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Communication abnormality diagnosis method and device and vehicle

A technology of communication abnormality and diagnosis method, which is applied in the field of device and vehicle, communication abnormality diagnosis method, and can solve the problem of low accuracy

Active Publication Date: 2021-03-16
BEIJING CHJ AUTOMOTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, the communication abnormality diagnosis formula in the prior art may produce misdiagnosis in some cases, and the accuracy rate is not high

Method used

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  • Communication abnormality diagnosis method and device and vehicle
  • Communication abnormality diagnosis method and device and vehicle
  • Communication abnormality diagnosis method and device and vehicle

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Embodiment Construction

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0054] The term "and / or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character " / " in this paper generally indicates that the contextual objects are an "or" relationship; in the formula, the character " / " indicates that ...

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Abstract

The embodiment of the invention provides a communication abnormality diagnosis method and device and a vehicle, relates to the technical field of communication, and is used for improving the accuracyof communication abnormality diagnosis. The method comprises the following steps: dividing each service into a first service set and a second service set according to a communication mode between a sending end and a receiving end for realizing each service, wherein the first service set and the second service set are respectively a set consisting of services of which the communication modes are afirst communication mode and a second communication mode; after the service of the first communication mode establishes communication connection between the sending end and the receiving end, enablingthe sending end to send an effective message to the receiving end based on time; after the service of the second communication mode establishes communication connection between the sending end and the receiving end, enabling the sending end to send an effective message to the receiving end only when there is a service; diagnosing whether the communication of each service in the first service setis abnormal or not according to a first diagnosis mode; and diagnosing whether the communication of each service in the second service set is abnormal or not according to the second diagnosis mode. The embodiment of the invention is used for communication abnormality diagnosis.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a communication abnormality diagnosis method, device and vehicle. Background technique [0002] The development of the modern automobile industry has introduced the automotive Controller Area Network (CAN) bus technology. On the basis of satisfying the automotive distributed system-level communication, the CAN bus has established the functions of automotive bus communication, diagnosis and refresh. Has been widely used. [0003] CAN communication failure is a relatively common failure in the CAN bus. For the communication between the controller and the sensor through the CAN network, this failure will cause the controller to receive wrong data or lose data, thereby affecting the judgment of the controller, or even Serious safety accidents may result. In order to diagnose CAN communication faults, in the prior art, time-based detection is generally used to realize whether ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/26B60R16/023
CPCH04L41/06H04L43/50B60R16/0232
Inventor 牛建彬
Owner BEIJING CHJ AUTOMOTIVE TECH CO LTD