Method for Operating a Lin Bus

• US 20090307400A1
• Filed: 07/03/2007
• Published: 12/10/2009
• Est. Priority Date: 07/12/2006
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Machauer, Ralf, Mauel, Ingo
• Application Number:
  US12/227,816
• Publication Number:
  US 20090307400A1
• Time in Patent Office: Days
• US Class Current: 710/110
• CPC Class Codes: H04L 12/403 with centralised control, e.g. polling
• CPC Class Codes: H04L 2012/40234 Local Interconnect Network LIN
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 67/34 involving the movement of software or configuration parameters network booting or remote initial program loading [RIPL] G06F9/4416
• CPC Class Codes: H04L 69/18 Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
• CPC Class Codes: H04L 69/32 Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
• CPC Class Codes: H04L 69/324 in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04L 69/326 in the transport layer [OSI layer 4] H04L69/16 takes precedence

Abstract

A method for operating a LIN bus, whose specifications in normal operation are described by a LIN bus in which an alternative communications protocol is tunneled through the LIN protocol, for carrying out a special operation.

Claims

1-15. -15. (canceled)

16. A method for operating a LIN bus, whose specifications in normal operation are described by a LIN bus, the method comprising:

tunneling an alternative communications protocol through the LIN protocol for carrying out a special operation.

17. The method as recited in claim 16, wherein a service connected with the alternative communications protocol is imaged on a frame of the LIN protocol.

18. The method as recited in claim 17, wherein at least one datum of the frame is reserved as a function of the service.

19. The method as recited in claim 18, wherein at least one datum of the diagnostic frame is reserved as a function of the service.

20. The method as recited in claim 16, wherein at least one user of the LIN bus is programmed via the alternative communications protocol.

21. The method as recited in claim 16, wherein, during the special operation, a diagnosis is carried out, the alternative communications protocol being imaged on a diagnostic frame of the LIN protocol.

22. The method as recited in claim 17, wherein the alternative communications protocol is a UDS protocol, the UDS protocol being tunneled through the LIN protocol, a UDS service being imaged on the frame.

23. The method as recited in claim 17, wherein the alternative communications protocol is a proprietary protocol, the proprietary protocol being tunneled through the LIN protocol, a proprietary service being imaged on the frame.

24. The method as recited in claim 17, wherein the alternative communications protocol is a KWP2000 protocol, the KWP2000 protocol being tunneled through the LIN protocol, a KWP2000 service being imaged on the frame.

25. The method as recited in claim 17, wherein parameters of the alternative communications protocol are reserved as a function of the service.

26. A system, comprising:

a LIN bus that has a plurality of users and whose specifications in normal operation are described by a LIN protocol, at least one of the users adapted to tunnel an alternative communications protocol through the LIN protocol to carry out a special operation.

27. The system as recited in claim 26, wherein a first one of the users is a master and at least one second one of the users is a slave.

28. The system as recited in claim 27, wherein, for carrying out a communication, the master is adapted to transmit requests to the slave and the slave is adapted to transmit responses to the master.

29. A memory device storing a computer program, the computer program, when executed by a processor, causing the processor to perform the steps of tunneling an alternative communications protocol through a LIN protocol on a LIN bus.

30. The memory device as recited in claim 29, wherein a special operation is carried out as a result of the tunneling.