Lamborghini Approach to Engine Downsizing Engine Friction Modeling

Meloni, Marco; Cacciatore, Diego; Dohmen, R. Jürgen; Ring, Felix; Hermsen, Franz-Gerd

doi:10.4271/2013-24-0088

Cited by 7 publications

(1 citation statement)

References 1 publication

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“…Many ICE models can be found in the literature, both for engine losses evaluation (Sandoval, 2002;Kamil et al, 2013;Meloni et al, 2013;Sorrentino et al, 2015) and dynamic behaviour analysis (Karmiggel, 1998;Vinsonneau and King, 2002;Scattolini et al, 2006;Ni and Henclewood, 2007;Wahlström and Eriksson, 2010;Chalet et al, 2011;Saab and Hetet, 2013). Engine losses are split into thermodynamic and mechanical contributions.…”

Section: Internal Combustion Enginementioning

confidence: 99%

Vehicle subsystems' energy losses and model-based approach for fuel efficiency estimation towards an integrated optimisation

Cheli

Gobbi

Holjevac

2018

IJVD

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Improvement of passenger cars' energy efficiency has nowadays become crucial for automotive companies. Vehicle energy loss assessment requires experimental procedures; the process is time consuming and expensive, thus virtual methods have been increasingly employed during design process. Model-based approaches have been widely used in vehicle subsystems and components design, however current methodologies focus on specific areas while few attempts to cover the entire vehicle system have been proposed. In this paper vehicle subsystems energy losses are analysed through a comprehensive literature review, simple models are then presented to evaluate subsystems' steady-state performances and efficiency. The different modules are then coupled to simulate the entire vehicle behaviour while facing different driving scenarios and allowing to assess fuel economy and to evaluate the effect of design variations and new technologies.Reference to this paper should be made as follows: Cheli, F., Gobbi, M. and Holjevac, N. (2018) 'Vehicle subsystems' energy losses and model-based approach for fuel efficiency estimation towards an integrated optimisation', Int. J. Vehicle Design, Vol. 76, Nos. he is an Associate Professor at the Department of Mechanical Engineering. He is co-founder of the SmartMechanical Company spin-off. He is author of over 150 publications in international journals or presented at international conferences. His areas of interest cover vehicle design, optimisation of complex systems, experimental mechanics.Nikola Holjevac graduated in Mechanical Engineering in 2014 and he is currently a PhD. candidate both at Politecnico of Milano. His research activity involves vehicle design and optimisation particularly concerning vehicle powertrain.

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Section: Internal Combustion Enginementioning

confidence: 99%

Vehicle subsystems' energy losses and model-based approach for fuel efficiency estimation towards an integrated optimisation

Cheli

Gobbi

Holjevac

2018

IJVD

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The Effect of EGR Ratios and Ambient Temperatures on Diesel Combustion Characteristics in Constant Volume Combustion Chamber

Mai,

Tan,

Tran

et al. 2024

Proceedings of the International Conference on Sustainable Energy Technologies

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Application of Willans Line Method for Internal Combustion Engines Scalability towards the Design and Optimization of Eco-Innovation Solutions

Sorrentino

Mauramati

Arsie

et al. 2015

SAE Technical Paper Series

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Main aim of this paper was to exploit the well-known Willans line method in a twofold manner: indeed, beyond the usual identification of Willans line parameters to enable internal combustion engine scaling, it is also proposed to infer further information from identified parameters and correlations, particularly aiming at characterizing mechanical and frictional losses of different engine technologies. The above objectives were pursued relying on extended experimental performance data, which were gathered on different engine families, including turbo-charged Diesel and naturally aspirated gasoline engines. The matching between Willans line scaled performance and experimental ones was extensively tested, thus allowing to reliably proceed to the subsequent objective of characterizing mechanical losses on the basis of identified Willans parameters. This latter task was accomplished by comparing Willans derived losses to those estimated via the Bishop model, extensively adopted in the related literature to predict such a key performance variable. The comparisons highlight the usefulness of Willans line-based estimation of mechanical losses as a function of engine speed, thus also contributing to adding new exploitation means to a key methodology for optimal design of advanced automotive propulsion systems, in view of prospective diffusion of optimally sized and cost-effective solutions for the reduction of CO2 emissions, including hybridization devices

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Lamborghini Approach to Engine Downsizing Engine Friction Modeling

Cited by 7 publications

References 1 publication

Vehicle subsystems' energy losses and model-based approach for fuel efficiency estimation towards an integrated optimisation

Vehicle subsystems' energy losses and model-based approach for fuel efficiency estimation towards an integrated optimisation

The Effect of EGR Ratios and Ambient Temperatures on Diesel Combustion Characteristics in Constant Volume Combustion Chamber

Application of Willans Line Method for Internal Combustion Engines Scalability towards the Design and Optimization of Eco-Innovation Solutions

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