Modernization of the cooling system in tractors with gas engines

Abstract

With an increase in the power/weight ratio of vehicles in cities and towns, the thermal loads of many functional units increase significantly. This requires the organization of the removal of excess heat into the environment, since the violation of the proper thermal regime in individual functional units prevents the realization of the potential operational properties of the entire vehicle up to failure. At the same time, the variety of operating conditions for vehicles, causing a change in a wide range of factors of the working environment, especially road and climatic ones, creates a difficult, both in practical and theoretical terms, problem of ensuring the required thermal regime for functional units. In this regard, the paper presents a consistent development of the theory of hydrothermodynamic properties of functional units based on the principles of constructing the operational properties of vehicles. The problems determining the further search and scientific substantiation of meters and indicators for assessing the efficiency of cooling systems, as well as the development of methods, tools and equipment for calculating and studying these systems are considered. At the same time, the work presents the improvement of the working process and designs of gas engines of tractors aimed at increasing reliability through the use of new production technologies. In conclusion, the definition of scientifically grounded methods and practical solutions for improving the performance of cooling systems is given, which has an important scientific and economic significance for increasing the operational properties of agricultural tractors, substantiating the current importance.

Coolant Temperature Indicators for Batteries in Electric Tractors and Vehicles

“…При слишком низкой температуре аккумулятор, наоборот, следует разогревать. Например, аккумуляторы нельзя заряжать, если температура ниже 0°C [3]. В некоторых моделях для достижения высокой производительности такие автомобильные компании, как Tesla, KIA, BMW, предлагают предварительно нагревать аккумулятор, разгоняя скорость от 0 до 100 км/ч менее, чем за 2 секунды.…”

Digital analogue of an agricultural tractor

“…This allows to detect the beginning of defects and deformations before they become noticeable to the mechanic or repair operator. Accordingly, maintenance or repairs will be carried out in advance, reducing the cost of operating the equipment and increasing its capacity [10].…”