CAJ | 학술논문

通过对ISO 9141诊断通信协议的分析,针对使用该协议的汽车车载诊断(OBD)系统,开发了协议转换电路板、基于PC机的汽车故障诊断应用软件.它通过数据连接口(DLC)与车载电控单元(ECU)通信,以获取故障诊断数据.软件部分的设计采用Visual C++编程,这使串口通信模块能够为应用程序提供良好的软件接口,达到更好地处理数据、分析数据的目的.诊断软件采用了基于对话框的MFC编程,实现对诊断信息采集、故障码读取和消除、数据流显示和分析、实时动态曲线展示的功能.
통과대ISO 9141진단통신협의적분석,침대사용해협의적기차차재진단(OBD)계통,개발료협의전환전로판、기우PC궤적기차고장진단응용연건.타통과수거련접구(DLC)여차재전공단원(ECU)통신,이획취고장진단수거.연건부분적설계채용Visual C++편정,저사천구통신모괴능구위응용정서제공량호적연건접구,체도경호지처리수거、분석수거적목적.진단연건채용료기우대화광적MFC편정,실현대진단신식채집、고장마독취화소제、수거류현시화분석、실시동태곡선전시적공능.
By analyzing ISO 9141 diagnostic protocol, we developed a protocol conversion circuit board and PC was developed based on diagnosis applications, toward on-board diagnostic (OBD) system on vehicles which use this protocol. Diagnostic data was collected by communicating with Vehicle Electronic Control Unit, which use the Data Link Connector(DLC). Software components was designed with Visual C++ programming, which makes serial communication module can provide a good application software interface to achieve a better processing of data and analysis of data purposes. Diagnostic software using MFC dialog-based programming, to achieve diagnostic information collection, including fault code reading and eliminating, data flow display and analysis, real time dynamic curves show functions.