摘要
电控发动机控制系统(Electronic Control Unit,ECU)工作环境恶劣,不确定干扰源较多,严重影响控制系统的可靠运行。根据发动机控制系统所处的环境,文中分析了各种不同的干扰侵入方式,提出了控制系统抗干扰设计的一般原则。研究了空间场、供电系统、过程通道及软件的抗干扰技术,设计了软硬件配合使用的看门狗抗干扰电路,使发动机控制系统的可靠性和稳定性得到较大提高。
The working environment of electronic control unit （ECU） is quite poor, and more uncertain facts exist, which seriously affect the normal function of control system for electronically controlled engines. Based on the condition of control system, several disturbance modes are analyzed. A lot of design principles are put forward. Using the restrain technology, we discuss the anti- disturbance techniques of space field, supply power system, process channel and software. One anti-dlsturbance watch clog circuit is designed, which improves the reliability and stability of control system.
出处
《农业装备与车辆工程》
2007年第11期17-20,共4页
Agricultural Equipment & Vehicle Engineering
基金
山东省教育厅资助项目(项目编号:03B06)
