| 降低准均质稀燃汽油机NOx排放的电控系统研制 |
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| 引用本文： | 李志军,张广宇,刘书亮,王莉,刘德新,刘伍权. 降低准均质稀燃汽油机NOx排放的电控系统研制[J]. 燃烧科学与技术, 2004, 10(5): 400-404 |
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| 作者姓名： | 李志军 张广宇 刘书亮 王莉 刘德新 刘伍权 |
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| 作者单位： | 天津大学机械工程学院,天津,300072 |
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| 基金项目： | 国家自然科学基金资助项目(50276042);国家自然科学基金重点资助资目(59936130). |
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| 摘 要： | 为了配合稀NOx吸附-还原催化转化器的正常工作,开发了一套稀燃汽油机电控系统.该系统不仅可以任意设定汽油机浓、稀燃的空燃比大小和间隔时间长短,而且可以使稀NOx吸附-还原催化转化器在稀燃时,控制汽油机按稀燃状态运行;而在浓燃还原再生过程中,电控系统自动调小节气门开度和点火提前角,使得汽油机对外输出的扭矩稳定.将该系统应用于一台丰田8A-FE16气门EFI汽油机,实验结果表明,研制的稀燃电控系统,达到了设计的要求.
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| 关 键 词： | 准均质稀燃汽油机 NOx排放 吸附-还原催化 |
| 文章编号： | 1006-8740(2004)05-0400-05 |
| 修稿时间： | 2004-05-14 |
An Electronic Control System Development of Reducing NOx Emission in a Quasi-Homogeneous Lean Burn Gasoline Engine |
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| LI Zhi-jun,ZHANG Guang-yu,LIU Shu-liang,WANG Li,LIU De-xin,LIU Wu-quan. An Electronic Control System Development of Reducing NOx Emission in a Quasi-Homogeneous Lean Burn Gasoline Engine[J]. Journal of Combustion Science and Technology, 2004, 10(5): 400-404 |
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| Authors: | LI Zhi-jun ZHANG Guang-yu LIU Shu-liang WANG Li LIU De-xin LIU Wu-quan |
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| Abstract: | For the special requirements from NO_x adsorber-reduction catalyst, an electronic control system was developed. The system can set different A/F and time interval. In the rich oxygen burn condition, the system controls the engine to operate lean burn running.In the reduction condition, the system reduces the opening of throttle and advances ignition timing automatically in order to obtain constant output power. The system was experimented on Toyota 8A-FE16 valves EFI lean burn gasoline engine, and the results showed that the system meet the requirements of NO_x adsorber-reduction catalyst operation. |
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| Keywords: | quasi-homogeneous lean burn gasoline engine NO_x emission adsorber-reduction catalyst |
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