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Open Access Article

Journal of Electrical Engineering and Automation. 2023; 2: (1) ; 1-4 ; DOI: 10.12208/j.jeea.20230001.

Design of embedded vehicle fault instrument based on OBD-II
基于OBD-II的嵌入式汽车故障诊断仪设计

作者: 陈军民 *

深圳市超越科技开发有限公司 广东深圳

*通讯作者: 陈军民,单位:深圳市超越科技开发有限公司 广东深圳;

发布时间: 2023-02-22 总浏览量: 425

摘要

本文首先介绍了汽车故障诊断仪的发展,然后介绍了OBD-II的基本操作方法,并根据诊断仪的技术要求,来给出了车辆故障诊断仪的基本设计方案,从而提出了一个现阶段使用较为普遍的第二代在线故障诊断技术(OBD-II)的便携式车辆故障诊断仪,该系统通过单片微型机件捕捉系统所提供的信息,经过协议解析和接口电路电平的调理,即可实现与车辆ECU之间的直接通讯,实现提取和消除车辆的故障码。本文所设计的诊断仪具有费用便宜、安全性好、使用方便、容易推广的优势。

关键词: OBD-II;嵌入式;汽车故障;诊断仪

Abstract

This paper first introduces the development of vehicle fault diagnosis instrument, and then introduces the basic operation method of OBD-II, and according to the technical requirements of the diagnostic instrument, to give the basic design scheme of vehicle fault diagnosis instrument, thus put forward a common second generation online fault diagnosis technology (OBD-II) portable the system, through the information provided by the system, through the protocol analysis and interface circuit level conditioning, can realize the direct communication with the vehicle ECU, extract and eliminate the vehicle fault code. The diagnostic instrument designed in this paper has the advantages of cheap cost, good safety, easy to use and easy to promote.

Key words: OBD-II; embedded; car fault; diagnostic instrument

参考文献 References

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[2] 赵静.基于OBD—Ⅱ的嵌入式汽车故障诊断仪设计[J].电子与封装,2013:43-47.

[3] 基于嵌入式的汽车故障诊断仪设计[D].南京理工大学,2010.

[4] 孟晓亮, 牛志刚, 展红亮. 基于ODB-Ⅱ的便携式汽车故障检测仪设计[J]. 中国仪器仪表, 2007(10):4.

[5] 刘刚. 一种基于OBD-II接口的汽车智能诊断定位设备:, CN204790560U[P]. 2015.

引用本文

陈军民, 基于OBD-II的嵌入式汽车故障诊断仪设计[J]. 电气工程与自动化, 2023; 2: (1) : 1-4.