32位单片机控制的斯特林发动机燃油供给系统  

Stirling Engine Fuel Supply System Controlled by a 32-bit Microcontroller

作　　者：刘建新[1] 叶舒郁[1] 杜慧勇[1] 李民[1] 徐斌[1] 

机构地区：[1]河南科技大学车辆与动力工程学院,河南洛阳471003

出　　处：《河南科技大学学报（自然科学版）》2013年第4期26-30,5+4,共5页Journal of Henan University of Science And Technology:Natural Science

基　　金：河南省杰出人才创新基金项目(104200510006)

摘　　要：斯特林发动机燃油供给系统的快速调节和稳定控制是决定整机运行稳定性的基础,对燃油经济性和排放性能也有重要影响。采用32位ColdFire系列单片机作为主控单元构建了斯特林发动机燃油电控系统。对系统软硬件进行了设计,移植了μC/OS-Ⅱ嵌入式实时操作系统。针对控制要求,建立了包括以太网通信在内的各个任务模块,并对该系统工作情况进行了测试。试验结果表明:燃油压力和流量调节的响应时间均低于0.5 s,稳定工况下流量变动幅值最大不超过0.4 kg/h,该系统具有控制精度高、工作性能稳定的特点。In this paper,the electrically controlled fuel supply system of stirling engine by using a 32-bit ColdFire microcontroller as its main control chip was introduced.The system hardware and software were designed.The μC/OS-Ⅱreal-time operating system was transplanted into the microcontroller along with the establishment of every task module including the ethernet communication module.Test results show that the control unit has fast response speed and high control precision.The response time of fuel pressure and flow rate control are all within 0.5 s and the variation amount of flow rate is lower than 0.4 kg / h under the steady condition.The fuel supply system is stable and reliable.

关 键 词：斯特林发动机 MCF52235 EVB 燃油供给系统 μC OS-Ⅱ 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置] TK323[自动化与计算机技术—控制科学与工程]