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Title of the article ANALYTICAL AND NUMERICAL CALCULATIONS OF THE GEARSHIFT PROCESS DYNAMICS OF ELECTRIC VEHICLE POWER UNIT WITH A SHAFT GEARBOX
Authors

PODDUBKO Sergey N., Ph. D. in Eng., Assoc. Prof., Director General, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

ISHIN Nikolay N., D. Sc. in Eng., Assoc. Prof., Chief of the R&D Center “Mining Machinery”, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

GOMAN Arkadiy M., Ph. D. in Eng., Assoc. Prof., Head of the Department of Dynamic Analysis and Vibration-based Diagnostics of Machines of the R&D Center “Mining Machinery”, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

SKOROKHODOV Andrey S., Ph. D. in Eng., Assoc. Prof., Leading Researcher of the Department of Dynamic Analysis and Vibration-based Diagnostics of Machines of the R&D Center “Mining Machinery”, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

SHPORTKO Vladimir V., M. Sc. in Phys. and Math., Researcher of the Department of Dynamic Analysis and Vibration-based Diagnostics of Machines of the R&D Center “Mining Machinery”, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.
In the section DYNAMICS, DURABILITY OF VEHICLES AND STRUCTURES
Year 2024
Issue 3(68)
Pages 43–52
Type of article RAR
Index UDK 629.33; 621.3
DOI https://doi.org/10.46864/1995-0470-2024-3-68-43-52
Abstract The article is devoted to the study of dynamic processes in the power unit of electric vehicle when shifting gears in a two-shaft gearbox by means of a cone synchronizer. A two-mass dynamic model is used to obtain analytical dependences. This model of the power unit makes it possible to obtain a qualitative idea and a quantitative assessment of the electric vehicle gearshift process, to select parameters of the laws of engine torque and synchronizer friction moment change. For a more precise description of vibrations in a power unit, taking into account its elastic properties, a three-mass dynamic model is considered. An example of calculating the time of shifting from low gear to top one for the MAZ-4381EE delivery electric truck is given. The studies conducted have shown that the vibrational processes occurring in the power unit of electric vehicle do not significantly affect the dynamic loading of its elements.
Keywords electric vehicle, power unit, shaft gearbox, dynamic model, cone synchronizer, electric motor mechanical characteristic, gearshift time, gearshift algorithm
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