Fault Diagnosis of Intake System of Diesel Engine Based on LOLIMOT

Ying Min Wang, Tao Cui*, Fu Jun Zhang, Tian Pu Dong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Leakage and blocking of intake system of diesel engine may lead to the deterioration of the emissions and fuel economy. An accurate model of intake system is difficult to be established since it is a strong nonlinear system. Thus, a fault diagnosis method based on local linear model tree (LOLIMOT) is proposed for on-line fault diagnosis. The amplitude and phase of intake pressure fluctuation signal and volumetric efficiency are selected as the fault characteristic parameters. LOLIMOT is used to establish the reference models of the parameters. The models are regarded as a function of engine speed and intake density. Three residual signals are generated by using parity equation for calculating their threshold values. The mapping relationship between the residual signal and the fault type is analyzed. Experimental results show that the proposed models give good prediction of fault characteristic parameters, the proposed method can be to diagnose the leakage of engine intake system and the blocking of intercooler.

Original languageEnglish
Pages (from-to)1457-1468
Number of pages12
JournalBinggong Xuebao/Acta Armamentarii
Volume38
Issue number8
DOIs
Publication statusPublished - 1 Aug 2017

Keywords

  • Degradation fault
  • Fault diagnosis
  • Intake system
  • Local linear model tree
  • Power machinery engineering

Fingerprint

Dive into the research topics of 'Fault Diagnosis of Intake System of Diesel Engine Based on LOLIMOT'. Together they form a unique fingerprint.

Cite this

Wang, Y. M., Cui, T., Zhang, F. J., & Dong, T. P. (2017). Fault Diagnosis of Intake System of Diesel Engine Based on LOLIMOT. Binggong Xuebao/Acta Armamentarii, 38(8), 1457-1468. https://doi.org/10.3969/j.issn.1000-1093.2017.08.001