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Automatic network diagnosis test system for automobile electric control unit and test method thereof

A technology of automotive electronic control unit and automation network, applied in the direction of test/monitoring control system, general control system, electrical test/monitoring, etc., can solve problems such as missing gaps, reduce test cost, improve traceability, and shorten test cycle effect

Active Publication Date: 2021-04-27
DONGFENG OFF ROAD VEHICLE CO LTD
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Problems solved by technology

Component-level diagnostic tests are currently basically in a blank state

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  • Automatic network diagnosis test system for automobile electric control unit and test method thereof

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Embodiment Construction

[0017] The following specific embodiments are used to further describe the technical solution of the claims of the present invention in detail, so that those skilled in the art can understand the claims more clearly. The protection scope of the present invention is not limited to the following specific examples. The protection scope of the present invention includes the technical solution of the claims of the present invention made by those skilled in the art and is different from the following specific embodiments.

[0018] Such as figure 1 As shown, a kind of automatic network diagnosis and testing system of automobile electronic control unit includes the electronic control unit 7 to be tested. The communication connection of the board 5, the automatic test board 5 is electrically connected with the program-controlled power supply 1, the automatic test board 5 is also connected to the CAN analyzer 3 through the CAN line communication, the CAN analyzer 3 is connected to the ...

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Abstract

The invention discloses an automatic network diagnosis test system for an automobile electric control unit, which comprises an electric control unit to be tested. The electric control unit to be tested is connected with an automatic test board card, the automatic test board card is electrically connected with a programmable power supply, the automatic test board card is also in communication connection with a CAN analyzer, the CAN analyzer is connected with an upper computer, and the upper computer is connected with the programmable power supply. The invention further provides a test method based on the automatic network diagnosis test system for the automobile electronic control unit. The test method comprises a physical layer function test method and a message consistency test method. The test system builds a set of complete test environment, carries out advanced test verification based on a protocol conformance level on each main electric control unit of the whole vehicle CAN network before the vehicle enters a trial-manufacture stage, and is loaded with a unified test standard and a unified test process, so that the traceability of the test process and the effectiveness of the test result are greatly improved, and the test cost is reduced.

Description

technical field [0001] The invention relates to the technical field of automobile testing, in particular to an automatic network diagnosis testing system and a testing method for an electronic control unit of an automobile. Background technique [0002] The current off-road vehicles mainly use the SAEJ1939 series communication protocol and UDS diagnostic protocol. It is difficult for the main engine factory to control the component testing work of various suppliers, and the test implementation is mainly based on review reports, and the implementation effect is very poor; due to the current situation such as the limited energy of the engineers of the main engine factory, the efficiency of independent implementation of component testing is low, and usually the component-level testing link is in the In the extreme lack of state, a large number of component-level fault problems were brought to the prototype vehicle trial production process and concentrated outbreaks, and then st...

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065
Inventor 杨龙付华芳杨国超高瑶瑶王钦
Owner DONGFENG OFF ROAD VEHICLE CO LTD
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