Object of research: process of creation and idealized analysis of functional properties of brake assemblies of automatic telephone exchange, which one determines a problem of system approach at mining these problems. Purpose of research: creation of the theory and technique of system designing of brake assemblies of vehicles of categories М1, М2, М3, N1, N2, N3, О3, О4, permitting considerably to expand capabilities of perfecting of control modes of output parameters of a brake assembly of automatic telephone exchange, by usage of methods of systems analysis. Method of research: At the analysis of necessity of application BFR, control modes of braking forces, creation of the bases of the theory of designing BFR the methods of systems analysis were used. At a formulation and purposes of research the hypothetical method was used, at the analysis of activities of the previous explorers - historical, at creation of the design concepts - way of conventional sign, at creation of mathematical models - po tu lational method, ways of ranking and formalizing, analytical and random - statistical methods, for endorsement of justice of designed models - experimental methods. Equipment: fixtures for research static and dynamic characteristics, computer equipment. Theoretical and practical outcomes: Practical value. The main scientific rules, mining and guideline utilized in the: educational process of opening-up of the engineers and engineers - designers on specialties 7.090215" Automobiles and automobile facilities ", 7.090211" Wheel and full-track transportation facilities ";4 modifications BFR in a design of buses a MANHOLE (s. Lvov); 2 modifications РТС in a design of trolley buses ЗИУ (Engels by the Saratov province); 3 modifications BFR in designs of automobiles КрАЗ (. Kremenchug); 2 modifications BFR in a design of buses "Alterna" (. Likino-Dulovo, Russia); 1 modifications BFR in a design of a semi-trailer СЗАП (. Stavropol, Russia); BFR with the characteristic of a compensator of pressure adopted to an intrusi on in a design of a brake assembly of the urban bus of effecting of an auto repair plant №126 (Kharkov);2 modifications of a level regulator forgeries (LRF) in designs of the pneumosuspension of buses ЛАЗ, ЛиАЗ, trolley buses ЗИУ, semi-trailers СЗАП.Thus by a modular plant (Volchansk) are inserted in series production: 12 modifications BFR with the characteristic of a radial type; 2 modifications LRF; 4 modifications of braking cranes with parallel sections are adopted to an intrusion in series production. Value for the theory. In activity the theory of system approach is designed at research and designing of braking control of the automobile. The scientifically reasonable mining in theory of designing of brake assemblies of automatic telephone exchange are obtained new, which one provide the solution of a considerable applied(economic) problem. And as the new scientifically reasonable idealized and experimental outcomes are obtain,which one in aggregate are considerable achievement for development of the the ory designing of brake assemblies being constituent of the theory of the automobile. Novelty of new implementation: The theory of system for designing of a brake assembly of the automobile with BFR the first time is designed, the conforming yardsticks of an estimation of its functional properties are designed; area of possible control modes of braking forces on automobiles of categories М1, М2, N1, N2, N3, O3, O4 for the first time is theoretically justified; the theory of synthesis of the most rational output characteristic BFR for automobiles of these categories for the first time is designed; necessity of sharing BFR and ABS for the first time is theoretically demonstrated; the theory of creation of brake assemblies of automobiles, as loop systems of automatic control is advanced; the dynamic model of the drum brake is advanced; the theory of designing BFR with the characteristics of the terminator and compensator of pressure in the pneumatic braking drive for the first time is designed; the probabilisti c model of the drum brake with floating chocks is advanced; Have received further deelopment of model of ideal and actual distribution of normal reactions on axes two and three-axis of the bus; a system complex of yardsticks of an estimation of necessity of application BFR for the first time is offered; fundamental theory of stability augmentation of an output characteristic BFR against self-oscillations in a nem for the first time are designed. Degree of application: Designed BFR with the characteristic of a radial type and LRF are inserted in series production on a modular plant (Volchansk) and will be used in designs of brake assemblies аutomobiles КрАЗ, buses ЛАЗ, ЛиАЗ, Альтерна, trolley buses ЗИУ, semi-trailers СЗАП. Area of usage: automobile transport.
