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A network automatic test system and method of commercial vehicle obd diagnostic equipment

A technology for automated testing and diagnostic equipment, applied in electrical testing/monitoring and other directions, it can solve the problems of difficulty in manufacturing fault codes and vehicle data, cannot be covered, and the efficiency of manual verification is low, so as to improve test efficiency and accuracy and avoid errors. Effect

Active Publication Date: 2019-09-03
CHINA FIRST AUTOMOBILE
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Problems solved by technology

This test method has the following problems: it depends on the development progress of the ECU and the whole vehicle, and the intervention time is relatively late; in the real ECU environment, some fault codes and vehicle data are difficult to manufacture and cannot cover the forward test; in the real ECU environment, it cannot be covered Reverse testing such as negative response and abnormal response; manual verification method is inefficient and cannot guarantee high precision and reliability requirements

Method used

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  • A network automatic test system and method of commercial vehicle obd diagnostic equipment
  • A network automatic test system and method of commercial vehicle obd diagnostic equipment
  • A network automatic test system and method of commercial vehicle obd diagnostic equipment

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Embodiment Construction

[0021] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0022] figure 1 A schematic structural diagram of the network automated test system of the commercial vehicle OBD diagnostic equipment provided by the embodiment of the present invention; figure 2 A schematic structural diagram of the main control device of the network automated test system of the commercial vehicle OBD diagnostic equipment provided by the embodiment of the present invention; image 3 It is a schematic structural diagram of the test script library module of the main control device of the network automation test system of commercial vehicle OBD diagnostic equipment provided by the embodiment of the present invention.

[0023] Such asfigure 1 As shown, the network automated test system for commercial vehicle OBD diagnostic equipment prov...

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Abstract

The invention provides a commercial vehicle OBD diagnostic device network automation test system which comprises a main control device, a power supply control device, a CAN communication device and a tested OBD diagnostic device. The main control device selects a corresponding test script based on a diagnostic request sent by the tested OBD diagnostic device to call the power supply control device to power the tested OBD diagnostic device, and calls the CAN communication device to send a corresponding CAN diagnostic response message to the tested OBD diagnostic device. The tested OBD diagnostic device receives the diagnostic response message sent by the CAN communication device and generates diagnostic result data. The invention further provides a commercial vehicle OBD diagnostic device network automation test method. According to the invention, the system can automatically test the tested OBD diagnostic device in a simulation ECU environment at the initial stage of vehicle development, is independent of a real ECU environment, and can automatically execute test cases and result judgment; manual test errors are avoided; and the test efficiency and accuracy are improved.

Description

technical field [0001] The invention relates to an automatic test system and a method thereof, in particular to a network automatic test system of commercial vehicle OBD diagnostic equipment and a method thereof. Background technique [0002] With the continuous development of automotive electronics technology, more and more electronic control units (ECUs) are deployed on commercial vehicles. ECUs cooperate with each other through CAN bus communication to form complex functional architectures and network topologies to achieve increasing functional configurations. At the same time, it also causes ECU to contain more faults, function configuration and detection items. At present, commercial vehicles are equipped with an on-board diagnostic system (OBD). The diagnostic equipment communicates with each ECU through the OBD diagnostic interface, and is used to realize functions such as vehicle fault reading, parameter configuration, program update, and vehicle self-inspection, whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
Inventor 闫新汤利顺刘丽敏马伯祥孟超李长龙杨彦召
Owner CHINA FIRST AUTOMOBILE
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