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Controller area network signal transmission verifying method and system for automobile controller

A signal transmission and verification method technology, applied in the field of automobile manufacturing, can solve the problems of evaluating the application software CAN interface function, missed judgment, and the test method cannot fully and accurately evaluate the signal mapping relationship, etc., so as to avoid the phenomenon of missed judgment.

Inactive Publication Date: 2015-05-27
BEIJING BORGWARD AUTOMOBILE CO LTD
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  • Description
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Problems solved by technology

[0003] The traditional test method usually selects points at random, generally 3 to 5 points, and then observes the internal response of the controller program application software, but this test method cannot completely and accurately evaluate whether the signal mapping relationship is normal
Even if the points are more than 10 points, it is impossible to comprehensively and systematically evaluate the CAN interface function of the application software, and there may be missed judgments

Method used

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  • Controller area network signal transmission verifying method and system for automobile controller
  • Controller area network signal transmission verifying method and system for automobile controller
  • Controller area network signal transmission verifying method and system for automobile controller

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0029] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element refe...

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Abstract

The invention provides a controller area network (CAN) signal transmission verifying method for an automobile controller. The CAN signal transmission verifying method for the automobile controller comprises the following steps: according to the CAN signal, obtaining the first value range of the transmission of the CAN signal between a CAN bus and the bottom procedure of the controller, the second value range of the transmission between the bottom procedure and the intermediate port of the controller and the third value range of the transmission between the intermediate port and the application procedure of the controller; according to each value range, generating a test valve sequence; sending the corresponding the test value from the test valve sequence to the controller; according to the test value, generating the corresponding feedback value by the controller; and according to the test value and the feedback value, judging whether the CAN signal transmission of the controller is normal. The embodiment is capable of roundly and systemically detecting the CAN signal transmission of the controller, and avoiding the phenomenon of missed sanction. The invention further provides a CAN signal transmission verifying system for the automobile controller.

Description

technical field [0001] The invention relates to the technical field of automobile manufacturing, in particular to a CAN signal transmission verification method and system for a controller of an automobile. Background technique [0002] Before testing the application software functions of the controller, it is first necessary to ensure that the controller can correctly send and receive CAN (controller area network) and IO signals. It is necessary to use a CAN emulator to test whether the signals on the CAN hard line can be correctly mapped to Inside the controller program application software (the part of the code in the controller program that has the actual application function). [0003] The traditional test method is usually to randomly select points, generally 3 to 5 points, and then observe the internal response of the controller program application software, but this test method cannot completely and accurately evaluate whether the signal mapping relationship is normal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/38
CPCG05B23/0208
Inventor 黄颖华张君鸿艾名升王华杰马丽娜
Owner BEIJING BORGWARD AUTOMOBILE CO LTD
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