Real-time combustion parameter estimation algorithm for light-duty diesel engines using in-cylinder pressure measurement

2013 ◽  
Vol 60 (1-2) ◽  
pp. 33-43 ◽  
Author(s):  
Jaesung Chung ◽  
Seungsuk Oh ◽  
Kyunghan Min ◽  
Myoungho Sunwoo
Keyword(s):  
Parameter Estimation ◽  
Real Time ◽  
Diesel Engines ◽  
Pressure Measurement ◽  
Estimation Algorithm ◽  
Cylinder Pressure ◽  
Light Duty ◽  
Parameter Estimation Algorithm

In-cylinder pressure sensor–based NOx model for real-time application in diesel engines

2017 ◽  
Vol 19 (3) ◽  
pp. 293-307 ◽  
Author(s):  
Hoon Cho ◽  
Brien Fulton ◽  
Devesh Upadhyay ◽  
Thomas Brewbaker ◽  
Michiel van Nieuwstadt
Keyword(s):  
Real Time ◽  
Diesel Engines ◽  
Pressure Measurements ◽  
Cylinder Pressure ◽  
Performance Bounds ◽  
Dimensional Model ◽  
Heavy Duty ◽  
Light Duty ◽  
Proposed Model ◽  
Real Time Application

A real-time implementable, zero-dimensional model for predicting engine-out emissions of nitrogen oxides using in-cylinder pressure measurements is developed. The model is an extension of existing works in open literature that align well with the objectives of real-time implementation. The proposed model uses a simplified Zeldovich NOx mechanism that uses combustion-related parameters derived from simplified thermodynamic and combustion sub-models. The performance of the model is discussed for both a heavy-duty and a light-duty diesel engines. The model behavior is evaluated under input uncertainty so as to provide realistic performance bounds.

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