Single-zone Diesel PPC modeling for control

Widd, Anders; Tunestål, Per; Åkesson, Johan; Johansson, Rolf

doi:10.1109/acc.2012.6315063

Cited by 8 publications

(3 citation statements)

References 19 publications

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“…Being this research focused on the development of a comprehensive exergy-based model for the ICE, c (-) − log(0.001) [28] d (-) 2 [29] f N2,0 (-) 0.7567 [21] f CO2,0 (-) 0.0003 [21] f H2O,0 (-) 0.0303 [21] f O2,0 (-) 0.2035 [21] f others,0 (-) 0.0092 [21] r c (-) 17.5:1 [24] n cyl (-) 8…”

Section: Vehicle Technical Specificationsmentioning

confidence: 99%

Mean-value exergy modeling of internal combustion engines: characterization of feasible operating regions

Pozzato,

Rizzo,

Onori

2021

Preprint

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In this paper, a novel mean-value exergy-based modeling framework for internal combustion engines is developed. Starting from a detailed description of the in-cylinder dynamics, the exergy balance is solved for each engine operating point and, for the first time, static maps describing the availability transfer and destruction phenomena as a function of speed and load are derived. The application of the proposed modeling strategy, from the construction of the static maps to their usage, is shown for a military series hybrid electric vehicle. Ultimately, these static maps, while providing insightful information about inefficiencies over the whole operating field of the engine, are the enabling step for the development of exergy-based control strategies aiming at minimizing the overall operational losses of ground vehicles.

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Section: Vehicle Technical Specificationsmentioning

confidence: 99%

Mean-value exergy modeling of internal combustion engines: characterization of feasible operating regions

Pozzato,

Rizzo,

Onori

2021

Preprint

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“…The ignition delay is influenced by the temperature T ID , pressure P ID , oxygen and fuel concentrations [O 2 ] and [C x H y ] of the cylinder charge after injection as explained in Widd et al (2012) and Widd (2012), which can be modelled as equation (18).…”

Section: Ignition Delay Estimationmentioning

confidence: 99%

Partially premixed combustion multi-cylinder engine cycle-to-cycle-oriented temperature estimation and control

Yin

Ingesson

Tunestål

et al. 2017

IJPT

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Advanced combustion concepts like partially premixed combustion (PPC) are sensitive to inlet gas conditions especially inlet temperature. To estimate the combustion parameters like ignition delay on a cycle-to-cycle basis, both complementary filter and extended Kalman filter were designed to estimate the inlet temperature, and the ignition delay was calculated with properly estimated temperature. A two valve fast thermal management system was used to control the inlet temperature, and a PI controller with the lambda tuning method was used. The estimation and control algorithm were verified on a six-cylinder heavy duty engine.

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“…Yet, due to the complexity in predicting the in-cylinder pressure accurately and the computational intensity, the Wiebe function was not further utilized to compute the in-cylinder pressure and indicated mean effective pressure (IMEP), instead a temperature-dependent correlation was used. 30 In an effort to control gasoline partial premixed combustion (PPC), Yin et al 31 used a modified physics-based correlation that had been previously used by Widd et al 32 for diesel PPC. The physics-based correlation, initially developed by Pirker et al 21 and Chmela et al, 33 was also leveraged within this modeling approach.…”

Section: Introductionmentioning

confidence: 99%

A control-oriented combustion model framework for compression ignition engines operating on low-reactivity fuel

Pamminger

Hall

Wang

et al. 2020

International Journal of Engine Research

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This work focuses on zero-dimensional modeling of the heat release rate in a compression ignition engine operating on gasoline-like fuels. Due to the properties of gasoline, such as high volatility and longer ignition delay than diesel, the injection strategies can vary significantly from the operation with conventional diesel fuel. Different injection strategies are commonly used to achieve varying degrees of in-cylinder stratification in order to shape the combustion event and maximize efficiency. The proposed zero-dimensional combustion model was developed to account for the different stages in combustion caused by the fuel stratification. As the ignition delay model is an integral part of the entire combustion process and significantly affects the prediction accuracy, special attention has been paid to local phenomena influencing ignition delay. A one-dimensional spray model by Musculus and Kattke was employed in conjunction with a Lagrangian tracking approach in order to estimate the local air–fuel ratio within the spray tip, as a proxy for reactivity. The local air–fuel ratio, in-cylinder temperature and pressure were used in an integral fashion to estimate the ignition delay. Heat release rates were modeled using first-order non-linear differential equations. The proposed combustion model was validated against experimental data of a heavy-duty compression ignition engine with up to three injection events at mostly 1038 r/min and 14 bar brake mean effective pressure. Further validation of the model was carried out at other engine loads and speeds. Model prediction errors in CA50 of less than 1 °CA across all conditions were found. Modeling results of other combustion metrics such as combustion duration and indicated mean effective pressure are also highly satisfactory. In addition, the model has been shown to be capable of estimating the ringing intensity for most conditions.

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Single-zone Diesel PPC modeling for control

Cited by 8 publications

References 19 publications

Mean-value exergy modeling of internal combustion engines: characterization of feasible operating regions

Mean-value exergy modeling of internal combustion engines: characterization of feasible operating regions

Partially premixed combustion multi-cylinder engine cycle-to-cycle-oriented temperature estimation and control

A control-oriented combustion model framework for compression ignition engines operating on low-reactivity fuel

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