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Method, system and storage medium for checking automotive can bus error frames

A CAN bus and error frame technology, which is applied in the field of checking automotive CAN bus error frames, can solve problems such as controller troubleshooting difficulties

Active Publication Date: 2021-12-14
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the vehicle has been assembled, it is difficult to disconnect the controller from the CAN bus for troubleshooting, making it difficult to locate the faulty controller

Method used

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  • Method, system and storage medium for checking automotive can bus error frames
  • Method, system and storage medium for checking automotive can bus error frames
  • Method, system and storage medium for checking automotive can bus error frames

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Embodiment Construction

[0042] Reference will now be made in detail to specific embodiments of the invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with specific embodiments, it will be understood that it is not intended to limit the invention to the described embodiments. On the contrary, it is intended to cover alterations, modifications and equivalents as included within the spirit and scope of the invention as defined by the appended claims. It should be noted that the method steps described here can all be realized by any functional block or functional arrangement, and any functional block or functional arrangement can be realized as a physical entity or a logical entity, or a combination of both.

[0043] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embo...

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Abstract

The invention discloses a method, a system and a storage medium for checking an automobile CAN bus error frame. The method for checking the error frame of the automobile CAN bus network includes the following steps: when obtaining an error frame in the automobile CAN bus network, identifying the network segment to be tested where the error frame is located; The electronic controller to be tested corresponding to the segment; the switch / relay preset on the electronic controller to be tested is controlled to be disconnected; when the error frame in the CAN bus network of the vehicle is detected to disappear, it is confirmed that the electronic controller to be tested is the target electronic control device. The present invention can relatively easily check and locate the controller with the error frame after the vehicle assembly is completed.

Description

technical field [0001] The invention relates to the technical field of automobile detection, in particular to a method, system and storage medium for inspecting error frames of an automobile CAN bus. Background technique [0002] At present, the CAN (Controller Area Network, Controller Area Network) bus network is widely used in automobiles, and with the development of the automobile industry, more and more controllers equipped with the CAN bus will become available. The reliability of the CAN bus is very high, but errors still occur in some cases. CAN bus errors are divided into: CRC (Cyclic Redundancy Check, cyclic redundancy check) error, format error, response error, bit transmission error, bit filling error; when an error occurs, an error frame will be generated on the CAN bus. The error frame is also a type of CAN bus data frame, which is the frame format sent when a certain component fails or the CAN bus detects a certain node error. The generation of error frames i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/40H04L12/24H04L12/12
CPCH04L12/40006H04L41/0677H04L12/12H04L2012/40215H04L2012/40273
Inventor 黄镨杨锦杨东
Owner DONGFENG MOTOR CORP HUBEI
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