Model-based design of dynamic firing patterns for supervisory control of diesel engine vibration

Gosala, Dheeraj B; Raghukumar, Harikrishnan; Allen, Cody M; Shaver, Gregory M.; McCarthy, James E.; Lutz, Timothy P.

doi:10.1016/j.conengprac.2020.104681

Cited by 8 publications

(5 citation statements)

References 27 publications

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“…According to these results, the algorithm can choose the most suitable firing pattern for each situation. Lengthening the firing pattern could help to minimize torsional vibration [81]. The examples of phase-angle diagrams of different cylinder deactivation sequencies are shown in Fig.…”

Section: One Cyclementioning

confidence: 99%

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Overview of the potential and limitations of cylinder deactivation

Fridrichová

Drápal

Vopařil

et al. 2021

Renewable and Sustainable Energy Reviews

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Section: One Cyclementioning

confidence: 99%

“…CDA is not currently used in any diesel production vehicle [81]. Compression ignition engines are usually fuelled by diesel.…”

Section: Compression Ignition Enginesmentioning

confidence: 99%

Overview of the potential and limitations of cylinder deactivation

Fridrichová

Drápal

Vopařil

et al. 2021

Renewable and Sustainable Energy Reviews

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“…NVH behavior of the engine is affected mainly due to torsional vibrations. This topic is beyond the scope of this research, but is thoroughly addressed in Gosala et al 9 In recent years, strict emission standards have introduced the CDA strategies also in the Diesel engines. Compression ignition engines does not suffer from high pumping losses such as stoichiometric ratio mixture SI engines.…”

Section: Introductionmentioning

confidence: 99%

Dynamic cylinder deactivation: Thermodynamic mapping for the case of stoichiometric SI ICE

Bolehovský

Vítek

Mares

2022

International Journal of Engine Research

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Conventional cylinder deactivation has been improving internal combustion efficiency for decades. It provides benefits for any internal combustion engine, particularly engines with high number of cylinders. The level of engine displacement reduction depends on the number of cylinders that may be deactivated during operation. This limits the potential benefit. Theoretically, maximum benefit of cylinder deactivation would require assignment of specific displacement reduction to each engine operating point. Dynamic cylinder deactivation is a new approach, which does not continuously deactivate cylinders, but deactivates selected engine cycles. This allows to dynamically reduce engine displacement and to assign optimum displacement reduction to each operating point. The paper deals with the one-dimensional thermodynamic simulation of the dynamic cylinder deactivation applied to a small displacement four-cylinder gasoline engine, points out crucial attributes of this new approach and compares it with baseline engine layouts and with the conventional cylinder deactivation as well. The research concludes that the dynamic cylinder deactivation improves the fuel consumption for engines loads BMEP < 5 bar. Deactivation strategy with the lowest trapped mass value in the deactivated cycle shows the most benefit.

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“…FRP (Fuel Rail Pressure) and MAF (Mass Air Flow) sensors play a critical role in the performance and efficiency of compression ignition engines [ 8 ]. Their relevance lies in several fundamental aspects that directly affect the optimal performance of these engines: Fuel Injection Control, Air–Fuel Mixture, Power and Efficiency, Emission Reduction [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

A Vibration Analysis for the Evaluation of Fuel Rail Pressure and Mass Air Flow Sensors on a Diesel Engine: Strategies for Predictive Maintenance

Mafla-Yépez,

Castejon,

Rubio

et al. 2024

Sensors

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This research focuses on the analysis of vibration of a compression ignition engine (CIE), specifically examining potential failures in the Fuel Rail Pressure (FRP) and Mass Air Flow (MAF) sensors, which are critical to combustion control. In line with current trends in mechanical system condition monitoring, we are incorporating information from these sensors to monitor engine health. This research proposes a method to validate the correct functioning of these sensors by analysing vibration signals from the engine. The effectiveness of the proposal is confirmed using real data from a Common Rail Direct Injection (CRDi) engine. Simulations using a GT 508 pressure simulator mimic FRP sensor failures and an adjustable potentiometer manipulates the MAF sensor signal. Vibration data from the engine are processed in MATLAB using frequency domain techniques to investigate the vibration response. The results show that the proposal provides a basis for an efficient predictive maintenance strategy for the MEC engine. The early detection of FRP and MAF sensor problems through a vibration analysis improves engine performance and reliability, minimizing downtime and repair costs. This research contributes to the advancement of monitoring and diagnostic techniques in mechanical engines, thereby improving their efficiency and durability.

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Model-based design of dynamic firing patterns for supervisory control of diesel engine vibration

Cited by 8 publications

References 27 publications

Overview of the potential and limitations of cylinder deactivation

Overview of the potential and limitations of cylinder deactivation

Dynamic cylinder deactivation: Thermodynamic mapping for the case of stoichiometric SI ICE

A Vibration Analysis for the Evaluation of Fuel Rail Pressure and Mass Air Flow Sensors on a Diesel Engine: Strategies for Predictive Maintenance

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