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Automatic testing method and system for internal calibration table of automobile ECU

An automated testing and automotive technology, applied in testing/monitoring control systems, general-purpose control systems, electrical testing/monitoring, etc., to solve problems such as difficulty in effectively, quickly and accurately testing the internal calibration table of automotive ECUs

Active Publication Date: 2019-07-02
GREAT WALL MOTOR CO LTD
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Problems solved by technology

[0005] In view of this, the present invention aims to propose an automated testing method and system for an automotive ECU internal calibration table, to at least solve the problem in the prior art that it is difficult to effectively, quickly and accurately test the automotive ECU internal calibration table

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  • Automatic testing method and system for internal calibration table of automobile ECU
  • Automatic testing method and system for internal calibration table of automobile ECU
  • Automatic testing method and system for internal calibration table of automobile ECU

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Embodiment Construction

[0037] It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0038] The present invention will be described in detail below with reference to the drawings and in combination with embodiments.

[0039] see figure 1 Shown is the flow chart of the automated testing method of the automotive ECU internal calibration table of an embodiment of the present invention, and this method can be carried out by automated testing equipment, and this method specifically comprises:

[0040] S101. Obtain test information, and generate a test case according to the test information, wherein the test information includes coordinate axis data of a calibration table.

[0041] It should be noted that the coordinate axis data of the calibration table refers to the data corresponding to the calibration table inside the automotive ECU. Generally, the calibration table data can be divided into X-axi...

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PUM

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Abstract

The invention, which relates to the technical field of vehicle testing, provides an automatic testing method and system for an internal calibration table of an automobile ECU. The automatic testing method comprises: acquiring test information including calibration table coordinate axis data and generating a test case according to the test information; on the basis of the test case, calibrating a calibration table inside an automobile ECU; determining an expected value about the test case; acquiring an actually measured value of the response to the test case by the automobile ECU; and comparingthe expected value with the actually measured value to test the calibration table of the automobile ECU. With the provided automatic testing method, the internal calibration table of the automobile ECU can be tested specially and automatically; defects of the automobile ECU unit test are overcome; and the test efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle testing, in particular to an automatic testing method and system for an internal calibration table of an automotive ECU. Background technique [0002] The calibration table (MAP) is a table used for the variable mapping relationship in the ECU (Electronic Control Unit, electronic control unit) control strategy built based on Simulink. In the development process of the vehicle controller, the test of MAP is generally integrated in the unit test, and there is no special test plan for the calibration table MAP at present. [0003] The inventor of the present application found the following defects in the prior art during the practice of the application: since the calibration table MAP is developed based on Simulinlk software, the Simulinlk table lookup algorithm may have problems caused by some human factors, such as: table lookup coordinates Axis error. Moreover, for each MAP test point in the ECU...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0221
Inventor 董晗杨波李雷
Owner GREAT WALL MOTOR CO LTD
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