The article is devoted to the study of energy-efficient use of traction rolling stock for driving trains. It deals with the optimal driving mode and the main parameters of traction calculations. Based on the use of GPS/GLONASS satellite navigation units, a method for determining the basic resistance of cars in real time is proposed. The possibility of using the results obtained on locomotives with analog devices and no movement tracking is analyzed. The “Traction Calculations” software package in the C# programming language was modified in order to reduce the time and facilitate calculations of the locomotive traction service. In the course of the study, the equation of the main resistance of the cars of train No. 3612 was determined. On the basis of the uncoupled rolling stock, the dependences of speed, time, heating and current of traction electric motors, fuel consumption by the CHME3 locomotive of the Kharkiv-Sortirovochny locomotive depot for the transportation of cars from the Kharkiv-Sortirovochny station to Merefa station were calculated, with recommendations for the driver to use the position of the driver’s controller in order to reduce costs and fulfill the train schedule.

Анотація. У статті розглянуті питання встановлення впливу різних видів складових основного й додаткового опору, визначена необхідність отримання інформації з систем глобального позиціонування GPS/ГЛОНАСС поїзних локомотивів та її використання в тягових розрахунках, встановлена величина зносу деталей і вузлів екіпажної частини. Визначено рівняння основного опору заданого об'єкта дослідження на базі закону збереження механічної енергії та порівняльної технічної характеристики систем навігації. Ключові слова: GPS/ГЛОНАСС, тягові розрахунки, екіпажна частина, математичне моделювання, локомотив. Abctract. The article deals with global positioning systems integrated on VL11 locomotives. The scheme of operation and comparative characteristics of the accuracy of information from GPS and GLONASS systems are given. Expressions of the main resistance components of the friction forces in rolling stock bearings, rolling friction of wheels on rails, resistance forces on track irregularities, air resistance forces and sliding friction forces of wheels on rails are established. Expressions of components of additional resistance are established: resistance forces from bows, curves, resistance when starting from a place, from low temperatures and wind. The speed dependence is constructed using the specified formulas for the specified calculation parameters. The paper uses the law of conservation of mechanical energy, as the main factor takes into account all the effects on the rolling stock, the movement of the train. Shown graphically with a high-speed graph of the tracking section of the considered stage. Based on the law of conservation of mechanical energy, the real value of the main drag forces of cars on the Shebelinka-Zanki tracking section is established, the possibility of obtaining in real time is proved, and it is proposed to use it to optimize the consumption of fuel and energy resources for train traction. The paper considers the issues of establishing the actual technical parameters of the rolling stock crew by approximating (lianerization) the curve of theoretical smallpox resistance to the real one. An algorithm for searching for technical parameters of the crew part is proposed. The statement about the need to introduce mathematical modeling methods in the locomotive economy in order to establish rational traction costs, search for optimal operating modes and mass practical testing.