A Study of the Half Order Modulation Control for Diesel Combustion Noise by Using Model Based Controller Design
Published March 25, 2019 by SAE International in United States
Downloadable datasets for this paper availableAnnotation of this paper is available
This model based investigation is carried out in order to control the half order modulation for diesel engines using by virtual calibration approach and proposes a feedback control strategy to mitigate cylinder to cylinder imbalance from asymmetric cylinders torque production. Combustion heat release analysis is performed on test data to understand the root cause of observed cylinder to cylinder pressure variations. The injected fuel variations are shown to cause the observed pressure variations between cylinders. A feedback control strategy based on measured crank shaft position is devised to control the half order modulation to balance the combustion pressure profile between cylinders. This control strategy is implemented in Simulink and is tested in closed-loop with the diesel engine model in AMESim. The closed-loop performance indicates that the half order modulation is considerably improved while having minimal impact on the fuel consumption.
CitationLee, K., Nam, C., Kwon, O., Moon, J. et al., "A Study of the Half Order Modulation Control for Diesel Combustion Noise by Using Model Based Controller Design," SAE Technical Paper 2019-01-1416, 2019, https://doi.org/10.4271/2019-01-1416.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
- Reif, K., Diesel Engine Management, Systems and Components (Springer Vieweg, 2014).
- Isermann, R., Engine Modeling and Control (Springer-Verlag, 2014).
- AMESim, https://www.plm.automation.siemens.com/en/products /lms/imagine-lab/amesim/https://www.plm.automation.siemens.com/en/products%20/lms/imagine-lab/amesim/, observed on August 15, 2017.
- Simulink, https://www.mathworks.com/products/simulink.html, observed on August 15, 2017.
- Brunt, M.F.J. and Platts, K.C., “Calculation of Heat Release in Direct Injection Diesel Engines,” SAE Technical Paper 1999-01-0187, 1999, doi:10.4271/1999-01-0187.
- Woschni, G., “A Universally Applicable Equation for the Instantaneous Heat Transfer Coefficient in the Internal Combustion Engine,” SAE Technical Paper 670931, 1967, doi:10.4271/670931.