This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Simultaneous Control Optimization of Variable-Geometry Turbocharger and High Pressure EGR on a Medium Duty Diesel Engine
Technical Paper
2021-01-1178
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
This research examines the interdependence of the control strategies of a high-pressure exhaust gas recirculation (HP-EGR) and a variable geometry turbocharger (VGT) on a medium-duty diesel engine in transient load operation. The effect on fuel economy, particulate and NO production were investigated through multiple tests of synchronously controlled VGT and EGR positions. An optimal steady-state strategy of the above determinants was defined as a function of the VGT’s boost pressure and EGR percent mass. The optimal steady-state strategy was then used to investigate the interdependence of the VGT and HP-EGR in transient load acceptence events which occurred over a range of 2 to 10 seconds. The faster transients increased deviations of boost and EGR levels from steady-state calibration values which consequently led to corresponding fuel consumption and particulate matter emission increases. These tests established that under the transient conditions the control strategies implemented in this work led to reduced boost pressure and increased EGR relative to the optimum steady state values. With this established, proactive EGR and VGT control policies were developed with the goal to minimize this transient degradation. Policies which advanced VGT and retarded EGR actuator openings were able to recover up to 75% of the degradation during the most rapid transient load acceptance.
Authors
Topic
Citation
Pennington PhD, J., Puzinauskas, P., and Cook, J., "Simultaneous Control Optimization of Variable-Geometry Turbocharger and High Pressure EGR on a Medium Duty Diesel Engine," SAE Technical Paper 2021-01-1178, 2021, https://doi.org/10.4271/2021-01-1178.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 | ||
Unnamed Dataset 4 | ||
Unnamed Dataset 5 | ||
Unnamed Dataset 6 |
Also In
References
- 21 Feb. 2019 www.epa.gov/regulations-emissions-vehicles-and-engines/cleaner-trucks-initiative
- O'Connor , J. and Musculus , M. Post Injections for Soot Reduction in Diesel Engines: A Review of Current Understanding SAE Int. J. Engines 6 1 2013 400 421 https://doi.org/10.4271/2013-01-0917
- www.cambustion.com/products/egr
- Mohankumar , S. and Senthilkumar , P. Particulate Matter Formation and Its Control Methodologies for Diesel Engine: A Comprehensive Review Renewable and Sustainable Energy Reviews 80 2017 1227 1238 10.1016/j.rser.2017.05.133
- Rajamani , R. Control of a Variable-Geometry Turbocharged and Wastegated Diesel Engine Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 219 11 2005 1361 1368 10.1243/095440705x34964
- Wahlstrom , J. , and Eriksson , L. Nonlinear EGR and VGT Control with Integral Action for Diesel Engines Proceedings of the 2009 IFAC Workshop on Engine and Powertrain Control, Simulation and Modeling Dec. 2009
- Atkinson , C. , Allain , M. , and Zhang , H. Using Model-Based Rapid Transient Calibration to Reduce Fuel Consumption and Emissions in Diesel Engines SAE Technical Paper 2008-01-1365 2008 https://doi.org/10.4271/2008-01-1365
- Grahn , M. , Johansson , K. , and McKelvey , T. Model-Based Diesel Engine Management System Optimization for Transient Engine Operation Control Engineering Practice 29 August 2014 103 114
- https://www.cambustion.com/sites/default/files/instruments/CLD500/Cambustion500seriesgasanalyzers.pdf
- TSI.com tsi.com/products/particle-sizers/particle-size-spectrometers/engine-exhaust-particle-sizer-spectrometer-3090
- www.ecm-co.com/product.asp?5230
- Montgomery , D. and Reitz , R. Optimization of Heavy-Duty Diesel Engine Operating Parameters Using a Response Surface Method SAE Technical Paper 2000-01-1962 2000 https://doi.org/10.4271/2000-01-1962