基于PWM的柴油机共轨式电控系统

作者：李 慧1，朱德文2 日期：2008-04-22/span> 浏览：3047 查看PDF文档

基于PWM的柴油机共轨式电控系统
李 慧1，朱德文2
(1.安徽科技学院 工学院，安徽 凤阳 233100； 2.农业部 南京农业机械化研究所，江苏 南京 210014)

摘 要：采用脉宽调制信号对二位三通高速电磁开关阀进行驱动控制，能够灵活地对喷油量、喷油正时进行控制，采用PWM控制方式对柴油机共轨式电控系统进行控制。主要分析了柴油机共轨式电控燃烧油喷射系统关键部件——高速开关电磁阀的结构、PWM控制原理，以及由电控单元所产生的脉宽调制信号控制下的高速开关电磁阀动态响应特性。
关键词：高速电磁开关阀；柴油机；共轨；脉宽调制

Electronic control system of diesel common rail based on PWM
LI Hui1, ZHU Dewen2
（1.College of Engineering, Anhui Science and Technology University, Fengyang 233100, China;
2.Nanjing Research Institute For Agricultural Mechanization, Ministry of Agriculture, Nanjing 210014, China）

Abstract: Using PWM to control the dualistic three way highspeed solenoid valve, it has the flexibility to be able to fuel injection quantity, fuel injection control in time. The control process of diesel common rail electronic control system was studied by PWM, main in the structure of highspeed switch, PWM principle, the dynamic response of the highspeed switch controlled by PWM signal, which was produced by the electronic control unit.
Key words: highspeed solenoid on/off valve; diesel engine; common rail; pulsewidth modulation (PWM)