Automobile communication offline simulation method

A technology of automobile communication and simulation method, which is applied in the direction of bus network, data exchange through path configuration, combustion engine, etc., can solve the problems of poor scalability, poor portability, high cost, etc., and achieve low cost, strong applicability, The effect of low threshold

Active Publication Date: 2022-08-02
DONGFENG MOTOR GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the on-line and off-line simulation of messages in the field of automotive communication, CANoe from Vector is widely used in the industry. It is realized by editing its unique CAPL code program, which is costly and poor in readability, scalability, and portability.

Method used

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  • Automobile communication offline simulation method
  • Automobile communication offline simulation method

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Embodiment Construction

[0017] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0018] The full English names and Chinese definitions of the abbreviations that appear in the present invention:

[0019] CAN: Vehicle field bus, a communication protocol.

[0020] Message: The basic unit of communication, representing a data packet.

[0021] Packet Period: The time interval between two frames of packets sent periodically.

[0022] Online: Messages are sent continuously at a certain period without interruption.

[0023] Dropped: The last frame of the message is more than a certain time away from the current moment.

[0024] VCU: Vehicle Controller.

[0025] DLC: The number of bytes in the data...

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Abstract

The invention discloses an automobile communication offline simulation method, which comprises the following steps of: 1) establishing an Excel test case table, and filling test parameters which need to be set in the Excel table; 2) reading the test case table, and packaging the test case table into a structural body array; 3) at the beginning of testing, indexing all elements of the structural body array, and periodically sending related messages; and 4) carrying out loop indexing on the structural body array again, sequentially deleting each message, after the deletion, enabling the message to be offline and setting time, and after the time is satisfied, immediately obtaining a value of a generated communication monitoring fault, and then enabling the message to be recovered to be sent, thereby realizing offline simulation of the message. And 5) detecting the value of the generated communication monitoring fault to obtain whether the ECU normally detects the communication loss fault. According to the method disclosed by the invention, online and offline simulation of the automobile communication message is carried out by adopting a framework in which test execution and test cases are separated, so that the cost is low and the applicability is high.

Description

technical field [0001] The invention relates to an automobile communication technology, in particular to an automobile communication dropped line simulation method. Background technique [0002] Communication drop simulation involves technical points such as compound cycle control of messages, dynamic stop / recovery control, and real-time fault reading, which is a major difficulty in the field of vehicle communication testing. are left blank. For the online and dropped simulation of messages in the field of automotive communication, Vector's CANoe is widely used in the industry. It is implemented by editing its unique CAPL code program, which is expensive, poor in readability, scalability and portability. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide a method for simulating disconnection of automobile communication, aiming at the defects in the prior art. [0004] The technical solution adopted by the present i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L43/50H04L41/14H04L41/06H04L12/40
CPCH04L43/50H04L41/145H04L41/06H04L12/40H04L2012/40215H04L2012/40273Y02T10/40
Inventor 司文奎饶超
Owner DONGFENG MOTOR GRP
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