| 车用稀燃增压单一燃料CNG发动机电控系统的研究 |
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| 引用本文： | 张欣,夏渊,李国岫,周希德.车用稀燃增压单一燃料CNG发动机电控系统的研究[J].中国公路学报,2003,16(1):113-117. |
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| 作者姓名： | 张欣 夏渊 李国岫 周希德 |
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| 作者单位： | 北方交通大学,机械与电子控制工程学院,北京,100044 |
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| 基金项目： | 国家“九五”攻关项目 ( 99-A0 4-0 2 -0 2 -0 7) |
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| 摘 要： | 为深入研究 CNG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料 CNG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。
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| 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 |
| 文章编号： | 1001-7372(2003)01-0113-05 |
| 修稿时间： | 2002年4月16日 |
Study of electric control system for lean burn turbo-charged CNG vehicle engines |
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| ZHANG Xin,XIA Yuan,LI Guo xiu,ZHOU Xi de.Study of electric control system for lean burn turbo-charged CNG vehicle engines[J].China Journal of Highway and Transport,2003,16(1):113-117. |
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| Authors: | ZHANG Xin XIA Yuan LI Guo xiu ZHOU Xi de |
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| Abstract: | In order to study the lean burn combustion characteristics of CNG engines and reduce its harmful emissions profoundly,the electric control system used in turbo charged CNG vehicle engines is presented in this paper.In this system,the ignition energy of CNG engines is achieved by using high energy direct ignition system,and the exact AFR control in electronic controlled injection unit is achieved by using fuzzy controller so that the sequential multiple injection for CNG engines is realized.Finally,using this system to experiment the combustion and emission performance of CNG engine,result shows its effectiveness. |
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| Keywords: | automobile engineering CNG engine fuzzy control air fuel ratio(AFR) high energy ignition system |
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