文档介绍：维普资讯
第 16卷第 1期中国公路学报 V
2003年 1月 ChinaJournal ofHighway and Transport
文章编号:1001—7372(2003)01一O儿3一O5
车用稀燃增压单一燃 G 发动机电控系统的研究
张欣,夏渊,李国岫,周希德
(北方交通大学机械与电子控制工程学院,北京 100044)
摘要:为深入研 G 发动机稀薄燃烧特性,进一步降低天然气发动机的有害排放,设计了车用
增压天然气发动机电控系统。该系统采用高能点火模块来获得天然气着火所需的点火能量,电控喷射
单元采用模糊控制器来获得比较精确的空燃比控制,实现对天然气发动机的顺序多点喷射。运用该系
统对增压单一燃 G 发动机的燃烧和排放性能进行了试验研究,结果表明了该系统的有效性。
关键词:汽车工程;天然气发动机;模糊控制;空燃比;高能点火模块
中图分类号: 文献标识码:A
Study of electric control system for lean burn turb0一charged
CN G vehicle engines
ZHA NG Xin,XIA Yuan,I IGUO—xiu,ZHO U Xi—de
(Schoolof Mechanical and ElectricalControl Engineering,NorthernJiaotong University,Beijing 100044。China)
Abstract:In order to study the lean bustion characteristics G engines and reduce
its harmfulits emissions profoundly,the electric control system used in turbo— G vehicle
engines is presented in this this system,the ignition energy G engines is achieved
by using high—energy direct ignition system,and the exact AFR control in electronic controlled
injection unitinjectionachievedis by using fuzzy controller SO that the sequential multiple injection for
CNG engines is ,using this system to experiment bustion and emission
performance G engine,result shows its effectiveness.
Key words:automobile engineering; CNG engine; fuzzy control;air fuel ratio(AFR );high—
en