Browse > Article
http://dx.doi.org/10.7467/KSAE.2013.21.5.151

A Study on Waveform Analysis of Oxygen Sensor, Injector and Secondary Waveform through Emission Characteristics by a Decrepit Vehicle  

Yoo, Jongsik (Department of Automobile & Machinery, Daewon University College)
Kim, Chulsoo (School of Mechanical and Automotive Engineering, Gangneung-Wonju National University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.21, no.5, 2013 , pp. 151-156 More about this Journal
Abstract
The experiment was done on cars travelling at the speeds of 20km/h, 60km/h and 100km/h using the performance testing mode for chassis dynamometer. In this experiment, the relativity between the secondary waveform coming from ignition coil and exhaust emissions were measured in case of cars with failures, in oxygen sensor, spark plugs. The following results obtained by analysis of the relativity between the secondary waveform and exhaust emissions. 1) When the oxygen sensor is failure, the average value of CO emission measured was 6.8 times higher than the standard CO emission value and the average value of HC emission measured was 2.3 times higher than the standard emission level. 2) When engine parts are in failure, more fuel enters the cylinder due to longer opening duration of injector, and it tended to make CO and HC emission values increase. 3) Combustion duration, the shape of flame propagation during spark line, and the size of the discharge-induced energy were the three main elements that directly cause variations in CO and HC emission values.
Keywords
Chassis dynamometer; Sensor waveform; Sensor trouble; Exhaust emission; Engine maintenance; Decrepit vehicles;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Jastec, Analyzer of Exhaust Gas, User Manual of CGA-6000HE, 2007.
2 Korea Education Council of Automotive Exhaust Emission, KECA, Technical Education Textbook of Vehicle Inspect Engineer, Goldenbell, Seoul, 2009.
3 Toyota Motor Sales USA, Fuel System Injection Duration Control, pp.1-11, 2004.
4 Bosch, Gasoline Engine Management, 3rd Edn., John Wiley & Sons, New York, 2006.
5 Fluke Korea, 190 Series Manual, 2008.
6 J. S. Yoo, A Study on the Waveform and Emission or Fuel Consumption Characteristics by Engine Sensors using Chassis Dynamometer, Ph. D. Dissertation, Myongji University, Seoul, Korea, 2010.
7 J. Patterson, Preparing for a Life Cycle $CO_2$ Measure, Ricardo Report, pp.7-17, 2011.
8 J. S. Yoo, C. S. Kim and K. O. Cha, "An Experimental Study on the Secondary Waveform Analysis according to Measure of Electronic Control Waveform," Transactions of KSAE, Vol.19, No.1, pp.95-100, 2011.   과학기술학회마을