: 06/02/2011
• Est. Priority Date: 05/15/2008
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Widmaier, Jochen, Fislage, Markus
• Application Number:
  US12/990,968
• Publication Number:
  US 20110130920A1
• Time in Patent Office: Days
• US Class Current: 701/35
• CPC Class Codes: B60R 2021/01184 Fault detection or diagnostic circuits in power circuits B60R2021/01129
• CPC Class Codes: B60R 2021/01327 Angular velocity or angular acceleration
• 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: B60R 21/0136 responsive to actual contact with an obstacle , e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle monitoring crash strength in combination with passenger seat detection B60R21/01558
• CPC Class Codes: G06F 7/00 Methods or arrangements for processing data by operating upon the order or content of the data handled logic circuits H03K19/00

Abstract

A method for error handling for a control device for a passenger protection system and a corresponding control device are provided, the error handling being implemented by switching off at least one function of the control device as a function of an error detection. The switching off takes place immediately after the error detection, the error qualification taking place after the switching off.

Claims

1-10. -10. (canceled)

11. A method for error handling for a control device for a passenger protection system, comprising:

switching off at least one function of the control device as a function of an error detection, wherein the at least one function is switched off immediately after the error detection; and

qualifying the error after the switching off.

12. The method as recited in claim 11, wherein the error detection is implemented with the aid of a first error type and the error qualification with the aid of at least one second error type, the at least one first error type differing from the at least one second error type.

13. The method as recited in claim 11, wherein the at least one function is switched on again as a function of the error qualification.

14. The method as recited in claim 12, wherein the at least one first error type is a communication error and the at least one second error type is a short circuit.

15. The method as recited in claim 12, wherein the error detection is implemented by incrementing a first counter for a respective occurrence of the at least one first error type in consecutive time periods, and comparing a first reading of the first counter to a first predefined threshold value.

16. The method as recited in claim 12, wherein the at least one first error type is stored in a first memory in the control device immediately after the error is detected, and the at least one second error type is stored in a second memory in the control device after successful error qualification, different access authorizations being used for the first and for the second memory, respectively.

17. The method as recited in claim 11, wherein the error detection is temporally shorter than the error qualification.

18. The method as recited in claim 15, wherein a second counter is incremented or decremented as a function of the error qualification, and a second reading of the second counter is compared to a second predefined threshold value, the error qualification being stored in the second memory as a function of the threshold value comparison.

19. The method as recited in claim 18, wherein the second counter is incremented only if the error qualification is followed by a switching off of the at least one function.

20. A control device for a passenger protection system, comprising:

an error handling circuit for switching off at least one function of the control device as a function of an error detection, the error handling circuit including a switching mechanism for the immediate switching off of the at least one function after the error detection and for performing an error qualification after the switching off.