Lysyi A. Effectiveness increase of operation of road trains by control their operating conditions

The dissertation is devoted to solving the efficient operation of trucks and tractors Volvo and DAF by correcting the frequency according to actual technical condition. The theory of qualitative simulation and select alternative solutions for complex indicators of technical level of truck is improved on the basis of system approach, it is defined the boundary of the region of existence of operating properties (efficiency, dynamism, reliability) of truck and was found in this area, the best set of values for the quality indicators of the main components (subsystems, units, mechanisms, elements etc) optimization methods at the modeling stage. The General approach is proposed on the basis of a comprehensive analysis, this are method reflect the technical level of road trains and the graphic-analytical method of comparing its performance, which ensures functional and structural integrity, enhanced the objectivity of the physical reflection and the informativeness of performance the quality of its main parts into a unified system the basis of internal (structural) and external (functional) properties. Improved maintenance system of the main parts of road trains Volvo, DAF on their actual technical condition, which enabled to increase the level of traffic safety. The algorith development of rational modes of vehicle maintenance according to the statistics-based sample that allowed us to plan the unit costs of their operation, norms of consumption of spare parts and the cost of transportation. Installed that the rational periodicity of maintenance depending on the operating conditions: road trains Volvo by Ukraine-Europe roads Service X - 50-55 thousand km; Service Y - 100-110 thousand km; road trains DAF by Ukraine roads Service X - every 30-35 thousand km, Service Y - 90-105 thousand km.