车载局域互连网络在线诊断系统

Local Interconnect Network On Board Diagnostic System

车载局域互连网络(LIN)是适用于车内模块通信的低成本、短距离、低速网络。随着LIN的推广和普及,故障诊断、报文采集等工作已成为LIN应用中急待解决的问题。基于LIN通信协议,提出一种有效的LIN在线诊断方案,通过对传统的SCI模块与SLIC模块的研究,提出基于MC68HC908QL4单片机的报文采集节点系统。实践结果证明该系统是LIN研制、开发的有力工具。

The Local Interconnect Network（LIN） is a low cost, short distance, low speed automobile internal network. Network Fault Diagnosis and Frame Collection are desperately needed in LIN application as I.IN has been much more popularized than ever. It introduces LIN communication protocol and gives a LIN OBD system blue print, functions and characters of the SLIC module and program flowchart of a slave node based on MC68HC908QL4, comparing the SCI with SI.IC. Test in practice prove that this system is a powerful tool in LIN R＆D.