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A modern solution to the problem of improving the efficiency of the traction rolling stock maintenance and repair processes based on the use of new information technologies is the transition to a locomotives predictive repair promising system. The key element of the predictive repair system in the issue of operational assessment and management of the locomotives technical condition are onboard microprocessor control systems with built-in diagnostic, monitoring and monitoring subsystems. The onboard microprocessor control systems have the ability to carry out continuous or discrete measurement, registration, transmission and accumulation the values of large package analog and discrete locomotive equipment parameters. The functionality of the onboard microprocessor control systems based on information technologies makes them an exceptionally effective means of efficiently organizing maintenance and repair impacts on the locomotive park in order to ensure specified operational reliability and performance indicators.

The article discusses the approach to generalized evaluation of technical condition of the diesel locomotive power plant functional subsystems based on the reduction of private parameters extracted by results of the analysis graph model to one-dimensional time function with use of mathematical expression of a nonlinear medium. Results of generalized evaluation of technical condition of the power plant fuel system are presents.

The article discusses the approach to evaluation of technical condition of the diesel locomotive power plant fuel system as a part of an integrated microprocessor control systems. Presents an approach of generalized evaluation of technical condition of the power plant fuel system. By results of the analysis of a fuel system graph model set of control parameters is selected, the algorithm allowing to establish the reasons of controlled parameters output of admissible limits is developed.

The article discusses the approach to operational evaluation of technical condition of the diesel locomotive power plant functional subsystems as a part of an integrated microprocessor control systems. Presents an approach to operational evaluation of technical condition of a fuel system. By results of the analysis of a fuel system graph model set of control parameters is selected, the algorithm allowing to establish the reasons of controlled parameters output of admissible limits is developed.

The article discusses the question of the innovation freight cars implementation in the context of their influence on forming and optimization of the locomotive park efficiency use indicators. Presents the main criteria of the innovation freight cars providing significant technical and economic effect for the traction rolling stock. Allocated the key factors influencing forming the criterion change functions of the cargo locomotives indicators of use efficiency. On the basis of the structured influence factors analysis can be developed the applied strategies of the locomotive park operational efficiency use.