喷油速率测试控制系统设计与开发

Design of Injection Rate Test System and Study of Injection Characteristics

使用NI CompactRIO控制器设计了基于长管法喷油速率测试装置的燃油喷射系统,利用FPGA可重复配置的优势,设计包括了压力数据采集、喷油器驱动、高压共轨压力闭环控制以及数据采集同步触发系统等功能。最后,在不同喷油量下进行了喷油速率测试实验,说明系统能够较准确地控制燃油喷射并对其速率进行精确地测量。

We have adopted CompactRIO to collect pressure signals and taken advantage of the FPGA to develop a fuel injection system,which is helpful to change the injection pressure and injection duration. As a result,we can research the injection rate in many different conditions. The results show that the injection rate test system is a high accurate measurement.