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Automatic test system and method of vehicular ECU communication function

A technology of automated testing and communication functions, applied in transmission systems, digital transmission systems, electrical components, etc., can solve the problems of low manual operation efficiency, single test function, complicated test system, etc., to improve efficiency and quality, and simplify the test system , the effect of reducing the use time

Active Publication Date: 2017-11-21
ZHEJIANG LIBANG HEXIN INTELLIGENT BRAKING SYST CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a vehicle-mounted ECU communication function automatic test system and method, which solves the current problems of single test function, complicated test system, low efficiency of manual operation, and large errors.

Method used

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  • Automatic test system and method of vehicular ECU communication function
  • Automatic test system and method of vehicular ECU communication function
  • Automatic test system and method of vehicular ECU communication function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 As shown, the vehicle ECU communication function automatic test system includes the following units:

[0047] Data storage unit 1: used to store database files (DBC or DBF), leaking frame (RollingCounter) algorithm files and check data (Checksum) algorithm files; used to store test results, test vehicle Can node data, and vehicle ECU output node data Communication data with UDS;

[0048] Main control unit 2: used to control data storage unit 1, communication unit 3, node algorithm analysis unit 6 and diagnosis analysis unit 7;

[0049] Communication unit 3: used to drive and establish Can communication, Can communication includes node output, node input and UDS communication;

[0050] Node simulation unit 4: used for simulating and simulating Can communication nodes of the whole vehicle, which can support signal node simulation of 1~30 independent processes;

[0051] Node monitoring unit 5: used to monitor the output nodes of the vehicle ECU, which c...

Embodiment 2

[0057] Such as figure 2 As shown, the node signal loss test method in the automatic test of the vehicle ECU communication function includes the following steps:

[0058] Step 1) Import the database file (DBC or DBF), the RollingCounter algorithm file and the Checksum algorithm file in sequence;

[0059] Step 2) Edit the node cycle and node default value in turn, and start the node;

[0060] Step 3) Read the communication failure information of the vehicle ECU under test. If there is no failure, return to step 1) Re-import the RollingCounter algorithm file and Checksum algorithm file. If there is a failure, proceed to the following steps ;

[0061] Step 4) Select the corresponding test sequence, start the node signal loss test, and automatically test the node signal loss according to the test sequence. Stop sending the test node, record the start time when the node is lost, start reading the fault through the read fault protocol of the UDS communication protocol, and record...

Embodiment 3

[0064] Such as image 3 As shown, the node signal error testing method in the vehicle-mounted ECU communication function automation test includes the following steps:

[0065] Step 1) Import database file (DBC or DBF), leaking frame (RollingCounter) and check data (Checksum) algorithm file in sequence;

[0066] Step 2) Edit the node cycle and node default value in turn, and start the node;

[0067] Step 3) Read the communication fault information of the vehicle ECU under test, if there is no fault, return to step 1) re-import the algorithm file of the missing frame (RollingCounter) and the algorithm file of the inspection data Checksum), if there is a fault, proceed to the following steps;

[0068] Step 4) Select the corresponding test sequence to start the node signal error test, and the automatic test executes the node signal error test according to the test sequence. Stop sending the test node normally, send the signal to the wrong node, record the start time when the nod...

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Abstract

The invention discloses an automatic test system and method of a vehicular ECU communication function. The system comprises a data storage unit used for storing data; a master control unit for controlling; a communication unit used for driving and establishing Can communication; a node simulation unit used for simulating a full vehicle Can communication node; a node monitoring unit used for monitoring a vehicular ECU output node; a node algorithm analysis unit used for analyzing the vehicular ECU output node and the full vehicle Can communication node; and a diagnosis and analysis unit used for analyzing full vehicle UDS communication and analyzing a test result. The test method comprises node signal loss test, node signal error test, data inspection error test, frame leakage signal error test and node setting. By adoption of the automatic test system and method of the vehicular ECU communication function, the problems of single test functions, complex system, low manual operation efficiency and large errors and the like at present are solved.

Description

technical field [0001] The invention relates to a testing system and method, in particular to a vehicle-mounted ECU communication function automatic testing system and method, belonging to the field of automotive communication testing. Background technique [0002] There are currently two main methods for the communication function test of the vehicle ECU: one is to use the node signal simulator and signal recorder to test; the other is to use the vehicle comprehensive test bench, using rapid prototype simulation and standard UDS communication development kit Get a diagnostic test. in, [0003] There are the following problems in signal simulation using node signal simulator and signal recorder: [0004] First, only conventional leaking frames (RollingCounter) and checking data (Checksum) are supported, and specially defined leaking frames (RollingCounter) and checking data (Checksum) are not supported; [0005] Second, it supports node signal loss and node signal cycle c...

Claims

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Application Information

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IPC IPC(8): H04L12/26
CPCH04L43/0829H04L43/0847H04L43/50
Inventor 陈启生其他发明人请求不公开姓名
Owner ZHEJIANG LIBANG HEXIN INTELLIGENT BRAKING SYST CO LTD
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