Abstract: The electronic fan can be distributed on demand, effectively improving the efficiency of the engine cooling system and reducing the engine temperature in time. According to the working requirements of the electronic fan controller developed on the basis of the S9S08DZ60 single-chip microcomputer, this paper analyzes the programs required by each function, determines the configuration of the corresponding registers, and designs the various bottom control programs and overall framework programs. A series of software programs including sensor signal acquisition program, switch signal input program and CAN bus communication program, etc., to control the normal operation of the single-chip microcomputer to realize the control of the electronic fan and meet the actual application requirements.

Key words: Electronic fan; Software development; Programming; Register configuration

摘要： 电子风扇可以通过按需分配的方式工作，有效提高发动机冷却系统的效率，及时降低发动机温度。文章根 据以 S9S08DZ60 单片机为基础开发的电子风扇控制器的工作需求，分析了各个功能所需要的程序，确定了相应寄 存器的配置，设计出了各个底层控制程序及总体框架程序。包括传感器信号采集程序、开关量信号输入程序及 CAN 总线通讯程序等在内的一系列软件程序，从而控制单片机的正常运行，以实现对电子风扇的控制，并且满足实际应 用要求。

关键词: 电子风扇；软件开发；程序设计；寄存器配置