| 空气反馈信号控制柴油机排气再循环系统研究 |
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| 引用本文： | 侯玉春,肖福明,陆辰,黄震. 空气反馈信号控制柴油机排气再循环系统研究[J]. 内燃机工程, 2004, 25(1): 9-12 |
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| 作者姓名： | 侯玉春 肖福明 陆辰 黄震 |
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| 作者单位： | 1. 上海交通大学,机械与动力工程学院,上海,200030
2. 山东大学,能源与动力工程学院 |
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| 基金项目： | 山东省中青年科学家奖励基金，霍英东基金资助(71054)，教育部回国人员起动基金资助(2001.498) |
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| 摘 要： | 建立了一种排气再循环变EGR率控制系统。以新鲜空气质量流量信号代替EGR率或再循环排气量信号作为反馈信号，该系统模型，通过调节EGR阀门，改变再循环排气量，相应改变进入气缸内的新鲜空气量，使之基本达到相应工况控制要求值。在四种转速负荷条件下，对有、无这种EGR系统的SD1110柴油机排气中NOx浓度和燃油消耗率进行了对比，试验证明该系统可以有效降低柴油机NOx排放并保证一定燃油消耗率，同时还有效解决了反映再循环排气量信号的采集问题。
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| 关 键 词： | 内燃机 柴油机 氮氧化物 空气质量流量信号 电控EGR系统 |
| 文章编号： | 1000-0925(2004)01-009-04 |
Research on EGR System Controlled by Air Feedback Signal for Diesel Engines |
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| HOU Yu-chun,XIAO Fu-ming,LU Chen,HUANG Zhen. Research on EGR System Controlled by Air Feedback Signal for Diesel Engines[J]. Chinese Internal Combustion Engine Engineering, 2004, 25(1): 9-12 |
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| Authors: | HOU Yu-chun XIAO Fu-ming LU Chen HUANG Zhen |
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| Affiliation: | HOU Yu-chun~1,XIAO Fu-ming~2,LU Chen~2,HUANG Zhen~1 |
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| Abstract: | An electronic controlled system with variable EGR ratio is built. The EGR ratio or recirculation exhaust gas quantity is replaced by the fresh air quality as the feedback signal. The control system can adjust the EGR value to change the recirculated exhaust quantity, accordingly to change the air quantity inlet into the cylinder until the control demand value of the corresponding working condition. Under four kinds of speed load condition, the NO_X concentration of the exhaust gas and fuel consumption rate of SD1110 diesel are compared when diesel with and without this EGR control system. It is found that the EGR control system can reduce the NO_X emission effectively and ensure certain fuel consumption rate. It also resolved the signal collection of the recirculated exhaust quantity . |
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| Keywords: | I.C.Engine Diesel Engine NO_X Air Mass Flow Signal Electronically Controlled EGR System |
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