Cylinder Individual AFR Estimation based on a Physical Model and using Kalman Filters 2004-01-0422
On diesel engines, a discrepancy between the air fuel ratio (AFR) of the cylinders can lead to a decrease of full load performances, an increase of pollutant and noise emissions and has an effect on the aftertreatment efficiency. A cylinder individual AFR estimator has been developed using Kalman filter techniques. This estimator is based on a physical model of the exhaust, and intended to be implemented in an engine management system. The time delay of the exhaust system, including the sensor, can be identified online. When applied on testbed acquisitions, the estimator gives good results over the whole operating range of the engine.
Citation: Moulin, P., Corde, G., Castagné, M., and Rousseau, G., "Cylinder Individual AFR Estimation based on a Physical Model and using Kalman Filters," SAE Technical Paper 2004-01-0422, 2004, https://doi.org/10.4271/2004-01-0422. Download Citation
Author(s):
Philippe Moulin, Gilles Corde, Michel Castagné, Grégory Rousseau
Affiliated:
Institut Français du Pétrole (IFP)
Pages: 11
Event:
SAE 2004 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Air / fuel ratio
Diesel / compression ignition engines
Exhaust systems
Scale models
Engine cylinders
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