Misfire detection based on engine speed using wavelet

Misfire detection is an important part of on-board diagnostics (OBD) system which is widely used at present. There are several methods to detect misfire, and the method of misfire detection based on engine speed is the most popular one, even though it cannot detect misfire very well when engine spee...

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Main Authors: Xiumin Yu, Le Liu, Shichun Yang, Xianglin Zhong, Derong Liu
Format: Conference Proceeding
Language:English
Subjects:
Acceleration
Continuous wavelet transforms
Discrete wavelet transforms
Electronically-controlled gasoline engine
Engines
fault diagnosis
Laboratories
misfire
Multiresolution analysis
Signal analysis
Signal detection
wavelet
Wavelet analysis
Wavelet transforms
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creator Xiumin Yu
Le Liu
Shichun Yang
Xianglin Zhong
Derong Liu
description Misfire detection is an important part of on-board diagnostics (OBD) system which is widely used at present. There are several methods to detect misfire, and the method of misfire detection based on engine speed is the most popular one, even though it cannot detect misfire very well when engine speed is high. An improvement to the method of misfire detection based on engine speed using wavelet algorithm is presented in this paper, and it is validated on a high speed four cycle engine. The test results show that the improved method can detect misfire accurately even when the engine speed is very high.
doi_str_mv 10.1109/IVS.2009.5164387
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source IEEE Xplore All Conference Series
subjects Acceleration
Continuous wavelet transforms
Discrete wavelet transforms
Electronically-controlled gasoline engine
Engines
fault diagnosis
Laboratories
misfire
Multiresolution analysis
Signal analysis
Signal detection
wavelet
Wavelet analysis
Wavelet transforms
title Misfire detection based on engine speed using wavelet
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