| 柴油机EGR电控系统设计与试验分析 |
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| 引用本文： | 杨帅,姚喜贵,刘牮,张振东,周毅,吴金花.柴油机EGR电控系统设计与试验分析[J].哈尔滨工业大学学报,2009,41(1):263-265. |
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| 作者姓名： | 杨帅 姚喜贵 刘牮 张振东 周毅 吴金花 |
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| 作者单位： | 杨帅,周毅,YANG Shuai,ZHOU Yi(同济大学汽车学院,上海,201804);姚喜贵,YAO Xi-gui(温州大学工业工程学院,浙江温州,325025);刘牮,张振东,吴金花,LIU Jian,ZHANG Zhen-doug,WU Jin-hua(上海理工大学,上海,200093)
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| 基金项目： | 同济大学青年优秀人才培养行动计划 |
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| 摘 要： | 针对增压直喷柴油机开展EGR技术的电子控制研究与应用,以降低NOx排放.依据柴油机EGR控制系统的工作特点和功能要求,以80C196单片机核心,进行了控制系统的电路设计和控制软件编写.根据发动机负荷特性试验对比分析,证实柴油机在应用EGR控制系统后,NOx排放降低19.9%,HC和CO排放略有增加,柴油机动力性和经济性与原机相当,通过对EGR回路的冷却,可以抑制PM排放增加,同时还验证了EGR电控系统设计合理,能够对EGR系统按照柴油机不同工况的最佳EGR率进行实时控制.
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| 关 键 词： | 增压直喷柴油机 废气再循环 控制系统 氮氧化物 |
Design and experimental analysis for EGR electronic control system of diesel engine |
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| YANG Shuai,YAO Xi-gui,LIU Jian,ZHANG Zhen-doug,ZHOU Yi,WU Jin-hua.Design and experimental analysis for EGR electronic control system of diesel engine[J].Journal of Harbin Institute of Technology,2009,41(1):263-265. |
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| Authors: | YANG Shuai YAO Xi-gui LIU Jian ZHANG Zhen-doug ZHOU Yi WU Jin-hua |
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| Affiliation: | 1.College of Automobile,Tongji University,Shanghai 201804,China;2.College of Industrial Engineering,University of Wenzhou,Wenzhou 325025,China;3.University of Shanghai for Science and Technology, Shanghai 200093,China) |
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| Abstract: | The electronic control technology about EGR was researched and used in a TDI diesel engine in order to reduce NOx emission.According to operation characteristics and functions of EGR control system in diesel engine,80C196KC single chip was selected as EGR system control center,then the circuit of EGR system was designed and the control program was compiled.Based on the contrast analysis of diesel engine load tests,it is proved that NOx emission is reduced by 19.9%,CO and HC emission is increased a little,power and fuel economy characteristics of diesel engine with EGR system are similar to the original,and cool EGR can restrain the increase of PM as EGR technology is used in diesel engine.The design method about circuit and program for EGR system is applicable in practice and can make EGR system operate consecutively and credibly on the basis of optimum EGR rates when diesel engine operates under different operation conditions. |
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| Keywords: | turbocharged direct-injected(TDI) diesel engine exhausted gas recirculation control system nitrogen oxides |
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