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http://dx.doi.org/10.7467/KSAE.2015.23.6.623

A Control Strategy of Fuel Injection Quantity and Common-rail Pressure to Reduce Particulate Matter Emissions in a Transient State of Diesel Engines  

Hong, Seungwoo (Automotive Control & Electronics Laboratory, Hanyang University)
Jung, Donghyuk (Department of Automotive Engineering, Graduate School, Hanyang University)
Sunwoo, Myoungho (Department of Automotive Engineering, Hanyang University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.23, no.6, 2015 , pp. 623-632 More about this Journal
Abstract
This study proposes a control strategy of the common rail pressure with a fuel injection limitation algorithm to reduce particulate matter (PM) emissions under transient states. The proposed control strategy consists of two parts: injection quantity limitation and rail pressure adaptation. The injection limitation algorithm determines the maximum allowable fuel injection quantity to avoid rich combustion under transient states. The fuel injection quantity is limited by predicting the burned gas rate after combustion; however, the reduced injection quantity leads to deterioration of engine torque. The common rail pressure adaptation strategy is designed to compensate for the reduced engine torque. An increase of the rail pressure under transient states contributes to enhancement of the engine torque as well as reduction of PM emissions by promoting atomization of the injected fuel. The proposed control strategy is validated through engine experiments. The rail pressure adaptation reduced the PM emission by 5-10% and enhanced the engine torque up to 2.5%.
Keywords
Diesel engine; Transient emissions; Common rail pressure control; Particulate matter control; Fuel injection control;
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Times Cited By KSCI : 5  (Citation Analysis)
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1 L. Guzzella and A. Amstutz, "Control of Diesel Engines," Control Systems, IEEE, Vol.18, Issue 5, pp.53-71, 1998.   DOI
2 I. Park, S. Hong and M. Sunwoo, "Robust Air-to-fuel Ratio and Boost Pressure Controller Design for the EGR and VGT Systems Using Quantitative Feedback Theory," IEEE Transactions on Control Systems Technology, Vol.22, Issue 6, pp.2218-2231, 2014.   DOI
3 S. Hong, I. Park, J. Sohn and M. Sunwoo, "Dynamic Decoupler Design for EGR and VGT Systems in Passenger Car Diesel Engines," Transactions of KSAE, Vol.22, No.2, pp.182-189, 2014.   DOI
4 T. Lee, J. Kim, J. Park, S. Jeon, J. Lee and J. Kim, "Influence of Driving Routes and Seasonal Conditions to Real-driving NOx Emissions from Light Diesel Vehicles," Transactions of KSAE, Vol.22, No.1, pp.148-156, 2014.
5 P. Kapus, M. Neubaue and G. Fraidl, "The Future of the Stoichiometric Gasoline Engine-Less Consumption and More Output," MTZ Worldwide, Vol.75, No.11, pp.24-29, 2014.
6 F. Yan and J. Wang, "Air- and Fuel-path Coordinated Control for Advanced Combustion Mode Transitions in Diesel Engines," Montreal, QC, pp.2890-2895, 2012.
7 J. Chauvin, G. Corde and N. Petit, "Transient Control of a Diesel Engine Airpath," American Control Conference, New York, pp.4394-4400, 2007.
8 M. Hillion, J. Chauvin and N. Petit, "Control of Highly Diluted Combustion in Diesel Engines," Control Engineering Practice, Vol.19, No.11, pp.1274-1286, 2011.   DOI
9 S. Zentner, E. Schafer, C. Onder and L. Guzzella, "Model-based Injection and EGR Adaptation and its Impact on Transient Emissions and Drivability of a Diesel Engine," 7th IFAC Symposium on Advances in Automotive Control, Tokyo, Japan, pp.89-94, 2013.
10 K. Lee, I. Park, M. Sunwoo and W. Lee, "AUTOSAR-ready Light Software Architecture for Automotive Embedded Control Systems," Transactions of KSAE, Vol.21, No.1, pp.68-77, 2013.   DOI
11 I. Park, W. Lee and M. Sunwoo, "Application Software Modeling and Integration Methodology Using AUTOSAR-ready Light Software Architecture," Transactions of KSAE, Vol.20, No.6, pp.117-125, 2012.   DOI
12 S. Hong, J. Shin, J. Sohn, I. Park and M. Sunwoo, "Coordinated Control Strategy for the Common-rail Pressure Using a Metering Unit and a Pressure Control Valve in Diesel Engines," Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, p.0954407014549062, 2014.
13 J. Shin, S. Hong, I. Park and M. Sunwoo, "Common Rail Pressure Control Algorithm for Passenger Car Diesel Engines Using Quantitative Feedback Theory," Transactions of KSME-B, Vol.38, No.2, pp.107-114, 2014.
14 M. Roy and H. Tsunemoto, "Effect of Injection Pressure and Split Injection on Exhaust Odor and Engine Noise in DI Diesel Engines," SAE 2002-01-2874, 2002.