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Communication method between ECUs (Electronic Control Units) based on message forwarding

A technology of message forwarding and communication methods, applied in data exchange through path configuration, digital transmission systems, electrical components, etc., can solve the problems of prolonging the software development cycle, increasing the complexity and cost of system development, and achieving simple implementation and improved The effect of development speed

Inactive Publication Date: 2012-07-18
ZHEJIANG UNIV
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Problems solved by technology

However, this virtually prolongs the software development cycle and increases the complexity and cost of system development

Method used

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  • Communication method between ECUs (Electronic Control Units) based on message forwarding
  • Communication method between ECUs (Electronic Control Units) based on message forwarding
  • Communication method between ECUs (Electronic Control Units) based on message forwarding

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Embodiment Construction

[0039] Refer to attached Figure 1-4 , to further describe the present invention in detail.

[0040] A communication method between ECUs based on message forwarding, comprising the following steps:

[0041] 1), analyze and establish the static message routing table in the system:

[0042] (1.1) Obtain the top-level composite components in the system;

[0043] (1.2) Use the component smoothing algorithm to transform the software components into a single-layer structure, and update the mapping relationship between software components and electronic control units in the system and the mapping relationship between data elements and system signals;

[0044] (1.3) Obtain all system mapping information in the system, that is, extract connection information and mapping information of software components in the system;

[0045](1.4) Analyze the mapping relationship between data elements and system signals in the system, establish the communication relationship between different ...

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Abstract

The invention relates to the technical field of automobile electronic software development, in particular to a communication method between ECUs (Electronic Control Units) based on message forwarding. The communication method comprises the following steps of: by analysis on system mapping information in an AUTOSAR (Automotive Open System and Architecture) system, extracting and establishing a static message routing table in the system, and providing a method for realizing message communication between the ECUs by software by utilizing the well-established static message routing table, i.e., the communication method between the ECUs based on message forwarding. On the basis of the message broadcast characteristic of an arbitration mechanism of a CAN (Control Area Network) bus, a software method is used for simulating the transceiving of the CAN bus for CAN frames so as to realize communication between the ECUs. The communication method has the advantages that the large cost caused by operation on real environments and hardware platforms of the ECUs after the development is finished to generate executable codes in the traditional technology is reduced, and the development speed of the AUTOSAR is increased.

Description

technical field [0001] The invention relates to the technical field of automotive electronic software development, in particular to a communication method between ECUs based on message forwarding. Background technique [0002] With the wide application of automotive electronic technology and products in the automotive industry, the scale of embedded applications in automobiles is increasing. At present, the number of ECUs (Electronic Control Units) included in automobiles has expanded to several Ten, or even hundreds, so effective communication between ECUs has become an important research direction to improve the quality and efficiency of automotive electronics development technology. [0003] In the field of practical application of automotive electronics, CAN (Controller Area Network, Controller Area Network) is the most widely used serial bus, and it is even used multiple times in a car: the low-speed CAN bus is used to connect the ECU of the comfort system , high-speed...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/58H04L12/40H04L12/701
Inventor 顾宗华吴朝晖耿莉莉孙征郭徐姜旭锋杨国青
Owner ZHEJIANG UNIV
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