汽油机爆震自动控制系统研究  

Study on an Automatic Knock Control System for Gasoline Engine

作　　者：李继军[1] 陈宝书[1] 武得钰[2] 顾笑映 周龙保[2] 

机构地区：[1]中国矿业大学工商管理学院,江苏徐州221008 [2]西安交通大学汽车工程系,陕西西安710049

出　　处：《系统工程理论与实践》2000年第6期115-117,共3页Systems Engineering-Theory & Practice

基　　金：国家自然科学基金资助项目 !( 594 0 60 0 4 )

摘　　要：介绍了一种汽油机爆震自动控制系统 ,该系统将经过带通滤波后具有爆震频率特征的缸内压力波峰值作为衡量爆震强度的指标 ,通过实验判别爆震发生的门坎值 ,采用统计方法确定爆震强度 ,依靠控制点火提前角使发动机工作在轻微爆震状态 。An automatic knock control system is introduced, the peak value of cylinder pressure wave with knock frequency characteristics, after band\|pass filtering,is defined as the index to quantity knock intensity, the threshold value to judge knock occurrence is determined by experiments, statistic method is used to determine knock intensity, the spark advance angle is controlled to make the engine work in the trace knock level, and the fuel efficiency and power output of the engine have been improved.

关 键 词：汽油机 爆震 自动控制系统 非正常燃烧 

分 类 号：TK411.22[动力工程及工程热物理—动力机械及工程]