Communications - Scientific Letters of the University of Zilina 2025, 27(2):C36-C52 | DOI: 10.26552/com.C.2025.028

Mathematical Modelling of Hybrid Powertrain Systems for Improved Energy Efficiency

Oleg Lyashuk ORCID...1, *, Victor Aulin ORCID...2, Roman Rohatynskiy ORCID...1, Ivan Gevko ORCID...1, Andriy Gypka ORCID...1, Dmytro Mironov ORCID...1, Volodymyr Martyniuk ORCID...3, 4, Artur Lutsyk ORCID...1, Nadia Denysiuk ORCID...5
1 Department of Automobiles, Ternopil Ivan Puluj National Technical University, Ternopil, Ukraine
2 Department of Maintenance and Repair of Machines, Central Ukrainian National Technical University, Kirovohrad, Ukraine
3 Administration and Social Sciences Faculty, WSEI University, Lublin, Poland
4 Administrative and Financial Management Department, Lviv Polytechnic National University, Lviv, Ukraine
5 Department of Ukrainian and Foreign Languages, Ternopil Ivan Puluj National Technical University, Ternopil, Ukraine

The development and simulation of a mathematical model for a hybrid powertrain vehicle, aiming to optimize its energy efficiency and dynamic performance is presented in this study. Implemented in MATLAB/Simulink, the model captures the dynamic interactions between the hybrid system's components, including the internal combustion engine, electric motor, and battery. By conducting a full factorial experiment, the specific power of the hybrid vehicle was analyzed, revealing the critical influence of factors such as driving speed, road gradient, and battery state of charge. The proposed model demonstrated a discrepancy of 4-11% between the simulated and experimental results, confirming its adequacy for forecasting energy consumption and operational range. These findings offer valuable insights for enhancing the hybrid vehicle performance and sustainability through precise energy management strategies.

Keywords: hybrid power plant, drive, electric motor, transmission, generator, car
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The authors received no financial support for the research, authorship and/or publication of this article.

Conflicts of interest:

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Received: September 30, 2024; Accepted: February 27, 2025; Prepublished online: March 19, 2025; Published: April 1, 2025  Show citation

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Lyashuk, O., Aulin, V., Rohatynskiy, R., Gevko, I., Gypka, A., Mironov, D., ... Denysiuk, N. (2025). Mathematical Modelling of Hybrid Powertrain Systems for Improved Energy Efficiency. Communications - Scientific Letters of the University of Zilina, 27(2), C36-52. doi: 10.26552/com.C.2025.028
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