METHOD OF MANAGING MALFUNCTIONS OF A MODULAR-ARCHITECTURE CONTROL SYSTEM OF A MOTOR VEHICLE POWER PLANT AND CORRESPONDING CONTROL SYSTEM

• US 20110040444A1
• Filed: 12/10/2008
• Published: 02/17/2011
• Est. Priority Date: 12/20/2007
• Status: Active Grant

• Current Assignee: Renault Sas (Renault)
• Original Assignee: Renault Sas (Renault)
• Inventors: Regnard De Lagny, Joseph, Belaid, Abdelmalik, Seyres, Sylvain
• Granted Patent: US 8,473,146 B2
• Time in Patent Office: Days
• US Class Current: 701/34
• CPC Class Codes: B60W 50/0205 Diagnosing or detecting failures; Failure detection models

Abstract

A method of managing information interchanged within a modular-architecture control system of a motor vehicle power plant and values of which are liable to be affected by malfunctioning of the control system and/or of the power plant. In the method an indication of the validity of the value of the information is allocated to each of the information items, this indication of validity being formulated by a module that generates the information on the basis of input indications received by the generating module and representative of a potential malfunctioning of this generating module or of another module.

Claims

1-12. -12. (canceled)

13. A method for managing information exchanged within a modular-architecture control system of a motor vehicle drive train and values of which are likely to be affected by a malfunction of the control system and/or of the drive train, the method comprising:

assigning each of information items a validity indication for a value of the information item, the validity indication being generated by a module generating the information from input indications received by the module and representative of a possible malfunction of the module or of another module.

14. The method as claimed in claim 13, wherein the generator module is a module for acquiring at least one parameter and the input indications are indicators representative of a possible fault state of the acquisition module.

15. The method as claimed in claim 13, wherein the indicators representative of a possible fault state of the acquisition module are delivered by a fault manager module.

16. The method as claimed in claim 13, wherein the input indications of the generator module are validity indications associated with information items delivered to the generator module by another module.

17. The method as claimed in claim 13, wherein the validity indications are likely to take plural different values respectively representative of different levels of malfunction.

18. The method as claimed in claim 13, wherein the validity indication is generated by the module generating the information from failure indications detected by the generator module itself.

19. A modular-architecture control system for a motor vehicle drive train, comprising:

a plurality of modules configured to exchange information, values of which are likely to be affected by a malfunction of the control system and/or of the drive train,

each of the modules comprising input means configured to receive input indications representative of a possible malfunction of the module or of another module,

at least one of the modules comprising output means for delivering at least one information item and generation means for assigning each information item a validity indication concerning the value of each information item.

20. The system as claimed in claim 19, wherein at least one module is a module for acquiring at least one parameter and the input indications to be received by the input means of the acquisition module are indicators representative of a possible fault state of the acquisition module.

21. The system as claimed in claim 19, further comprising a fault manager module configured to deliver the indicators representative of a possible fault state of at least one module.

22. The system as claimed in claim 19, wherein the input indications to be received by the input means of at least one module are validity indications associated with information items delivered to the module by another module.

23. The system as claimed in claim 19, wherein the validity indications can take plural different values respectively representative of different levels of malfunction.

24. The system as claimed in claim 19, wherein at least one module comprises means for detecting its own failure.