吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (4): 1055-1062.doi: 10.13229/j.cnki.jdxbgxb20171213

Previous Articles     Next Articles

Design and analysis of nonlinear state observer for master-slave two cell Urea-SCR system of diesel engine

GONG Xun1,2,3, JIANG Bing-jing2, HU Yun-feng1,2, QU Ting1, CHEN Hong1,2   

  1. 1.State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China;
    2.Department of Control Science and Engineering,Jilin University, Changchun 130022, China;
    3.Department of Aerospace Engineering,Michigan University,Ann Arbo 48109,USA
  • Received:2017-12-11 Online:2018-07-01 Published:2018-07-01

RICH HTML

1   

PDF (PC)

350

Abstract: As one of the effective approaches to reduce NOx emission of diesel, Urea Selective Catalytic Reduction (Urea-SCR) can catalytically convert toxic NOx emission to nitrogen and water by accurately controlling the amount of ammonia injection. However, there still exists problem such as non-measurable states in Urea-SCR. To resolve this problem in the Urea-SCR feedback control system, first, the chemical reaction mechanism of DCR system is analyzed and a model containing both upstream and downstream (master-slave) elements is introduced. Second, a nonlinear reduced-order observer is designed to observe the non-measurable states by utilizing the concentration measurement downstream ammonia and NOx, meanwhile, the stability of the observer is analyzed and the value range of the observer parameter is calculated based on stability analysis. Finally, the effectiveness of the proposed approach is testified by simulation in enDYNA employing FTP75 cycle test procedure.

Key words: power machinery engineering, diesel engine, SCR control system, nonlinear observer, stability analysis

CLC Number: 

  • TK411
[1] 周庆辉. 现代汽车排放控制技术[M]. 北京: 北京大学出版社,2010:15-16.
[2] 杨成宏. 重型柴油机SCR催化器控制模型研究[D]. 长春: 吉林大学汽车工程学院, 2011.
Yang cheng-hong.Study on the control model of SCR for heavy-duty diesel engine[D].Changchun:College of Automotive Engineering,Jilin University,2011.
[3] 汪立志. 柴油机Urea-SCR系统控制模型的设计与仿真研究[D]. 武汉: 武汉理工大学能源与动力工程学院, 2011.
Wang Li-zhi.Design and simulation of the control model of urea-scr system in diesel engine[D]. Wuhan: College of Energy and Power Engineering,Wuhan University of Technology,20011.
[4] Upadhyay D, Van Nieuwstadt M.Model based analysis and control design of a urea-SCR deNOx aftertreatment system[J]. Journal of Dynamic Systems, Measurement, and Control, 2006, 128(3): 737-741.
[5] Herman A, Wu M C, Cabush D, et al.Model based control of SCR dosing and OBD strategies with feedback from NH3 sensors[J]. SAE International Journal of Fuels and Lubricants, 2009, 2(1): 375-385.
[6] Hsieh M F, Wang J.A two-cell backstepping- based control strategy for diesel engine selective catalytic reduction systems[J]. IEEE Transactions on Control Systems Technology, 2011, 19(6): 1504-1515.
[7] Zhao J, Hu Y, Gong X, et al.Modelling and control of urea-SCR systems through the triple-step non-linear method in consideration of time-varying parameters and reference dynamics[J]. Transactions of the Institute of Measurement and Control, 2018,40(1):287-302.
[8] Zhang H, Wang J, Wang Y Y.Robust filtering for ammonia coverage estimation in diesel engine selective catalytic reduction systems[J]. Journal of Dynamic Systems, Measurement, and Control, 2013, 135(6): 064504.
[9] Zhang H, Wang J, Wang Y Y.Nonlinear observer design of diesel engine selective catalytic reduction systems with NOx sensor measurements[J]. IEEE/ASME Transactions on Mechatronics, 2015, 20(4): 1585-1594.
[10] Hsieh M F, Wang J.Design and experimental validation of an extended Kalman filter-based NOx concentration estimator in selective catalytic reduction system applications[J]. Control Engineering Practice, 2011, 19(4): 346-353.
[11] Hsieh M F, Wang J.Sliding-mode observer for urea-selective catalytic reduction (SCR) mid-catalyst ammonia concentration estimation[J]. International Journal of Automotive Technology, 2011, 12(3): 321-329.
[12] Zhang H, Wang J, Wang Y Y.Sensor reduction in diesel engine two-cell selective catalytic reduction (SCR) systems for automotive applications[J]. IEEE/ASME Transactions on Mechatronics, 2015, 20(5): 2222-2233.
[1] DONG Wei,SONG Bai-da,QIU Li-tao,SUN Hao-tian,SUN Ping,PU Chao-jie. Effect of fuel ratio of two injections on combustion and emissions in warm-up process of gasoline direct injection engine [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1755-1761.
[2] LIN Xue-dong, JIANG Tao, XU Tao, LI De-gang, GUO Liang. Control strategy of high pressure pump in starting condition of high pressure common rail diesel engine [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1436-1443.
[3] YANG Shuai, FENG Zhi-wei, ZHAO Zhi-guo, ZHOU Yi. 1-Dimensional simulation analysis about the influence of different Miller cycle strategies on diesel engine operating process [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1444-1454.
[4] XI Lei, XU Liang, GAO Jian-min, ZHAO Zhen, WANG Ming-sen. Flow and heat transfer characteristics of steam in thick-wall rectangular ribbed channel [J]. 吉林大学学报(工学版), 2018, 48(3): 752-759.
[5] TIAN Jing, LIU Zhong-chang, LIU Jin-shan, DONG Chun-xiao, ZHONG Ming, DU Wen-chang. Performance optimization of diesel engine based on response surface methodology of multi-boundary combustion conditions [J]. 吉林大学学报(工学版), 2018, 48(1): 159-165.
[6] GUO Liang, YANG Wen-zhao, WANG Yun-kai, SUN Wan-chen, CHENG Peng, LI Guo-liang. Effect of exhaust gas recirculation on internal combustion engine fueled with butanol/diesel blend [J]. 吉林大学学报(工学版), 2017, 47(6): 1767-1774.
[7] LIU Zhong-chang, TENG Peng-kun, TIAN Jing, XU Yun, QI Sheng-lin, YU Kai-bo. Regulation characteristics of bypass valve of two stage turbocharged diesel engine [J]. 吉林大学学报(工学版), 2017, 47(3): 796-803.
[8] JIANG Tao, LIN Xue-dong, LI De-gang. Influence of ultra-high pressure injection on mixed gas formation,combustion and emission characteristics of DI diesel engine [J]. 吉林大学学报(工学版), 2016, 46(5): 1484-1493.
[9] HAN Xiao-mei, LIN Xue-dong, LI De-gang, LI Chuang. Injection quantity control strategy for starting to idling transition of light duty diesel engine [J]. 吉林大学学报(工学版), 2016, 46(4): 1103-1108.
[10] SUN Wan-chen, LIU Gao, GUO Liang, DU Jia-kun, XIAO Sen-lin, LI Guo-liang. Efficiency of DPF on ultrafine particles in a common-rail diesel engine [J]. 吉林大学学报(工学版), 2016, 46(1): 133-139.
[11] TIAN Jing, LIU Zhong-chang, ZHANG Wen-jie, ZHANG Long-ping. Effect of load conditions on the performance of diesel engine under transient operation condition [J]. 吉林大学学报(工学版), 2015, 45(6): 1798-1803.
[12] HUANG Ya, LIN Xue-dong, LI De-gang, GU Jing-jing, HOU Yu-jing. Simulation study of lean combustion characteristic of direct injection CNG engine [J]. 吉林大学学报(工学版), 2015, 45(3): 797-805.
[13] YANG Qing-fang, MA Ming-hui, YANG Ju-fen, BING Qi-chun, LIANG Shi-dong. Analysis of the traffic flow operating stability on highway [J]. 吉林大学学报(工学版), 2014, 44(6): 1596-1603.
[14] LIU Zhong-chang, SUN Shi-jie, TIAN Jing, XU Rui-chen, WANG Bo-zhou. Influences of fuel injection parameters on emissions and combustion of diesel engine under transient conditions [J]. 吉林大学学报(工学版), 2014, 44(6): 1639-1646.
[15] XIE Fang-xi, YU Ze-yang, LIU Si-nan, CAO Xiao-feng, JIA Gui-qi, HONG Wei. Effects of injection pressure on fuel spray and air-fuel mixing process of diesel engine [J]. 吉林大学学报(工学版), 2013, 43(06): 1504-1509.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] LIU Song-shan, WANG Qing-nian, WANG Wei-hua, LIN Xin. Influence of inertial mass on damping and amplitude-frequency characteristic of regenerative suspension[J]. 吉林大学学报(工学版), 2013, 43(03): 557 -563 .
[2] CHU Liang, WANG Yan-bo, QI Fu-wei, ZHANG Yong-sheng. Control method of inlet valves for brake pressure fine regulation[J]. 吉林大学学报(工学版), 2013, 43(03): 564 -570 .
[3] LI Jing, WANG Zi-han, YU Chun-xian, HAN Zuo-yue, SUN Bo-hua. Design of control system to follow vehicle state with HIL test beach[J]. 吉林大学学报(工学版), 2013, 43(03): 577 -583 .
[4] HU Xing-jun, LI Teng-fei, WANG Jing-yu, YANG Bo, GUO Peng, LIAO Lei. Numerical simulation of the influence of rear-end panels on the wake flow field of a heavy-duty truck[J]. 吉林大学学报(工学版), 2013, 43(03): 595 -601 .
[5] WANG Tong-jian, CHEN Jin-shi, ZHAO Feng, ZHAO Qing-bo, LIU Xin-hui, YUAN Hua-shan. Mechanical-hydraulic co-simulation and experiment of full hydraulic steering systems[J]. 吉林大学学报(工学版), 2013, 43(03): 607 -612 .
[6] ZHANG Chun-qin, JIANG Gui-yan, WU Zheng-yan. Factors influencing motor vehicle travel departure time choice behavior[J]. 吉林大学学报(工学版), 2013, 43(03): 626 -632 .
[7] MA Wan-jing, XIE Han-zhou. Integrated control of main-signal and pre-signal on approach of intersection with double stop line[J]. 吉林大学学报(工学版), 2013, 43(03): 633 -639 .
[8] YU De-xin, TONG Qian, YANG Zhao-sheng, GAO Peng. Forecast model of emergency traffic evacuation time under major disaster[J]. 吉林大学学报(工学版), 2013, 43(03): 654 -658 .
[9] XIAO Yun, LEI Jun-qing, ZHANG Kun, LI Zhong-san. Fatigue stiffness degradation of prestressed concrete beam under multilevel amplitude cycle loading[J]. 吉林大学学报(工学版), 2013, 43(03): 665 -670 .
[10] XIAO Rui, DENG Zong-cai, LAN Ming-zhang, SHEN Chen-liang. Experiment research on proportions of reactive powder concrete without silica fume[J]. 吉林大学学报(工学版), 2013, 43(03): 671 -676 .
Copyright © Journal of Jilin University(Engineering and Technology Edition), All Rights Reserved.
Tel: +86-431-85095297　Fax: +86-431-85094074　E-mail: xbgxb@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd