In-Cylinder Pressure Based Real-Time Estimation of Engine-Out Particulate Matter Emissions of a Diesel Engine

Çebi, Emrah Cihan; Rottenkolber, Gregor; Uyar, Erol

doi:10.4271/2011-01-1440

Cited by 9 publications

(3 citation statements)

References 16 publications

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“…As a matter of fact, rarely papers present models developed and validated on more than one engine. 33 D’Ambrosio et al 20 developed a control oriented NOx model which they calibrated on a 2.0 L engine with Indirect Acting Piezo (IAP) injectors. In all, 900 points were used, one half for calibration and the other half for validation.…”

Section: State Of the Art In Nox And Soot Models Calibrationmentioning

confidence: 99%

Semi-physical NOx and soot model for CI engines: Study of its calibration procedure and portability

Karaky

Marty

Tauzia

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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A series of papers has previously presented a semi-physical model for NOx and soot emissions prediction for diesel engines. In this paper, the work is continued with an original analysis of the model’s capacity to be ported to a new engine and a sensitivity analysis of the number of training points required to obtain the desired accuracy. These two aspects are rarely developed in similar studies.

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Section: State Of the Art In Nox And Soot Models Calibrationmentioning

confidence: 99%

Semi-physical NOx and soot model for CI engines: Study of its calibration procedure and portability

Karaky

Marty

Tauzia

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…1 In-cylinder pressures were also used when modeling NOx or PM formation. 4–8 The pressure data were used primarily to calculate the heat release rate (HRR) and in-cylinder temperature in these studies. The maximum burned temperature can be derived using the maximum in-cylinder pressure to predict engine-out NO emissions.…”

Section: Introductionmentioning

confidence: 99%

Semi-empirical estimation model of in-cylinder pressure for compression ignition engines

Lee

Min

2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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There have been significant efforts in recent years to comply with automotive emission regulations. To resolve the issue, researchers have strived to reduce the emissions through combustion control. The heat release rate, or in-cylinder pressure information, is necessary to model engine-out emissions, and can also be used to optimize efficiency and emissions by controlling combustion and estimating torque for torque-based engine dynamic control. Piezoelectric pressure sensors are widely used. However, because of cost and durability issues, there have been studies which estimate the in-cylinder pressure using data available only from the engine control unit to reduce engine costs. Therefore, in this study, in-cylinder pressure was predicted, without additional pressure sensors, in light-duty diesel engines. A variable polytropic exponent model was first adopted during the compression stroke, assuming a polytropic process. A Wiebe function was then applied for describing cumulative heat release rate during the combustion phase. Using the in-cylinder pressure model, it was possible to calculate combustion-related parameters which are frequently used such as ignition delay, combustion duration, peaked pressure, and MFB50 (mass fraction burned: timing when 50% of the fuel is burned) without pressure sensors. Notwithstanding the simplification of the model which is targeting real-time applications, the model can predict the in-cylinder pressure at steady-state conditions. The pressure at the end of compression stroke, at start of main combustion timing, and when it has a peaked value by the main combustion were estimated with accuracy of R2 0.996, 0.993, and 0.956, respectively, in test engine. The model was also validated against a second engine. This study can contribute to emission models that need to calculate in-cylinder temperature using pressure data, and other studies to establish engine control strategies, including optimization through combustion control and torque prediction, which can be applied to engine dynamic control.

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“…In [13], a neural network was used to predict emissions of the direct injection diesel engine. The authors of the paper [14] presented a method of real-time estimation of engine-out particulate matter emissions of a diesel engine using in-cylinder pressure signal.…”

Section: Introductionmentioning

confidence: 99%

Experimental research of two stroke aircraft diesel engine

Grabowski¹,

Karpiński²,

Barański³

2019

Combustion Engines

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This paper presents the results of experimental studies of the opposed-piston diesel engine. This engine was designed during one of the stages of the research on a new-type drive unit for gyrocopter applications. In order to conduct research, a special test stand as well as control and measurement systems were developed. As part of the work on the engine, the fuel injection system, engine temperature control system and measurement systems were designed. In addition, a computer program has been developed for the fuel injection system control (injectors, valves fuel pressure regulators). The paper presents the results of the preliminary tests for a single value of engine speed (1500 rpm) and three values of load defined by torque. The measured value of the indicated pressure made it possible to calculate the maximum pressure. The results obtained from the bench tests were analyzed.

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In-Cylinder Pressure Based Real-Time Estimation of Engine-Out Particulate Matter Emissions of a Diesel Engine

Cited by 9 publications

References 16 publications

Semi-physical NOx and soot model for CI engines: Study of its calibration procedure and portability

Semi-physical NOx and soot model for CI engines: Study of its calibration procedure and portability

Semi-empirical estimation model of in-cylinder pressure for compression ignition engines

Experimental research of two stroke aircraft diesel engine

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