Article 3 #4' 2025

© Lubomyr Kraynyk, Doctor of Technical Sciences, Professor, ORCID: 0000-0002-0524-9126,
e-mail: l.kraynyk@gmail.com
(JSC “Ukrautobusprom”)
© Heorhii Khudaverdian, Postgraduate Student,
ORCID: 0000-0001-5257-458,
e-mail: georgiu.kh@gmail.com
(Lviv National Environmental University)
FORMATION OF THE TRANSMISSION GEAR RANGE OF A UNIVERSAL WHEEL TRACTION VEHICLE
DOI: 10.33868/0365-8392-2025-4-285-16-23
Abstract. The method of determining the transmission mode of the universal wheeled traction and transport vehicle – UWTTV (Unimog/Autotrak type) of category N1/T1 has been developed from the conditions of both transport functions on highways and technological functions in off-road conditions, including mechanical tillage. Using the aggregate base of a heavy jeep developed by JSC “Ukrautobusprom”, class Oshkosh L-ATV, the avant-project of UWTTV TUR KT 041 with a semi-hooded cabin layout for 3 people, a cargo platform for 1.2 tons (or a building for technological equipment) and a system of trailed / mounted equipment has been developed. From the conditions of maximum unification of power drive units– engine, basic mechanical gearbox and main gears, the method of calculating the gear ratio, which reduces the transfer case transmission for performing technological operations, has been developed. For the most energy-intensive of them – plowing of agricultural land with a plow – a calculation method is presented with an orientation to a certain class of traction on the hook (here 1.4 t) in the conditions of a standardized agricultural background for wheeled tractors. The adequacy of the method is assessed by comparing the results of simulation modeling of the plowing process in the MATLAB Simulink software environment and experimental data using the example of a T 150K wheeled tractor.
Keywords: car, wheeled tractor, off-road, asphalt concrete, freight transportation, mechanical tillage, transmission, transmission range.
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