The analysis of the vehicle acceleration process is a current topic based on the aspects related to the general characteristics of the car, its parameters, design, drive unit performance, and the influence of external factors. Therfore in the article, the authors assessed the dynamic and energy parameters of the car motion, in which the intensity of acceleration of the car with different intensities was examined. Acceleration was carried out in two variants, the first for a normal internal combustion engine and the second for the same engine but additionally equipped with a short-term boost system. In this way, it influences the increase in power and energy in the car drive system, changing its acceleration intensity. Variable car acceleration intensity was obtained in the range from 0.12 to 1.37 m/s2 , and energy consumption at the level of 0.4 to 1.2 MJ in the distance of 1/4 mile. The article proposes a combination of energy parameters and engine power in order to assess the acceleration dynamics, for this purpose, the specific energy consumption of the car was determined, ranging from 0.35 to 2.0 J/(kg∙m), which was related to the engine power, denoting it with the dynamics index. The study focuses on the assessment of the relationship between the specific energy consumption and acceleration of passenger cars in the available powertrain system using a new dynamics index. The proposed dynamics index combines the energy and dynamic parameters of the car to be able to objectively quantify the acceleration process.
BERRY, M. The effect of driving style and vehicle perfor-mance on the real-world fuel consumption of US Light-Duty Vehicles. Massachusetts Institute of Technology. 2010.
FERREIRA, H., RODRIGUES, C.M., PINHO, C. Impact of road geometry on vehicle energy consumption and CO2 emissions: An energy-efficiency rating methodology, Ener-gies. 2020, 13(1), 119.
FONTARAS, G., FRANCO, V., DILARA, P. et al. Devel-opment and review of Euro 5 passenger car emission factors based on experimental results over various driving cycles. Science of The Total Environment. 2014, 468-469, 1034-1042.
MAMALA, J. GRABA, M. PRAZNOWSKI, K. et al. Con-trol of the effective pressure in the cylinder of a Spark-Ignition engine by electromagnetic valve actuator. SAE Technical Paper 2019-01-1201. 2019.
PRAŻNOWSKI, K., MAMALA, J., BIENIEK, A. Potential application of power output control in the powertrain of a passenger car. IOP Conference Series: Materials Science and Engineering. 2018, 421(2), 1-10.
RILL, G. Road Vehicle Dynamics: Fundamentals and Mod-eling – 1st Edition. CRC Press. 2011. (accessed on 11.06.2021).
GILLESPIE, T.D. Fundamentals of vehicle dynamics. SAE International. Warrendale 1992.
GRABA, M., MAMALA, J., BIENIEK, A. et al. Impact of the acceleration intensity of a passenger car in a road test on energy consumption. Energy. 2021, 226, 120429.
KROPIWNICKI, J., FURMANEK, M. Analysis of the regenerative braking process for the urban traffic conditions, Combustion Engines. 2019, 178(3), 203-207.
DRABIK, D., MAMALA, J., ŚMIEJA, M. et al. Possibility of reducing CO2 emissions from internal combustion engines. E3S Web of Conferences. International Conference Energy, Environment and Material Systems. 2017, 19, 1-4.
HU, B., TURNER, J., AKEHURST, S. et al. Observations on and potential trends for mechanically supercharging a downsized passenger car engine: a review. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. 2016, 231(4), 435-456.
KUSZTELAN, A., YAO, Y.F., MARCHANT, D.R. A Review of novel turbocharger concepts for enhancements in energy efficiency. The International Journal of Thermal & Environmental Engineering. 2011, 2(2), 75-82.
LEE, J., NELSON, D.J., LOHSE-BUSCH, H. Vehicle iner-tia impact on fuel consumption of conventional and hybrid electric vehicles using acceleration and coast driving strategy. SAE Technical Paper 2009-01-1322. 2009.
MELDOLESI, R., BADAIN, N. Scuderi split cycle engine: air hybrid vehicle powertrain simulation study. SAE Technical Paper 2012-01-1013. 2012.
MERKISZ, J., PIELECHA, J., RADZIMIRSKI, S. New Trends in Emission Control in the European Union. Springer International Publishing. Cham 2014.
MYSŁOWSKI, J. Doładowanie silników [Supercharging of internal combustion engines]. Wydawnictwa Komunikacji i Łączności. Warszawa 2016.
Nithesh, N. P. S, Effect of splitters in recirculation channels on performance of turbocharger compressors used in gasoline engines – a CFD study. International Journal of Automotive and Mechanical Engineering. 2019, 16(1), 6214-6229.
SIVARAMAN, M., AAKASH, A., BHARATHIRAJA, B. et al. Design and performance analysis on E-Tronic turbo-charger to eliminate turbo lag. International Journal of Pure and Applied Mathematics. 2018, 119(12), 15687-15700.
Turner, J.W.G. Popplewell, A. Marshall, D.J. et al. SuperGen on Ultraboost: Variable-Speed Centrifugal Supercharging as an Enabling Technology for Extreme Engine Downsizing. SAE International Journal of Engines. 2015, 8(4), 1602-1615.
WILLIAMS, A., BAKER, A., GARNER, C. Turbo-discharging: predicted improvements in engine fuel economy and performance. SAE Technical Paper 2011-01-0371. 2011.
BOZZA, F., DE BELLIS, V., MARELLI, S. et al. 1D simu-lation and experimental analysis of a turbocharger compressor for automotive engines under unsteady flow conditions. SAE International Journal of Engines. 2011, 4(1), 1365-1384.
KOŁODZIEJ, S., LIGUS, G., MAMALA, J. et al. Analysis of air flow velocity distribution in the intake system of an SI engine, Combustion Engines. 2017, 169(2), 152-157.
BIENIEK, A., GRABA, M., HENNEK, K. et al. Analysis of fuel consumption of a spark ignition engine in the conditions of a variable load. MATEC Web of Conferences. 2017, 117, 1-6.
MAMALA, J., BROL, S., JANTOS, J. The estimation of the engine power with use of an accelerometer. SAE Technical Paper 2010-01-0929. 2010.
KIM, E., CHOI, E. Estimates of critical values of aggressive acceleration from a viewpoint of fuel consumption and emissions. Transportation Research Board 92nd Annual Meeting. Washington 2013.
PIELECHA, I., PIELECHA, J. Simulation analysis of electric vehicles energy consumption in driving tests, Eksploatacja i Niezawodnosc – Maintenance and Reliability. 2020, 22(1), 130-137.
Rover Jaguar Land, Direct injection of gas into a turbine volute, 2016.