Diesel injector dynamic modelling and estimation of injection parameters from impact response Part 2

Prediction of injection parameters from monitored vibration

F. Gu, A. D. Ball, K. K. Rao

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Part 2 of this paper presents the experimental and analytical procedures used in the estimation of injection parameters from monitored vibration. The mechanical and flow-induced sources of vibration in a fuel injector are detailed and the features of the resulting vibration response of the injector body are discussed. Experimental engine test and data acquisition procedures are described, and the use of an out-of-the-engine test facility to confirm injection dependent vibration response is outlined. Wigner-Ville distribution (WVD) analysis of non-stationary vibration signals monitored on the injector body is used to locate regions of vibration in the time-frequency plane which are responsive to injection parameters. From the data in these regions, estimates of injection timing and fuel pressure are obtained. Accurate estimation of injection parameters from externally monitored vibration is shown to pave the way for the detection and diagnosis of injection system faults. Moreover, it is demonstrated that the technique provides an alternative method for the set-up, checking and adjustment of fuel injection timing.

Original languageEnglish
Pages (from-to)303-311
Number of pages9
JournalProceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
Volume210
Issue number4
DOIs
Publication statusPublished - 1 Oct 1996
Externally publishedYes

Fingerprint

Wigner-Ville distribution
Engines
Fuel injection
Test facilities
Data acquisition

Cite this

@article{0f934f205022406980cbaa03bd149d49,
title = "Diesel injector dynamic modelling and estimation of injection parameters from impact response Part 2: Prediction of injection parameters from monitored vibration",
abstract = "Part 2 of this paper presents the experimental and analytical procedures used in the estimation of injection parameters from monitored vibration. The mechanical and flow-induced sources of vibration in a fuel injector are detailed and the features of the resulting vibration response of the injector body are discussed. Experimental engine test and data acquisition procedures are described, and the use of an out-of-the-engine test facility to confirm injection dependent vibration response is outlined. Wigner-Ville distribution (WVD) analysis of non-stationary vibration signals monitored on the injector body is used to locate regions of vibration in the time-frequency plane which are responsive to injection parameters. From the data in these regions, estimates of injection timing and fuel pressure are obtained. Accurate estimation of injection parameters from externally monitored vibration is shown to pave the way for the detection and diagnosis of injection system faults. Moreover, it is demonstrated that the technique provides an alternative method for the set-up, checking and adjustment of fuel injection timing.",
keywords = "Condition monitoring, Fuel injector, Impact vibration, Injection pressure, Injection timing, Injector vibration, Time-frequency analysis",
author = "F. Gu and Ball, {A. D.} and Rao, {K. K.}",
year = "1996",
month = "10",
day = "1",
doi = "10.1243/PIME_PROC_1996_210_277_02",
language = "English",
volume = "210",
pages = "303--311",
journal = "Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering",
issn = "0954-4070",
publisher = "SAGE Publications Inc.",
number = "4",

}

TY - JOUR

T1 - Diesel injector dynamic modelling and estimation of injection parameters from impact response Part 2

T2 - Prediction of injection parameters from monitored vibration

AU - Gu, F.

AU - Ball, A. D.

AU - Rao, K. K.

PY - 1996/10/1

Y1 - 1996/10/1

N2 - Part 2 of this paper presents the experimental and analytical procedures used in the estimation of injection parameters from monitored vibration. The mechanical and flow-induced sources of vibration in a fuel injector are detailed and the features of the resulting vibration response of the injector body are discussed. Experimental engine test and data acquisition procedures are described, and the use of an out-of-the-engine test facility to confirm injection dependent vibration response is outlined. Wigner-Ville distribution (WVD) analysis of non-stationary vibration signals monitored on the injector body is used to locate regions of vibration in the time-frequency plane which are responsive to injection parameters. From the data in these regions, estimates of injection timing and fuel pressure are obtained. Accurate estimation of injection parameters from externally monitored vibration is shown to pave the way for the detection and diagnosis of injection system faults. Moreover, it is demonstrated that the technique provides an alternative method for the set-up, checking and adjustment of fuel injection timing.

AB - Part 2 of this paper presents the experimental and analytical procedures used in the estimation of injection parameters from monitored vibration. The mechanical and flow-induced sources of vibration in a fuel injector are detailed and the features of the resulting vibration response of the injector body are discussed. Experimental engine test and data acquisition procedures are described, and the use of an out-of-the-engine test facility to confirm injection dependent vibration response is outlined. Wigner-Ville distribution (WVD) analysis of non-stationary vibration signals monitored on the injector body is used to locate regions of vibration in the time-frequency plane which are responsive to injection parameters. From the data in these regions, estimates of injection timing and fuel pressure are obtained. Accurate estimation of injection parameters from externally monitored vibration is shown to pave the way for the detection and diagnosis of injection system faults. Moreover, it is demonstrated that the technique provides an alternative method for the set-up, checking and adjustment of fuel injection timing.

KW - Condition monitoring

KW - Fuel injector

KW - Impact vibration

KW - Injection pressure

KW - Injection timing

KW - Injector vibration

KW - Time-frequency analysis

UR - http://www.scopus.com/inward/record.url?scp=0030401703&partnerID=8YFLogxK

U2 - 10.1243/PIME_PROC_1996_210_277_02

DO - 10.1243/PIME_PROC_1996_210_277_02

M3 - Article

VL - 210

SP - 303

EP - 311

JO - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering

JF - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering

SN - 0954-4070

IS - 4

ER -