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STUDY OF ENERGY CONSUMPTION BY TROLLEYBUSES MOVING UNDER REGULATED TRAFFIC CONDITIONS
(2024) Budnychenko, Igor; Dembitskyi, Valerii; Podpisnov, Vladyslav; Dykyi, Vladyslav
At the current stage of development of electric transport, the task of studying the energy efficiency of such vehicles is still relevant. Various models of electricity consumption developed and proposed by scientists still do not reflect the actual energy consumption of vehicles. A particular problem in such studies is the need to take into account the amount of electricity recovered by the engine. The analysis of the literature shows a variety of approaches to modeling electricity consumption that take into account the actual operating conditions of vehicles. In this paper, we have studied the consumption of electric energy by trolleybuses moving along established routes in Vinnytsia. Based on the results of the studies, the total amount of energy consumed, the amount of energy consumed by the traction electric drive, the total amount of recovered energy, and the amount of recovered energy returned to the contact network were determined. The data obtained were processed and it was determined that the difference between the amount of electric energy recovered by the vehicle traction motor and the total amount of recovered electric energy sent to the contact network is 6...14 %, while the amount of electric energy recovered by the vehicle traction motor ranges from 7 to 27 % of the electric energy consumed by the electric drive. The research results obtained indicate significant losses of part of the electrical energy recovered by the engine, as well as a significant variation in the amount of recovered energy, depending on the route. Further research should be aimed at improving mathematical models of electric energy consumption, taking into account the specific operating conditions of vehicles.
Construction of the Geometrical Models of a Multiple-Factor Optimization of the Technical and Operating Parameters of the Trolleybuses with an Autonomous Move Margin
(2022) Serhii, Pustiulha; Volodymyr, Samchuk; Valerii, Dembitsky; Viktor, Samostian; Valentyn, Prydiuk
While introducing into a system of passenger traffic the ecologically clean vehicles, namely the electric buses, a task of providing them with a rational move margin is actual. This problem is especially acute while using the trolleybuses with an autonomous move at urban and suburban routes. A constructed multiple-factor model and a proposed algorithm of finding the main parameters allow forming the offers concerning a constructive providing of an additional equipment process with the means of autonomous move. Based on a visual presentation of the multidimensional spaces at Radishchev drawing an effective way is offered of a geometrical interpretation of mutual influence of the optimization factors set on the operating characteristics of the additionally equipped vehicles.

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