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System and method for reprogramming nodes in automotive switch fabric network

A technology for reprogramming, gateway nodes, used in the field of communication networks

Active Publication Date: 2010-02-03
TEMIC AUTOMOTIVE OF NORTH AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the context of vehicular switched fabric networks, there is the challenge of how to transport data across the switched fabric network for reprogramming the switched fabric nodes and maintain communication while the memory is being refreshed

Method used

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  • System and method for reprogramming nodes in automotive switch fabric network
  • System and method for reprogramming nodes in automotive switch fabric network
  • System and method for reprogramming nodes in automotive switch fabric network

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Embodiment Construction

[0017] A system and method are described for reprogramming nodes in an automotive switching fabric network using diagnostic devices and interfaces. In summary, a diagnostic device is used to download one or more log files containing software components to remote nodes in an automotive switching fabric network. The reprogramming instructions and log file(s) are routed from the diagnostic device and interface through the gateway node to the target switching fabric node. Create two separate memory sections in each target switch fabric node. One memory section is erasable and contains standard switch fabric network software and application programs (code blocks). Another memory portion is permanent and contains the abridged switching fabric software, which allows the node to act as a standalone switching device (boot block).

[0018] In one embodiment, the download process begins with the diagnostic device instructing the target node to initiate a reprogramming session. The nod...

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PUM

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Abstract

A system and method for reprogramming nodes in an automotive switch fabric network using a diagnostic interface. The switch fabric network includes a plurality of nodes joined by communication links for the transmission of data there between. The plurality of nodes includes at least one target node. The target node includes a processor, a transceiver, and a memory. The memory includes an erasablememory portion and a protected memory portion. The processor in the target node switches from executing instructions in the erasable memory portion to executing instructions in the protected memory portion during a reprogramming period when the target node erases a current software component and stores a new software component in its erasable memory portion. The diagnostic interface is adapted totransmit the new software component to the target node.

Description

[0001] This application claims priority to provisional application Serial No. 60 / 618,726, filed October 14, 2004, entitled "System and Method for Reprogramming Nodes in an Automotive Switch Fabric Network," which is an application family of this invention and is incorporated by reference its entirety is incorporated here. technical field [0002] The present invention relates generally to communication networks in vehicles and, in particular, to a system and method for reprogramming nodes in an automotive switching fabric network using a diagnostic interface. Background technique [0003] Commonly assigned U.S. Patent Application serial no. 09 / 945,581, Publication No. US 20030043793, entitled "Vehicle Active Network," filed Aug. 31, 2001 (herein incorporated by reference in its entirety) , introduces the concept of active networks including switched structures. The switching fabric is a network of interconnected switching devices or nodes. Control devices, sensors, actuato...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26G01M17/00
Inventor 帕特里克·D·乔丹董海休·W·约翰逊普拉卡什·U·卡瑟
Owner TEMIC AUTOMOTIVE OF NORTH AMERICA