Methodology for Comparative Evaluation of Performance of Improved Hydraulic Power Packs of Heavy-Duty Vehicle Transmissions

This paper presents the developed methodology for assessing the performance of vehicle transmission units (e.g., advanced torque converters) used in the creation of vehicles designed for lifting, moving and lowering loads, moving on roads of categories I, II, III and IV together with the load, without losing cross-country passability. One of the main directions considered in the article is to improve the maneuverability of mobile ground missile systems (MGMS) and, above all, their autonomous launchers (ALs). Traditional principles and methods do not allow to achieve a significant increase in mobility of ALs, as their maximum speed on roads of I-II categories does not exceed 40 km/h. In modern conditions, the transportation and installation equipment of rocket systems (TIE RC) are subject to high requirements for their mobility, cross-country capability and reliability. The TIE RC should perform their mission in any climatic conditions at any time of day and work in a wide range of soil and ground conditions, including overwatered, waterlogged soils with low load-bearing capacity. One of the areas of research in this topic is new combined types of transmission with improved performance characteristics and ways of working.