|Table of Contents|

Fault simulation test of oxygen sensor for natural gas engine(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2013年03期
Page:
62-70
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
Fault simulation test of oxygen sensor for natural gas engine
Author(s):
DONG Qiang-zhu12 YUAN Hua-zhi2 JIAN Xiao-ping2 LI Yang-yang2 JIAO Sheng-jie1
1. National Engineering Laboratory of Highway Maitenance Equipment, Chang'an University, Xi'an 710064, Shaanxi, China; 2. School of Automobile, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
automobile engineering natural gas engine oxygen sensor fault simulation signal loss signal anomaly
PACS:
U467.2
DOI:
-
Abstract:
On the self-built engine test bench, the bench test and emission analysis method were taken as foundations, the NI acquisition card, front-end signal processing circuit, the control circuit of signal loss and the control circuit of signal anomaly were taken as hardwares, the fault simulation system of oxygen sensor for natural gas engine was designed by LabVIEW software, and the influences of oxygen sensor fault on the power performance, economy performance and emission indexes of natural gas engine were analyzed. Test result shows that when rotation speed is 2 500 r·min-1, throttle opening degree is 25% and analog signal voltage is below 0.5 V, the excess air coefficient reduces, the concentration of mixed gas rises, torque changes slightly compared with normal value, CO emission rises, HC emission rises slightly, and NOx emission decreases. When signal voltage is high above 0.5 V, the excess air coefficient rises, the concentration of mixed gas decreases, torque drops significantly, CO emission decreases and is less than normal value, HC emission increases, and NOx is 0 basically. 2 tabs, 26 figs, 21 refs.

References:

[1] 袁华智,蹇小平,袁华剑.我国新能源汽车产业竞争力研究[J].科技管理研究,2012,32(17):36-41,48. YUAN Hua-zhi, JIAN Xiao-ping, YUAN Hua-jian. Research on competitiveness of new energy vehicle industry in China[J]. Science and Technology Management Research, 2012, 32(17): 36-41, 48.(in Chinese)
[2] 蹇小平,张春化,王向东,等.电控汽油发动机故障模拟试验[J].长安大学学报:自然科学版,2008,28(1):97-102. JIAN Xiao-ping, ZHANG Chun-hua, WANG Xiang-dong, et al. Simulation test on failures of an electronically controlled gasoline engine[J].Journal of Chang'an University: Natural Science Edition, 2008, 28(1): 97-102.(in Chinese)
[3] 袁华智,蹇小平,张春化,等.传感器故障对天然气发动机性能和排放的影响[J].长安大学学报:自然科学版,2010,30(2):96-100. YUAN Hua-zhi, JIAN Xiao-ping, ZHANG Chun-hua, et al. Influence of failures of natural gas engine sensors on engine's performance and emission[J]. Journal of Chang'an University: Natural Science Edition, 2010, 30(2): 96-100.(in Chinese)
[4] 解 梅,黄银娣,张振军.电控发动机故障模拟试验台的设计与试验研究[J].汽车电器,2005(7):52-54. XIE Mei, HUANG Yin-di, ZHANG Zhen-jun. Electronic-controlled engine malfunction simulation studying[J]. Auto Electric Parts, 2005(7): 52-54.(in Chinese)
[5] ATKINSON C M, LONG T W, HANZEVACK E L. Virtual sensing: a neural network-based intelligent performance and emissions prediction system for on-board diagnostics and engine control[C]∥SAE. Electronic Engine Controls 1998: Diagnostics and Controls. Detroit: SAE, 1998: 1-12.
[6] BEROUN S, MARTINS J.The development of gas(CNG, LPG and H2)engines for buses and trucks and their emission and cycle variability characteristics[C]∥SAE. SAE 2001 World Congress on Transportation Systems. Detroit: SAE, 2001: 1-9.
[7] UBONG E U, DIMITROV B. A statistical approach in studying the air/fuel ratio variation based on oxygen sensors' signals[J]. Transactions of CSICE, 2008, 26(1): 11-23.
[8] JONES V K, AULT B A, FRANKLIN G F, et al. Identification and air-fuel ratio control of a spark-ignition engine[J]. IEEE Transactions on Control Systems Technology, 1995, 3(1): 14-21.
[9] GRIZZLE J W, DOBBINS K L, COOK J A. Individual cylinder air-fuel ratio control with a single EGO sensor[J]. IEEE Transactions on Vehicular Technology, 1991, 40(1): 280-286.
[10] GRIZZLE J W, COOK J A, MILAM W P. Improved cylinder air charge estimation for transient air fuel ratio control[C]∥IEEE. Proceedings of the American Control Conference 1994. Ann Arbor: IEEE, 1994: 1568-1573.
[11] KUBOTA H, FUJITA H, OKAWA T, et al. Development of oxygen sensor for compressed natural gas engine[J]. JSAE Review, 2000, 21(2): 244-248.
[12] 薛玉荣.氧传感器对电喷发动机性能影响试验分析[J].机械制造与自动化,2010(2):92-94. XUE Yu-rong. Test and analysis of influence of oxygen sensors on EFI engine performance[J]. Machine Building and Automation, 2010(2): 92-94.(in Chinese)
[13] 孟 鑫,王宇成,王 忠.基于OBD系统的氧传感器失效模拟及试验[J].仪表技术与传感器,2010(5):10-12.MENG Xin, WANG Yu-cheng, WANG Zhong. Simulation and experimentation research on oxygen sensor malfunction for OBD[J]. Instrument Technique and Sensor, 2010(5): 10-12.(in Chinese)
[14] 黄榕清,胡 宏,李刚营.电控发动机故障模拟试验台的研究及试验分析[J].机电工程技术,2005,34(12):39-40. HUANG Rong-qing, HU Hong, LI Gang-ying. Research of the electronic controlled engine trouble simulation experiment table and experimental result analysis[J]. Mechanical and Electrical Engineering Technology, 2005, 34(12): 39-40.(in Chinese)
[15] HUANG Zuo-hua, SHIGA S, UEDA T, et al. Effect of fuel injection timing relative to ignition timing on the natural-gas direct-injection combustion[J]. Journal of Engineering for Gas Turbines and Power, 2003, 125(3): 783-790.
[16] ZENG Ke, HUANG Zuo-hua, LIU Bing, et al. Combustion characteristics of a direct-injection natural gas engine under various fuel injection timings[J]. Applied Thermal Engineering, 2006, 26(8/9): 806-813.
[17] 蹇小平,王俊红,仇世侃,等.电控汽油机故障模拟试验系统设计[J].汽车技术,2007(9):44-47. JIAN Xiao-ping, WANG Jun-hong, QIU Shi-kan, et al. Design of fault simulation experiment system for electronic control gasoline engine[J]. Automobile Technology, 2007(9): 44-47.(in Chinese)
[18] 袁华智,张雪峰,刘 朋.基于逻辑门限控制的ABS关键技术研究[J].河北工业大学学报,2009,38(3):49-51. YUAN Hua-zhi, ZHANG Xue-feng, LIU Peng. Study of the ABS technology based on the logic threshold control[J]. Journal of Hebei University of Technology, 2009, 38(3): 49-51.(in Chinese)
[19] 袁华智.电控汽油/CNG两用燃料发动机故障模拟试验及诊断研究[D].西安:长安大学,2010. YUAN Hua-zhi. Simulation and experiment research on the failure diagnosis for the electronically controlled gasoline/CNG flexible-fuel engine[D]. Xi'an: Chang'an University, 2010.(in Chinese)
[20] 韩有旭.汽油/CNG两用燃料发动机故障模拟试验台开发及试验研究[D].西安:长安大学,2010. Han You-xu.The design of fault simulation test-bed and experimental study on a gasoline/CNG flexible-fuel engine[D]. Xi'an: Chang'an university, 2010.(in Chinese)
[21] 李阳阳.电控汽油/CNG两用燃料发动机传感器故障模拟系统研究[D].西安:长安大学,2011. LI Yang-yang. Study on the sensors fault simulation system for electronically controlled gasoline/CNG flexible-fuel engine[D]. Xi'an: Chang'an university, 2011.(in Chinese)

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Last Update: 2013-07-30