METHOD FOR FUZZY CONTROL OVER MOVEMENT OF RAILROAD TRAIN WITH POSSIBLE SMOOTH CONTROL OVER TRACTION Russian patent published in 2007 - IPC G05B13/02 B60L15/20 

FIELD: transportation, mainly for use in systems for controlling movement of railroad trains.

SUBSTANCE: method includes measuring traversed path, current speed and time, passed since station departure. Also performed are prediction of arrival time under conditions of maintaining current speed and computation of path, which train passes before reducing speed to value of expected limit. On basis of measurements and prediction, expected time deviation from schedule is determined, as well as distance from speed reduction beginning to end of station to station block. With usage of nonlinear elements, fuzzy estimate of train movement parameters, represented in terms of linguistic variables, is formed. Current estimate is used for producing degree of authenticity of premises of linguistic rules for controlling the train. Computation of train acceleration is performed by means of fuzzy output procedure, which considers outcome of each rule depending on degree of authenticity of its premise. Due to introduction of nonlinear elements, smooth change of movement modes is ensured, while parameters of nonlinear elements predetermine capacity for flexible adjustment of control system.

EFFECT: simplified maintenance and modernization of controlling system, and also removal of oscillating movement modes.

6 dwg, 2 tbl