摘要
介绍了便携式车用加热器故障诊断仪的工作原理,提出了以可编程片上系统PSoC为核心,LCD液晶显示与EEPROM存储器为输出单元的诊断仪设计。实现对车用加热器的实时工作状态与故障信息在线显示,对各运行参数与故障进行离线分析,还可以提示故障维修建议等。根据PSoC的结构特点,提出了利用设置用户模块来实现与各外围器件的UART、SPI、I2C多种通信方式,完成故障的诊断、显示以及数据的存储。PSoC的硬件和软件设计特点极大的简化了系统研发的复杂性,提高了稳定性和可靠性。
This paper introduces the working principles of automobile heater fault diagnosis instrument, which is designed to use PSoC （programmable system on chip） as CPU and LCD ＆ EEPROM as output units. This instrument can realize the real time display of the heater＇ s working state and fault information, analyze all kinds of parameters off line and give repair suggestions. Take use of the user modules of UART, SPI, I2C to finish the diagnosis, display and data storage task. The application of PSoC predigests the design of circuit and improves the stability of controller.
出处
《内燃机与动力装置》
2009年第1期36-40,共5页
Internal Combustion Engine & Powerplant
