| LPG发动机λ闭环控制系统 |
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| 引用本文： | 刘益芳,孙道恒,张为公.LPG发动机λ闭环控制系统[J].厦门大学学报(自然科学版),2004,43(1):60-62. |
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| 作者姓名： | 刘益芳 孙道恒 张为公 |
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| 作者单位： | 1. 厦门大学机电工程系,福建,厦门,361005
2. 东南大学仪器科学与工程系,江苏,南京,210096 |
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| 摘 要： | 为了有效地减少LPG(液化石油气)发动机的尾气排放,设计了空燃比闭环控制原理,分析了PI控制策略的具体实现过程,最后给出了试验结果,结果表明:闭环控制和PI策略的结合可以将空燃比稳定在理论值附近,从而大大降低了3种尾气的排放.
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| 关 键 词： | LPG发动机 空燃比 闭环控制 PI策略 |
| 文章编号： | 0438-0479(2004)01-0060-03 |
| 修稿时间： | 2002年12月25 |
The λ Closed-loop Control System of an LPG Engine |
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| LIU Yi-fang,SUN Dao-heng,ZHANG Wei-gong.The λ Closed-loop Control System of an LPG Engine[J].Journal of Xiamen University(Natural Science),2004,43(1):60-62. |
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| Authors: | LIU Yi-fang SUN Dao-heng ZHANG Wei-gong |
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| Institution: | LIU Yi-fang~1,SUN Dao-heng~1,ZHANG Wei-gong~2 |
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| Abstract: | In order to reduce exhaust emissions of the LPG engine, the principle of air-fuel ratio closed loop control is first designed in this paper. Then the concrete implementation of PI strategy is analyzed. And the experimental result indicates that the combination of closed loop control and PI strategy can remain the air-fuel ratio near its stoichiometric value. |
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| Keywords: | LPG engine air-fuel ratio closed loop control PI strategy |
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