Stanford Energy Control Lab Simona Onori
Simona Onori

CAREER: Integrated Modeling and Control of Aftertreatment Systems for Clean, Efficient and High-Performing Gasoline Direct Injection Engines

Gasoline Direct Injection (GDI) engines are touted as providing superior performance, in terms of power out and fuel economy, to Port Fuel Injection (PFI) technology by using a stratified charge as opposed to the conventional homogeneous charge. The heterogenous charge though is responsible for certain diesel-like features leading to particles emitted by GDI vehicles to be higher than the Euro 6c limit of 6x10^11 #/km, particularly under real driving conditions.  Particulate emissions are associated with many adverse health effects, including decreased lung function in both children and adults. As the number of vehicles using GDI engines is predicted to increase in the next years (read more about market trends here and here), the need to safeguard public health by mitigating particulate emissions becomes an urgent social concern.

In this project we focus on new exhaust gas aftertreatment technologies for GDI engines, based on a interdisciplinary approach at the intersection of macroscale modeling, numerical simulations, experimental investigation, estimation and control, and optimization theory. The systems we are predominantly interested in are three-way catalytic converters and gasoline particulate filters.

This project is supported by the National Science Foundation through CAREER Award number CMMI-1839050.

RELEVANT PUBLICATIONS

  • Korneev, S., Onori, S., "Modeling the Flow and Transport Dynamics in Gasoline Particulate Filters to Improve Filtration Efficiency", accepted ASME Journal of Dynamic Systems, Measurement, and Control, 2020
  • Arunachalam, H., Pozzato, G., Hoffman, M., Onori, S., “Modeling the thermal and soot oxidation dynamics inside a ceria-coated gasoline particulate filter,” Control Engineering Practice, Vol. 94 Jan. 2020
  • Rathod, D., Filipi, Z., Onori, S., and Hoffman, M. A., “Experimental Investigation of Soot Accumulation and Regeneration in a Catalyzed Gasoline Particulate Flter utilizing Particulate Quantification and Gas Speciation Measurements”, 2018 ASME Internal Combustion Fall Technical Conference, San Diego, CA, Nov. 4-7, 2018
  • Takahashi, A., Korneev, S., Onori, S. “Sensitivity Study on Thermal and Soot Oxidation Dynamics of Gasoline Particulate Filters”, 2019 SAE World Congress, Detroit, MI, April 10-12, 2019 Technical Paper 2019-01-0990
  • Moser, S., Onori, S., and Hoffman, M. A., “Design and Experimental Validation of a Spatially Discretized, Control-Oriented Temperature Model for a Ceria-Washcoated Gasoline Particulate Filter”, 2018 ASME Internal Combustion Fall Technical Conference, San Diego, CA, Nov. 4-7, 2018
  • Korneev, S., Onori, S., Modeling the Transport Dynamics in Gasoline Particulate Filters,  Proceedings of the ASME 2018 Dynamic Systems and Control Conference, Atlanta, GA, Sept 30 - Oct 3, 2018
  • Arunachalam, H., Pozzato, G., Hoffman, M., Onori. S., “Modeling the thermal dynamics inside a ceria-coated Gasoline Particulate Filter”, IEEE Conference on Control Technology and Applications, Kohala Coast, Hawai'i, USA, August 27-30, 2017