Coordinated Control of EGR and VNT in Turbocharged Diesel Engine Based on Intake Air Mass Observer

2002-01-1292

03/04/2002

Event
SAE 2002 World Congress & Exhibition
Authors Abstract
Content
Coordinated EGR-VNT control based on the intake air mass observer is presented in this paper to deal with the transient AFR control of turbocharged diesel engine. The air mass model embedded in the observer is a Takagi-Sugeno fuzzy neural network trained with transient simulation results. It can predict the charged fresh air mass entering the cylinder. In a high load region, when EGR is not effective, the coordinated EGR-VNT control will also bring benefits to the transient air-fuel-ratio control. The simulation results of TDI engine model verify that the transient control strategy will allow a better control of the intake air mass, and thus improve air-fuel-ratio control and reduce NOx emission in transients.
Meta TagsDetails
DOI
https://doi.org/10.4271/2002-01-1292
Pages
12
Citation
Bai, L., and Yang, M., "Coordinated Control of EGR and VNT in Turbocharged Diesel Engine Based on Intake Air Mass Observer," SAE Technical Paper 2002-01-1292, 2002, https://doi.org/10.4271/2002-01-1292.
Additional Details
Publisher
Published
Mar 4, 2002
Product Code
2002-01-1292
Content Type
Technical Paper
Language
English