Hladchenko V. Selection and Justification of Parameters for the Power Unit of Converted Electric Vehicles of Category M1

Ecological, economic, and transport problems in cities prompt humanity to seek new types of wheeled vehicles and methods of organizing urban transportation. Currently, the use of electric and hybrid cars in developed countries is gradually increasing. The production and sale of electric vehicles are relevant, and there is potential consumer demand for such products. The issue of disposing of existing cars with internal combustion engines, considering their large number worldwide, creates a significant societal problem. One way to address this is to convert them into electric wheeled vehicles. Often, such conversions are carried out by owners of old serial cars with internal combustion engines without any research on their feasibility. The absence of recommendations for selecting functional elements of electric wheeled vehicles and a methodology for calculating the operational properties of converted electric wheeled vehicles complicates this process. The purpose of this study is to select and justify the parameters of the power unit of converted electric wheeled vehicles of category M1 through the rational choice of their design parameters. The obtained scientific results form a single research complex (concept, principles, criteria, methods, and mathematical models), the proposed methodology for selecting the types of elements of the "Power Battery - Traction Electric Motor - Transmission" system of the converted electric wheeled vehicle according to the driving cycle. Traction-speed properties and energy efficiency indicators of the converted electric wheeled vehicle were determined. Keywords: electric vehicle, power unit, traction electric motor, electric drive, traction battery, electricity consumption, traction-speed properties, gear ratio, acceleration, motion equation, vehicle, electric energy, efficiency, vehicle power units, driving cycle.