Study on Cooling EGR Temperature Controller for Diesel Engine

China Mechanical Engineering ›› 2012, Vol. 23 ›› Issue (4): 407-411.

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Study on Cooling EGR Temperature Controller for Diesel Engine

Li Aijuan1;Li Shunming1;Guo Xinmin2;Liu Gang3;Liu Jianya4

1.Nanjing University of Aeronautics and Astronautics,Nanjing,210016

2.Shandong Agricultural University,Tai'an,Shandong,271018

3.Electricity Project Limited Company of Chinese Railway Tenth Group,Jinan,250000

4.Beijing Automobile Research Institute Co., Ltd.,Beijing,100021

Online:2012-02-25 Published:2012-03-02
Supported by:
Shandong Provincial Program of Ministry of Education of China（No. J07YF03）

柴油机冷EGR温度控制器的研究

李爱娟1;李舜酩1;郭新民2;刘刚3;刘建娅4

1.南京航空航天大学,南京,210016

2.山东农业大学,泰安,271018

3.中铁十局集团电务工程有限公司,济南,250000

4.北京汽车股份有限公司汽车工程研究院,北京,100021

基金资助:
山东省教育厅资助项目(J07YF03 )
Shandong Provincial Program of Ministry of Education of China（No. J07YF03）

Abstract

Abstract:

In order to reduce the NOx emission quantity of diesel engine, an cooling EGR temperature controller was designed. The controller can control the revolving speed of a direct current electric pump. Through controlling the revolving speed of the direct current electric pump, the cooling water's circulation was regulated. By the way of adjusting the circulation of cooling water, the EGR optimum cooling temperature range was ensured. The EGR cooling temperature was gained through temperature sensor, if the EGR cooling temperature was not within the optimum cooling temperature range, the temperature controller can adjust the average voltage of the electric water pump through changing PWM signals' pulse duty factor. The water pump's revolving speed was changed to regulate the circulation of cooling water. So the EGR cooling temperature was controlled automatically through the regulation of cooling water's circulation. By applying the temperature controller in CA498 diesel engine, the test results show that comparing to the EGR system of without cooling EGR device, the cooling EGR temperature controller can reduce the quantity of NOx emission effectively. 

Key words: diesel engine, cooling EGR(exhaust gas recirculation), NOx, controller

摘要：

为了降低柴油机NOx的排放量,设计了一种冷EGR温度控制器。该控制器可通过控制直流电动水泵的转速来调节冷却水的循环量,确保不同工况下的最佳EGR冷却温度。通过传感器信号获得EGR的冷却温度,如果EGR的冷却温度不在最佳冷却温度范围内,控制器通过PID控制改变脉宽调制信号PWM的占空比来调整水泵电机的平均电压以改变水泵的转速进而调节冷却水的循环量,从而实现冷EGR温度的自动控制。在CA498型柴油机上对该温度控制器进行了试验,结果表明,与未冷却的EGR系统相比,该冷EGR温度控制器可以有效地降低NOx的排放量。

关键词:

柴油机, 冷EGR, NOx, 控制器

CLC Number:

TK421.5



LI Ai-Juan-1, LI Shun-Ming-1, GUO Xin-Min-2, LIU Gang-3, LIU Jian-Ya-4. Study on Cooling EGR Temperature Controller for Diesel Engine[J]. China Mechanical Engineering, 2012, 23(4): 407-411.

李爱娟1, 李舜酩1, 郭新民2, 刘刚3, 刘建娅4.

柴油机冷EGR温度控制器的研究

[J]. 中国机械工程, 2012, 23(4): 407-411.

References

[1]Shi L, Cui Y, Deng K Y. Effects of Cooled Exter- nal Exhaust Gas Recirculation on Diesel Homogene- ous Charge Compression Ignition Engine[J]. Chi- nese Journal of Mechanical Engineering, 2007, 20 (1) :21-24.
[2]Hong W C. Exhaust Gas Recirculation Control in a Spark- ignition LPG Engine Using Neural Net- works[C]//The Sixth World Congress on Intelli- gent Control and Automation. Dalian, China, 2006 : 6332-6335.
[3]郭新民[1],魏新华[2],傅旭光[1],刘永进[1].大型收获机电液混合驱动智能冷却系统[J].农业机械学报,2006,37(4):60-63.
[4]边春元,李文涛编著.C51单片机典型模块设计与应用[M],2008:331.
[5]赵俊[1],陈建军[1].一种不确定对象的自适应智能PID控制系统[J].仪器仪表学报,2008,29(6):1193-1197.
[6]傅旭光[1],郭新民[1],刘永进[1],程世利[1],李东民[1],李淑廷[1].柴油机废气再循环冷却控制系统设计与试验[J].农业机械学报,2006,37(5):34-36.
[7]Ock Taeck L, Sato Y, Nozaki S. Development of DME Engines for Light- duty Trucks Using a Large EGR System[C]//Third International Forum on Strategic Technologies. Novosibirsk- Tomsk, Russia, 2008 : 663-667.
[8]李爱娟[1,2],郭新民[1],刘刚[3],牛化武[1],孙新年[1].柴油机EGR电控冷却系统试验研究[J].内燃机学报,2009,27(1):55-61.
[9]吴君华[1],黄震[1],乔信起[1],张武高[1].废气再循环对增压二甲醚发动机性能和排放影响的试验研究[J].内燃机学报,2008,26(2):147-152.
[10]OCHIENG W Y NORTH R J QUDDUS M NOLAND R B POLAK J W . 车辆性能与尾气监测集成系统的研制 [J]. 南京航空航天大学学报(英文版), 2005,(2) .
[11]SHI Lei CUI Yi DENG Kangyao[1].EFFECTS OF COOLED EXTERNAL EXHAUST GAS RECIRCULATION ON DIESEL HOMOGENEOUS CHARGE COMPRESSION IGNITION ENGINE[J].中国机械工程学报,2007,20(1):21-24.

Study on Cooling EGR Temperature Controller for Diesel Engine

柴油机冷EGR温度控制器的研究

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