3_2020_sen_1

Title of the article

APPLICATION OF GEARBOXES IN POWER DRIVES OF ELECTRIC VEHICLES
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, 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., Leading Researcher of the Department of Dynamic Analysis and Vibration-based Diagnostics of Machines, 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.

SHABANOV Pavel A., Chief Designer for Automotive Technology – Head of the Chief Designer’s Department, JSC “Minsk Automobile Plant” – managing company of “BELAVTOMAZ” holding, 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 MECHANICS OF MOBILE MACHINES
Year 2020 Issue 3 Pages 5–11
Type of article RAR Index UDK 629.33; 621.3 Index BBK  
DOI https://doi.org/10.46864/1995-0470-2020-3-52-5-11
Abstract One of the disadvantages of electric vehicles is the limited driving range on a single charge, which depends significantly on the operating conditions. Until now, in electromechanical power units of transport vehicles, a single-stage gear reducer is most often used. An attempt to increase the driving range on a single charge of electric trucks due to an increase of the traction batteries capacity leads to a significant reduction in their load capacity. In this paper, the problem of improving the energy efficiency of electric vehicles is solved by using multistage gearboxes in power units. They make it possible to adapt the power unit to a joint operation in the high-efficiency zone of the traction electric motor and inverter, which ensures the energy consumption reduction of electric vehicles. An example of calculating the gear ratios of a two-stage gearbox for the experimental delivery electric truck MAZ-4381EE and different variants of the gearbox kinematic schemes are given. Furthermore, the use of а two-stage gearbox makes it possible to implement two parameters specified by the technical requirements that ensure the effective operation of the electric vehicle: the dynamic factor, characterizing its traction-speed properties, and the maximum speed.
Keywords

electric truck, driving range on a single charge, traction electric motor, gearbox, gear ratio
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