摘要
文中介绍了一种基于单片机,以OBDⅡ标准为基础,遵循ISO-9141通信协议,与汽车电脑ECU进行通信,读取汽车故障码的汽车故障诊断辅助系统的设计与实现。与用软件使用PC机串口,通过OBDⅡ与RS232转换器与汽车电脑通信的方式相比,具有造价低,使用方便,性能稳定等优点。
In this paper, the design and implementation of automobile malfunction test assistant system are introduced. This system, which communicates with ECU to get the information of malfunction, is achieved based on MCU and OBDⅡ. Compared with traditional approach, which use RS232 transceiver and OBDII to communicate with automobile computer, test assistant system, proposed in this paper, has many advantages such as abundant measuring points, low price, easy to set up and maintain.
出处
《电子测量技术》
2006年第2期153-154,共2页
Electronic Measurement Technology
