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Closed-Loop Control Method for Monitoring and Improving the Diesel Combustion Noise
ISSN: 0148-7191, e-ISSN: 2688-3627
Published June 15, 2016 by SAE International in United States
Annotation ability available
Event: 9th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference
This paper presents two closed-loop control methods for monitoring and improving the combustion behavior and the combustion noise on two 4-cylinder diesel engines, in which an in-cylinder pressure and an accelerometer transducer are used to monitor and control them. Combustion processes are developed to satisfy the stricter and stricter regulations on emissions and fuel consumption. These combustion processes are influenced by the factors such as engine durability, driving conditions, environmental influences and fuel properties. Combustion noise could be increased by these factors and is detrimental to interior sound quality. Therefore, it is necessary to develop robust combustion behaviors and combustion noise. For this situation, we have developed two closed-loop control methods. Firstly, a method using in-cylinder pressure data was developed for monitoring and improving the combustion noise of a 1.7L engine. A new index using the values calculated from the data was proposed. The closed-loop control based on the new index produced the desired combustion noise by using some injection parameters. Secondly, a method for predicting the combustion behavior of a 1.6L engine was developed by analyzing the vibration signals obtained from the engine cylinder block. The closed-loop control based on a combustion factor, indicates combustion behavior that we wanted, produced the desired combustion behavior.
CitationJung, I., Jin, J., Lee, D., Lee, S. et al., "Closed-Loop Control Method for Monitoring and Improving the Diesel Combustion Noise," SAE Technical Paper 2016-01-1770, 2016, https://doi.org/10.4271/2016-01-1770.
- Ping, W., Xi-geng, S., Dong-xin, X., Hai-tao, Z. et al., "Effect of Combustion Process on DI Diesel Engine Combustion Noise," SAE Technical Paper 2007-01-2076, 2007, doi:10.4271/2007-01-2076.
- Heywood John B., “Internal Combustion Engine Fundamentals”
- Schaberg, P., Priede, T., and Dutkiewicz, R., "Effects of a Rapid Pressure Rise on Engine Vibration and Noise," SAE Technical Paper 900013, 1990, doi:10.4271/900013.
- Jung, I., Jin, J., So, H., Nam, C. et al., "An Advanced Method for Developing Combustion Noise through the Analysis of Diesel Combustion," SAE Int. J. Engines 6(2):1379-1385, 2013, doi:10.4271/2013-01-1901.
- Carlucci, A., Chiara, F., and Laforgia, D., "Block Vibration as a Way of Monitoring the Combustion Evolution in a Direct Injection Diesel Engine," SAE Technical Paper 2006-01-1532, 2006, doi:10.4271/2006-01-1532.
- Chiavola, O., Chiatti, G., Arnone, L., and Manelli, S., "Combustion Characterization in Diesel Engine via Block Vibration Analysis," SAE Technical Paper 2010-01-0168, 2010, doi:10.4271/2010-01-0168.
- Chiavola, O., Chiatti, G., and Recco, E., "Accelerometer Measurements to Optimize the Injection Strategy," SAE Technical Paper 2012-01-1341, 2012, doi:10.4271/2012-01-1341.
- Taglialatela-Scafati, F., Cesario, N., Lavorgna, M., Mancaruso, E. et al., "Diagnosis and Control of Advanced Diesel Combustions using Engine Vibration Signal," SAE Technical Paper 2011-01-1414, 2011, doi:10.4271/2011-01-1414.
- Jung, I., Jin, J., Won, K., Yang, S. et al., "Closed-Loop Control for Diesel Combustion Noise Using Engine Vibration Signals," SAE Technical Paper 2015-01-2297, 2015, doi:10.4271/2015-01-2297.
- Tousignant, T., Wellmann, T., Govindswamy, K., Heuer, S. et al., "Application of Combustion Sound Level (CSL) Analysis for Powertrain," SAE Technical Paper 2009-01-2168, 2009, doi:10.4271/2009-01-2168.