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Diagnostic testing system based on CANoe

A diagnostic test, CAN bus technology, applied in the direction of comprehensive factory control, comprehensive factory control, electrical program control, etc., can solve problems such as the inability to confirm the response to the service request message and the inability to perform diagnostic tests.

Active Publication Date: 2010-12-15
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention also solves the problems in the prior art that the diagnostic test cannot be performed and the response of the ECU to the service request message cannot be confirmed without a diagnostic instrument, and a CANoe-based diagnostic test system is proposed

Method used

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  • Diagnostic testing system based on CANoe
  • Diagnostic testing system based on CANoe

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Embodiment

[0018] A diagnostic testing system based on CANoe, which includes an information reading unit 1, an information sending unit 8, an information analyzing unit 4, a simulation unit 6, and a storage unit.

[0019] The information reading unit 1 reads the service request message sent by the diagnostic instrument 2 and the service response message sent by the electronic control unit 3 .

[0020] The information sending unit 8 sends the service request message generated by the simulation unit 6 to the electronic control unit 3 . The diagnostic instrument 2 communicates with multiple electronic control units 3 through the CAN bus, and the diagnostic test system is connected to the CAN bus through a CAN transceiver 7 . The CAN transceiver 7 is a CANcaseXL.

[0021] The information parsing unit 4 parses the content information corresponding to the request message and the response message, and displays the content information through the display unit 5 . The display unit 5 refers to t...

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PUM

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Abstract

The invention relates a diagnostic testing system based on CANoe, comprising an information reading unit, an information analyzing unit and a simulation unit. The information reading unit reads service request messages sent by a diagnostic instrument and service response messages sent by an electronic control unit; the information analyzing unit analyzes content information which corresponds to the request messages and the response messages and displays the content information through a display unit; and the simulation unit simulates the diagnostic instrument to generate service request messages. The invention can examine detailed CAN (Controller Area Network) messages, and enables a tester to understand message transfer between the diagnostic instrument and the electronic control unit in detail. The invention can also record sent and received data for the checking of users and data preparation and analysis of testers. The invention can still carry out diagnostic testing operation if the diagnostic instrument is unavailable and verify the response condition of the electronic control unit to service request messages.

Description

technical field [0001] The invention relates to a diagnostic test system used in the development process of new vehicle models, in particular to a CANoe-based diagnostic test system. Background technique [0002] In the existing vehicle-mounted network, the controller area network CAN (controllerAreaNetwork) has been known and used more and more by people. At the same time, various development and testing tools for CAN bus emerge in an endless stream. Among them, CANoe, a product of German VECTOR Company, is a practical and powerful system-level bus development tool. [0003] During the development of new models, OEMs need to understand and confirm the diagnostic functions of each electronic control unit (ECU) and the status of the diagnostic instrument at the same time. The status of most electronic control unit (ECU) samples and diagnostic instrument samples is uncertain. When the diagnostic instrument and ECU produce errors, the error source cannot be confirmed, which gr...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 李书福杨健赵福全由毅陈文强黄博学李亚南熊想涛王建磊郑士岑蔡伟杰
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
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