Title :
Walsh moving method for misfire detection in IC engines
Author :
Lee, Tae-Pyo ; Kim, Jongboo ; Yim, Kook-Hyun
Author_Institution :
Hyundai Motors Central Res. Center, South Korea
Abstract :
Considerable interest has been placed on the detection of engine misfire. One of the most usual causes of this imperfect combustion is the misfire in IC (internal combustion) engines. The OBD-II (On board diagnosis II) regulations require that misfire should be monitored by the engine diagnostic system, and that the goal of OBD-II is to alert the driver to the presence of a malfunction of the emission control system. This paper presents a precise method and system with Walsh moving window method for IC engine multiple misfires. The aim of this study is the practical detection of the multiple misfire of IC engine by Walsh moving window algorithm
Keywords :
Fourier transforms; Walsh functions; automotive electronics; fault diagnosis; internal combustion engines; signal processing; IC engines; OBD-II regulations; On board diagnosis II regulations; Walsh moving method; Walsh moving window method; Walsh-Fourier transform; emission control system malfunction; engine misfire detection; internal combustion engines; Air pollution; Automotive engineering; Combustion; Engine cylinders; Frequency; Gas detectors; Integrated circuit noise; Signal analysis; Vehicle driving; Working environment noise;
Conference_Titel :
TENCON 99. Proceedings of the IEEE Region 10 Conference
Conference_Location :
Cheju Island
Print_ISBN :
0-7803-5739-6
DOI :
10.1109/TENCON.1999.818365
