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Closed-Loop Control for Diesel Combustion Noise Using Engine Vibration Signals
ISSN: 0148-7191, e-ISSN: 2688-3627
Published June 15, 2015 by SAE International in United States
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The combustion noise of a diesel engine can be deteriorated by combustion characteristics such as the maximum rate of heat release and the start of combustion. These combustion characteristics in turn are influenced by the factors such as the engine NVH durability, driving conditions, environmental factors and fuel properties. Therefore, we need to develop the robust combustion noise that is insensitive to these factors. To achieve this aim, methods for predicting combustion characteristics has been developed by analyzing the vibration signal measured from the engine cylinder block. The closed-loop control of injection parameters through combustion characteristics prediction has been performed to produce the desired engine combustion performance. We constructed an ECU logic for the closed-loop control and verified the design in a diesel passenger car. We also evaluated the effect of combustion noise and fuel consumption by applying the closed-loop control.
CitationJung, 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, https://doi.org/10.4271/2015-01-2297.
- 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.
- Heywood John B., “Internal Combustion Engine Fundamentals,” 1988.