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Date of Award
2018
Document Type
Campus Access Master's Thesis
Degree Name
Master of Science in Mechanical Engineering (MS)
Administrative Home Department
Department of Mechanical Engineering-Engineering Mechanics
Advisor 1
Jason R. Blough
Committee Member 1
Jeffrey D. Naber
Committee Member 2
Mahdi Shahbakhti
Abstract
The automotive market is more competitive than ever and there is a need for cost-effective solutions to problems. One way to reduce cost is to reduce the number of sensors for engine diagnostics and control. The in-cylinder pressure transducer is a crucial sensor that provides important information on combustion. This sensor is too expensive and fragile for use in production.
In this study, investigations are done to estimate combustion metrics traditionally acquired from the in-cylinder pressure transducer using other sensors namely accelerometers and the exhaust pressure sensor. Attempts are made to reconstruct the in-cylinder pressure signal using the accelerometer signals. Correlation studies are carried out between the in-cylinder pressure signal characteristics such as peaks and the location of peaks and the exhaust pressure signal peaks/troughs and their locations.
The exhaust pressure sensor shows promising results for misfire and partial burn detection at low load engine running conditions.
Recommended Citation
Prabhu, Kaushik, "Sensor Fusion for Spark-Ignition Engines", Campus Access Master's Thesis, Michigan Technological University, 2018.