Flexray Communication Module

• US 20080140949A1
• Filed: 06/29/2005
• Published: 06/12/2008
• Est. Priority Date: 08/05/2004
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Hartwich, Florian, Bailer, Franz, Horst, Christian
• Granted Patent: US 7,769,906 B2
• Time in Patent Office: Days
• US Class Current: 711/154
• CPC Class Codes: H04L 12/40013 Details regarding a bus controller
• CPC Class Codes: H04L 12/40026 Details regarding a bus guardian
• CPC Class Codes: H04L 12/417 with deterministic access, e.g. token passing
• CPC Class Codes: H04L 2012/40241 Flexray
• CPC Class Codes: H04L 2012/40273 the transportation system being a vehicle

Abstract

A FlexRay communication module for coupling a FlexRay communication connection to a subscriber, associated with the FlexRay communication module, in a FlexRay network over which messages are transferred, the FlexRay communication module including a first assemblage for storing at least a portion of the transferred messages, and a second assemblage for connecting the first assemblage to the subscriber, and a third assemblage for connecting the FlexRay communication connection to the first assemblage.

Claims

1-14. -14. (canceled)

15. A FlexRay communication module for coupling a FlexRay communication connection to a subscriber, associated with the FlexRay communication module, in a FlexRay network over which a message is transferred, comprising:

a first assemblage adapted to store at least a portion of the transferred message;

a second assemblage adapted to connect the first assemblage to the subscriber; and

a third assemblage adapted to connect the FlexRay communication connection to the first assemblage.

16. The FlexRay communication module as recited in claim 15, wherein the first assemblage contains a message handler and a message memory.

17. The FlexRay communication module as recited in claim 15, wherein the first assemblage contains a message memory, the message memory being divided into a header segment and a data segment.

18. The FlexRay communication module as recited in claim 15, wherein the second assemblage contains an input buffer memory and an output buffer memory.

19. The FlexRay communication module as recited in claim 18, wherein the input buffer memory is divided into a partial buffer memory and a shadow memory, an access to the partial buffer memory and to the shadow memory being transposed.

20. The FlexRay communication module as recited in claim 18, wherein the input buffer memory is divided into a partial buffer memory and a shadow memory whose contents are transposed with one another.

21. The FlexRay communication module as recited in claim 18, wherein the output buffer memory is divided into a partial buffer memory and a shadow memory, an access to the partial buffer memory and to the shadow memory being transposed.

22. The FlexRay communication module as recited in claim 18, wherein the output buffer memory is divided into a partial buffer memory and a shadow memory whose contents are transposed with one another.

23. The FlexRay communication module as recited in claim 22, wherein the input buffer memory and the output buffer memory is designed in such a way that one data region and one header region of two FlexRay messages is storable.

24. The FlexRay communication module as recited in claim 15, wherein the second assemblage contains an interface module that is made up of a subscriber-specific sub-module and a subscriber-independent sub-module.

25. The FlexRay communication module as recited in claim 15, wherein the third assemblage contains a first interface module and a second interface module, and is divided into two data pathways each having two data directions.

26. The FlexRay communication module as recited in claim 15, wherein the third assemblage contains a first buffer memory and a second buffer memory, and is divided into two data pathways each having two data directions.

27. The FlexRay communication module as recited in claim 26, wherein each of the first buffer memory and the second buffer memory is designed in such a way that one data region of two FlexRay messages is storable.

28. The FlexRay communication module as recited in claim 25, wherein each of the first interface module and the second interface module contains a shift register and a FlexRay protocol state machine.