Turbine Efficiency Estimation for Fault Detection Application

2010-01-0568

04/12/2010

Event
SAE 2010 World Congress & Exhibition
Authors Abstract
Content
In nowadays diesel engine, the turbocharger system plays a very important role in the engine functioning and any loss of the turbine efficiency can lead to driveability problems and the increment of emissions. In this paper, a VGT turbocharger fault detection system is proposed. The method is based on a physical model of the turbocharger and includes an estimation of the turbine efficiency by a nonlinear adaptive observer. A sensitivity analysis is provided in order to evaluate the impact of different sensors fault, (drift and bias), used to feed the observer, on the estimation of turbine efficiency error. By the means of this analysis a robust variable threshold is provided in order to reduce false detection alarm. Simulation results, based on co-simulation professional platform (AMEsim© and Simulink©), are provided to validate the strategy.
Meta TagsDetails
DOI
https://doi.org/10.4271/2010-01-0568
Pages
10
Citation
Ceccarelli, R., Moulin, P., and Canudas de Wit, C., "Turbine Efficiency Estimation for Fault Detection Application," SAE Technical Paper 2010-01-0568, 2010, https://doi.org/10.4271/2010-01-0568.
Additional Details
Publisher
Published
Apr 12, 2010
Product Code
2010-01-0568
Content Type
Technical Paper
Language
English