Fuel evaporation parameter identification during SI cold start
Document Type
Conference Proceeding
Publication Date
3-5-2001
Department
Department of Electrical and Computer Engineering
Abstract
The stochastic properties of continuous time model parameters obtained through discrete least squares estimation are examined. Particular attention is given to the application of estimating the fuel evaporation dynamics of a V-8 SI engine. The continuous time parameter distributions in this case are biased. The bias is shown to be a function of both measurement noise and sampling rate selection. Analysis and experimental results suggest that for each particular model, there is a corresponding optimum sampling rate. A bias compensation formula is proposed that improves the accuracy of least squares estimation without iterative techniques.
Publication Title
SAE Technical Papers
Recommended Citation
Pakkala, J.,
&
Burl, J. B.
(2001).
Fuel evaporation parameter identification during SI cold start.
SAE Technical Papers.
http://doi.org/10.4271/2001-01-0552
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/14271