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You searched for +publisher:"Clemson University" +contributor:("Dr. Qilun Zhu"). One record found.

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1. Koli, Rohit Vishvanath. Model Predictive Control of Modern High-Degree-of-Freedom Turbocharged Spark Ignited Engines with External Cooled EGR.

Degree: PhD, Automotive Engineering, 2018, Clemson University

The efficiency of modern downsized SI engines has been significantly improved using cooled Low-Pressure Exhaust Gas Recirculation, Turbocharging and Variable Valve Timing actuation. Control of these sub-systems is challenging due to their inter-dependence and the increased number of actuators associated with engine control. Much research has been done on developing algorithms which improve the transient turbocharged engine response without affecting fuel-economy. With the addition of newer technologies like external cooled EGR the control complexity has increased exponentially. This research proposes a methodology to evaluate the ability of a Model Predictive Controller to coordinate engine and air-path actuators simultaneously. A semi-physical engine model has been developed and analyzed for non-linearity. The computational burden of implementing this control law has been addressed by utilizing a semi-physical engine system model and basic analytical differentiation. The resulting linearization process requires less than 10% of the time required for widely used numerical linearization approach. Based on this approach a Nonlinear MPC-Quadratic Program has been formulated and solved with preliminary validation applied to a 1D Engine model followed by implementation on an experimental rapid prototyping control system. The MPC based control demonstrates the ability to co-ordinate different engine and air-path actuators simultaneously for torque-tracking with minimal constraint violation. Avenues for further improvement have been identified and discussed. Advisors/Committee Members: Dr. Robert Prucka, Committee Chair, Dr. Zoran Filipi, Dr. Qilun Zhu, Dr. Srikanth Pilla.

Subjects/Keywords: EGR; Internal Combustion Engine; Model Predictive Control

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APA (6th Edition):

Koli, R. V. (2018). Model Predictive Control of Modern High-Degree-of-Freedom Turbocharged Spark Ignited Engines with External Cooled EGR. (Doctoral Dissertation). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_dissertations/2211

Chicago Manual of Style (16th Edition):

Koli, Rohit Vishvanath. “Model Predictive Control of Modern High-Degree-of-Freedom Turbocharged Spark Ignited Engines with External Cooled EGR.” 2018. Doctoral Dissertation, Clemson University. Accessed April 06, 2020. https://tigerprints.clemson.edu/all_dissertations/2211.

MLA Handbook (7th Edition):

Koli, Rohit Vishvanath. “Model Predictive Control of Modern High-Degree-of-Freedom Turbocharged Spark Ignited Engines with External Cooled EGR.” 2018. Web. 06 Apr 2020.

Vancouver:

Koli RV. Model Predictive Control of Modern High-Degree-of-Freedom Turbocharged Spark Ignited Engines with External Cooled EGR. [Internet] [Doctoral dissertation]. Clemson University; 2018. [cited 2020 Apr 06]. Available from: https://tigerprints.clemson.edu/all_dissertations/2211.

Council of Science Editors:

Koli RV. Model Predictive Control of Modern High-Degree-of-Freedom Turbocharged Spark Ignited Engines with External Cooled EGR. [Doctoral Dissertation]. Clemson University; 2018. Available from: https://tigerprints.clemson.edu/all_dissertations/2211

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