University of Hertfordshire

Actuator Fault Diagnosis with Application to a Diesel Engine Testbed

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Actuator Fault Diagnosis with Application to a Diesel Engine Testbed. / Peng, Zhijun.

In: Mathematical Problems in Engineering, 2015.

Research output: Contribution to journalArticle

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@article{7b657696eddd4958b90307547997dbcf,
title = "Actuator Fault Diagnosis with Application to a Diesel Engine Testbed",
abstract = "This work addresses the issues of actuator fault detection and isolation for diesel engines. We are particularly interested in faults affecting the exhaust gas recirculation (EGR) and the variable geometry turbocharger (VGT) actuator valves. A bank of observer-based residuals is designed using a nonlinear mean value model of diesel engines. Each residual on the proposed scheme is based on a nonlinear unknown input observer and designed to be insensitive to only one fault. By using this scheme, each actuator fault can be easily isolated since only one residual goes to zero while the others do not. A decision algorithm based on multi-CUSUM is used. The performances of the proposed approach are shown through a real application to a Caterpillar 3126b engine.",
keywords = "Diesel engine, control, Actuator Fault Diagnosis",
author = "Zhijun Peng",
year = "2015",
doi = "10.1155/2015/189860",
language = "English",
journal = "Mathematical Problems in Engineering",
issn = "1024-123X",
publisher = "Hindawi Publishing Corporation",

}

RIS

TY - JOUR

T1 - Actuator Fault Diagnosis with Application to a Diesel Engine Testbed

AU - Peng, Zhijun

PY - 2015

Y1 - 2015

N2 - This work addresses the issues of actuator fault detection and isolation for diesel engines. We are particularly interested in faults affecting the exhaust gas recirculation (EGR) and the variable geometry turbocharger (VGT) actuator valves. A bank of observer-based residuals is designed using a nonlinear mean value model of diesel engines. Each residual on the proposed scheme is based on a nonlinear unknown input observer and designed to be insensitive to only one fault. By using this scheme, each actuator fault can be easily isolated since only one residual goes to zero while the others do not. A decision algorithm based on multi-CUSUM is used. The performances of the proposed approach are shown through a real application to a Caterpillar 3126b engine.

AB - This work addresses the issues of actuator fault detection and isolation for diesel engines. We are particularly interested in faults affecting the exhaust gas recirculation (EGR) and the variable geometry turbocharger (VGT) actuator valves. A bank of observer-based residuals is designed using a nonlinear mean value model of diesel engines. Each residual on the proposed scheme is based on a nonlinear unknown input observer and designed to be insensitive to only one fault. By using this scheme, each actuator fault can be easily isolated since only one residual goes to zero while the others do not. A decision algorithm based on multi-CUSUM is used. The performances of the proposed approach are shown through a real application to a Caterpillar 3126b engine.

KW - Diesel engine, control, Actuator Fault Diagnosis

U2 - 10.1155/2015/189860

DO - 10.1155/2015/189860

M3 - Article

JO - Mathematical Problems in Engineering

JF - Mathematical Problems in Engineering

SN - 1024-123X

ER -