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Non-vehicle-mounted charger protocol conformance test and message automatic analysis system thereof

A technology of automatic message analysis and charging, which is applied in the direction of measuring electricity, measuring devices, and measuring electrical variables. It can solve problems such as undiagnosed problems, low work efficiency, and heavy workload, so as to reduce the risk of errors and reduce detection. time, easy to detect the effect of use

Active Publication Date: 2021-12-31
成都产品质量检验研究院有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The number of test cases in the national standard is limited, and it is impossible to simulate all the situations that may be encountered in the actual charging process; and some requirements in the national standard are not specific enough, leaving room for all parties to adopt various technical paths to achieve the same requirements. The current The test system cannot test the compliance of all technical paths
The current test system cannot complete the collection, recording, storage, and recurring simulation test of communication messages during the actual vehicle and pile charging process
[0006] 2. The current test system can only capture the specific communication messages required by the standard and judge the compliance of the standard, and lacks the automatic frame-by-frame real-time analysis function of the meaning of all communication messages; The problem cannot be judged, and it may also cause the system to misjudge the test cases in the standard
R&D personnel and testing personnel need to manually analyze the meaning of non-standard packets frame by frame and then find problem points. The workload is huge and the work efficiency is very low.

Method used

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  • Non-vehicle-mounted charger protocol conformance test and message automatic analysis system thereof
  • Non-vehicle-mounted charger protocol conformance test and message automatic analysis system thereof
  • Non-vehicle-mounted charger protocol conformance test and message automatic analysis system thereof

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Experimental program
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Embodiment 1

[0045] Such as figure 1 - As shown in 3, the embodiment of the present invention provides a non-vehicle charger protocol conformance test and its message automatic analysis system, including a communication-connected upper computer and a lower computer;

[0046] The upper computer is used to detect the communication and control connection status with the lower computer, build a test case database, send an analog control signal to the lower computer according to the test case, receive the communication message information collected by the lower computer and implement the non-vehicle charger communication protocol. Consistency judgment;

[0047]The lower computer is used to physically connect with the off-board charger to be tested, to simulate the connection state change of the internal charging circuit and control circuit of the electric vehicle during the charging process of the off-board charger, and to generate a communication protocol consistency test according to the anal...

Embodiment 2

[0075] On the basis of Embodiment 1, this embodiment further includes a vehicle plug and a cable assembly, which are used to physically connect the communication line module and the high voltage and control line module with the electric vehicle;

[0076] The communication line module also includes a communication simulation control unit, and the communication simulation control unit is used to record the communication report between the electric vehicle and the off-board charger during the entire charging process after the off-board charger completes the entire charging process for the electric vehicle. text, and store the recorded communication message as a typical charging case and send it to the host computer;

[0077] The host computer is also used to construct a database of typical actual charging cases based on typical charging cases recorded during the charging behavior between different off-board chargers and different vehicles during the entire charging process.

[00...

Embodiment 3

[0091] In this embodiment, on the basis of Embodiment 2, the host computer is further used to process the typical charging case data in the typical actual charging case library database to generate a recurring simulation simulation test family; call the recurring simulation simulation test family Send the simulation simulation control signal to the communication simulation control unit and the battery management system protocol consistency signal simulation generator; judge whether the non-vehicle charger can complete all the normal charging processes according to the recurring simulation simulation test message;

[0092] The communication simulation control unit and the battery management system protocol conformance signal simulation generator are used to generate a recurring simulation test message according to the simulation control signal.

[0093] Based on the system described in Embodiment 3, the method for performing recurring simulation simulation tests on off-vehicle c...

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Abstract

The invention discloses a non-vehicle-mounted charger protocol conformance test and a message automatic analysis system thereof. The system comprises an upper computer and a lower computer which are in communication connection. According to the method, the protocol conformance test requirements within the national standard range can be met, non-standard test cases can be added and edited at will according to the research and development and detection requirements, and the problems of insufficient test cases and conformance verification of different technical paths in the research and development and detection process at present are solved; real-time automatic analysis of communication messages in the charging process of an electric vehicle and a non-vehicle-mounted charger, actual field collection and recording of the communication messages and storage can be completed, a typical actual charging case library can be formed, and cases in the case library can be called to perform reproduction simulation test on different non-vehicle-mounted chargers; and the risk of errors of non-vehicle-mounted charger products during on-site operation can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of electric vehicle charging facility detection, in particular to a non-vehicle charger protocol consistency test and an automatic message analysis system thereof. Background technique [0002] Off-board chargers (commonly known as DC charging piles) belong to the charging infrastructure and are one of the main facilities for providing electric energy supply for electric vehicles. Charging compatibility issues and related safety issues between off-board chargers and electric vehicles have been plaguing car companies, operators and charging facility manufacturers. Communication protocol conformance testing is an effective means to reduce charging compatibility issues and related safety issues between off-board chargers and electric vehicles. In order to ensure that off-board chargers can charge different types of electric vehicles normally; at the same time, to ensure the safety of the charging process, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 章庆科艾劼刘啸尘张喜翠黄思为王瑄苟智军
Owner 成都产品质量检验研究院有限责任公司
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