提出了一种基于 SAE J1939协议的车辆状态监测与故障诊断系统设计方案。系统主要由主控制器S3C2440和CAN控制器MCP2510组成；软件在嵌入式Linux平台下开发。该系统可以在线监测汽车各项运行参数和进行在线故障诊断，从而提高了车辆的安全性能。%A solution of monitoring vehicle conditions and fault diagnosis based on the SAE J1939 protocol is proposed. The system is mainly composed of the master controller S3C2440 and the stand-alone CAN controller MCP2510;and the software is developed in embedded Linux platform. The system can monitor the operating parameters of vehicle and do fault diagnosis on-line, which improves the safe operation of vehicles.
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