Application of Symbolic Regression to Electrochemical Impedance Spectroscopy Data for Lubricating Oil Health Evaluation

Carl Byington, Nicholos Mackos, Garrett Argenna, Andrew Palladino, Johan Reimann, and Joel Schmitigal
Submission Type: 
Full Paper
Supporting Agencies (optional): 
US Army TARDEC
AttachmentSizeTimestamp
phmc_12_112.pdf6.64 MBSeptember 13, 2012 - 11:46am

The authors have applied an advanced set of auto-regressive tools for identifying potentially complex, linear and non-linear relationships in data, wherein the underlying physical relationships are not well described. In this paper these tools and techniques are described in detail, and the results of the application of these tools to evaluation of diesel engine lubricating oil health (based on electrochemical impedance spectroscopy data) is detailed. It is demonstrated that highly accurate models can be constructed which take as input features derived from diesel engine lubricating oil electrochemical impedance spectroscopy data and output estimates of traditional laboratory based oil analysis parameters. The electrochemical impedance spectroscopy and laboratory analytical data used are from a field deployment of oil condition sensors on several long-haul class 8 diesel trucks. The dataset was divided into training and test datasets and goodness of fit metrics were calculated to evaluate model performance. Models were successfully generated for nitration, soot content, total base number, total acid number, and viscosity.

Publication Year: 
2012
Publication Volume: 
3
Publication Control Number: 
112
Page Count: 
10
Submission Keywords: 
Remaining Useful Life Estimation
Electrochemical Impedance Spectroscopy
Symbolic Regression
Oil Analysis
Genetic Programming
Submission Topic Areas: 
Data-driven methods for fault detection, diagnosis, and prognosis
Modeling and simulation
Sensors
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