MODEL-BASED OPTIMIZATION OF PARAMETERS FOR A DIESEL ENGINE SCR SYSTEM |
L. LÜ, L. WANG |
Wuhan University of Technology |
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ABSTRACT |
A Selective Catalytic Reduction (SCR) system simulation model for diesel engines was established based on MATLAB/Simulink. The model includes four subsystems: signal acquisition, DEF (Diesel Exhaust Fluid) dosing control, catalytic chemistry reaction and NOX emissions reduction. The SCR control strategy was optimized based on ETC simulation results. Simulation and test results indicate that the model developed in this paper can predict ETC NOX emissions accurately. |
Key Words:
Diesel engine, SCR modeling, Simulation, NOX emissions |
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