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Item type:Наукова стаття, Modeling and Analysis of Electric Bus Energy Consumption Considering Topography and Driving Modes(2026) Dembitskyi, Valerii; Samostian, Viktor; Kotenko, Viktoria; Sitovsky, OlegThis article explores current issues related to the use of electric buses in urban and suburban passenger transportation systems. The importance of a rational selection of traction battery parameters is justified, taking into account the required driving range and the influence of factors that reduce battery longevity and energy efficiency. A review of recent research confirms that electric energy consumption depends on operating conditions, driving modes, driver characteristics, road and climate conditions, and the design features of the vehicle. A methodology for calculating energy consumption is proposed based on the principles of vehicle motion theory, with consideration of dynamic driving conditions, road gradients, and regenerative braking efficiency. The object of study is the Solaris Urbino electric LE 8.9 electric bus, which was simulated along a real-world route (“Mlyniv – Lutsk”). Based on the obtained results, an analysis of the influence of various factors on energy consumption was conducted. The results showed that the longitudinal road profile has a minor effect under flat terrain conditions, whereas regenerative braking significantly reduces overall energy consumption. The results were validated through comparison with empirical data, confirming the adequacy of the proposed model. The presented approach can be used for electric transport planning, energy consumption optimization, and the development of requirements for charging infrastructure.Item type:Наукова стаття, Comparative Estimation of Maneuverability of the Multi-Track Road Trains of Different Layout Schemes(2025) Sakhno, Volodymyr; Murovanyi, Igor; Razboinikov, Oleksandr; Palamarchyk, Olekcii; Dembitskyi, ValeriiToday, in the constructions of multi-link road trains, two main layout schemes are used, as a rule - trailer (car + n trailers) and semi-trailer (tractor car + n semi-trailers). Previously conducted studies established that the maneuverability indicators of the road trains can be determined on wheels rigid in the lateral direction, that is, according to kinematic models, which are based on the angles of assembly of the road train links. These angles are defined for both a three-link trailer and a semi-trailer vehicle train, for different locations of the extended link. For the semi-trailer road trains, the requirements for maneuverability are not met, and therefore the trailer links must be equipped with more or less complex control systems. With a direct control drive on the front axles of the second and third semi-trailers, when turning at 90º and 180º, only the first layout scheme satisfies the requirements for maneuverability.