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Erik Hellström
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Journal Articles

A Linear Least-Squares Algorithm for Double-Wiebe Functions Applied to Spark-Assisted Compression Ignition

Erik Hellström, Anna Stefanopoulou, Li Jiang
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2014, 136(9): 091514.
Paper No: GTP-14-1096
DOI: https://doi.org/10.1115/1.4027277
Published Online: May 5, 2014
View Article titled, A Linear Least-Squares Algorithm for Double-Wiebe Functions Applied to Spark-Assisted Compression Ignition
Click here to open pdf in another window PDF for A Linear Least-Squares Algorithm for Double-Wiebe Functions Applied to Spark-Assisted Compression Ignition
Topics: Algorithms, Combustion, Heat, Cylinders, Flames, Compression, Stress, Ignition
Proceedings Papers

Online Adaptive Residual Mass Estimation in a Multicylinder Recompression HCCI Engine

Jacob Larimore, Shyam Jade, Erik Hellström, Anna G. Stefanopoulou, Julien Vanier, Li Jiang
Proc. ASME. DSCC2013, Volume 3: Nonlinear Estimation and Control; Optimization and Optimal Control; Piezoelectric Actuation and Nanoscale Control; Robotics and Manipulators; Sensing; System Identification (Estimation for Automotive Applications, Modeling, Therapeutic Control in Bio-Systems); Variable Structure/Sliding-Mode Control; Vehicles and Human Robotics; Vehicle Dynamics and Control; Vehicle Path Planning and Collision Avoidance; Vibrational and Mechanical Systems; Wind Energy Systems and Control, V003T41A005, October 21–23, 2013
Paper No: DSCC2013-3984
DOI: https://doi.org/10.1115/DSCC2013-3984
View Paper titled, Online Adaptive Residual Mass Estimation in a Multicylinder Recompression HCCI Engine
Click here to open pdf in another window PDF for Online Adaptive Residual Mass Estimation in a Multicylinder Recompression HCCI Engine
Topics: Homogeneous charge compression ignition engines, Cylinders, Combustion, Dynamics (Mechanics), Engines, Modeling, Parameter estimation, Valves, Cycles, Errors
Proceedings Papers

A Linear Least-Squares Algorithm for Double-Wiebe Functions Applied to Spark-Assisted Compression Ignition

Erik Hellström, Anna Stefanopoulou, Li Jiang
Proc. ASME. ICEF2013, Volume 1: Large Bore Engines; Advanced Combustion; Emissions Control Systems; Instrumentation, Controls, and Hybrids, V001T03A008, October 13–16, 2013
Paper No: ICEF2013-19068
DOI: https://doi.org/10.1115/ICEF2013-19068
View Paper titled, A Linear Least-Squares Algorithm for Double-Wiebe Functions Applied to Spark-Assisted Compression Ignition
Click here to open pdf in another window PDF for A Linear Least-Squares Algorithm for Double-Wiebe Functions Applied to Spark-Assisted Compression Ignition
Topics: Algorithms, Compression, Ignition, Cylinders, Pressure, Combustion, Diesel engines, Engines, Errors, Gasoline engines
Proceedings Papers

Model and Calibration of a Diesel Engine Air Path With an Asymmetric Twin Scroll Turbine

Mike J. Hand, III, Erik Hellström, Doohyun Kim, Anna Stefanopoulou, Justin Kollien, Craig Savonen
Proc. ASME. ICEF2013, Volume 1: Large Bore Engines; Advanced Combustion; Emissions Control Systems; Instrumentation, Controls, and Hybrids, V001T05A010, October 13–16, 2013
Paper No: ICEF2013-19134
DOI: https://doi.org/10.1115/ICEF2013-19134
View Paper titled, Model and Calibration of a Diesel Engine Air Path With an Asymmetric Twin Scroll Turbine
Click here to open pdf in another window PDF for Model and Calibration of a Diesel Engine Air Path With an Asymmetric Twin Scroll Turbine
Topics: Calibration, Diesel engines, Turbines, Flow (Dynamics), Exhaust gas recirculation, Pressure, Cylinders, Manifolds, Design, Engines
Proceedings Papers

Model-Based Feedback Control for an Automated Transfer Out of SI Operation During SI to HCCI Transitions in Gasoline Engines

Patrick Gorzelic, Erik Hellström, Anna Stefanopoulou, Jiang Li
Proc. ASME. DSCC2012-MOVIC2012, Volume 2: Legged Locomotion; Mechatronic Systems; Mechatronics; Mechatronics for Aquatic Environments; MEMS Control; Model Predictive Control; Modeling and Model-Based Control of Advanced IC Engines; Modeling and Simulation; Multi-Agent and Cooperative Systems; Musculoskeletal Dynamic Systems; Nano Systems; Nonlinear Systems; Nonlinear Systems and Control; Optimal Control; Pattern Recognition and Intelligent Systems; Power and Renewable Energy Systems; Powertrain Systems, 359-367, October 17–19, 2012
Paper No: DSCC2012-MOVIC2012-8779
DOI: https://doi.org/10.1115/DSCC2012-MOVIC2012-8779
View Paper titled, Model-Based Feedback Control for an Automated Transfer Out of SI Operation During SI to HCCI Transitions in Gasoline Engines
Click here to open pdf in another window PDF for Model-Based Feedback Control for an Automated Transfer Out of SI Operation During SI to HCCI Transitions in Gasoline Engines
Topics: Feedback, Gasoline engines, Homogeneous charge compression ignition engines, Combustion, Control equipment, Engines, Cycles, Ignition, Simulation, Switches
Proceedings Papers

Quantifying Cyclic Variability in a Multi-Cylinder HCCI Engine With High Residuals

Erik Hellström, Jacob Larimore, Anna Stefanopoulou, Jeff Sterniak, Li Jiang
Proc. ASME. ICES2012, ASME 2012 Internal Combustion Engine Division Spring Technical Conference, 297-306, May 6–9, 2012
Paper No: ICES2012-81107
DOI: https://doi.org/10.1115/ICES2012-81107
View Paper titled, Quantifying Cyclic Variability in a Multi-Cylinder HCCI Engine With High Residuals
Click here to open pdf in another window PDF for Quantifying Cyclic Variability in a Multi-Cylinder HCCI Engine With High Residuals
Topics: Cylinders, Homogeneous charge compression ignition engines, Combustion, Cycles, Engines, Air flow, Couplings, Fuels, Single-cylinder engines, Valves
Journal Articles

Quantifying Cyclic Variability in a Multicylinder HCCI Engine With High Residuals

Erik Hellström, Jacob Larimore, Anna Stefanopoulou, Jeff Sterniak, Li Jiang
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Internal Combustion Engines
J. Eng. Gas Turbines Power. November 2012, 134(11): 112803.
DOI: https://doi.org/10.1115/1.4007164
Published Online: September 28, 2012
View Article titled, Quantifying Cyclic Variability in a Multicylinder HCCI Engine With High Residuals
Click here to open pdf in another window PDF for Quantifying Cyclic Variability in a Multicylinder HCCI Engine With High Residuals
Topics: Combustion, Cycles, Cylinders, Engines, Fuels, Heat, Homogeneous charge compression ignition engines, Statistics