A rail vehicle and its adaptive control system and method for constant pressure of train tubes

Abstract

The present invention discloses a control method for self-adaptive train tube pressurization. The control method comprises: in a static state, determining whether a traction engine starts to perform brake releasing; if yes, executing the next step; determining whether the rates of change of the pressure of a train tube are within the preset rate of change, if yes, executing the next step; determining the pressurization according to the pressure of the train tube; in the running state, determining whether braking is applied to the traction engine; if yes, executing the next step; and performingbraking on the whole vehicle according to the linear relationship between the decelerations corresponding to different pressures after pressurization and the depressurization amounts of the train tube. The present invention also provides a control system for self-adaptive train tube pressurization and a rail vehicle provided with the same. The control method can automatically determine the pressurization state of the train tube, and control the braking parameters of a subway vehicle correspondingly according to the train tube pressurization state of the railway vehicle, and the depressurization rates and the decompression amounts of the train tube.

Description

technical field [0001] The invention relates to the technical field of locomotive engineering, in particular to a rail vehicle and its control system and method for adaptive train tube constant pressure. Background technique [0002] At present, when the urban rail vehicles are assembled and hung on the railway, the braking control of the subway vehicles is based on the constant pressure of the train pipe of the railway vehicle at 500kPa. As we all know, the constant pressure of the train pipe of the railway vehicle is divided into two types: kind. If the constant pressure of the train pipe of the railway vehicle is 600kPa, according to the previous control method, when the decompression of the train is less than 100kPa, the railway vehicle will not apply the brake when the decompression of the train is less than 100kPa. Rate is only 0.32m / s 2 , the braking force is too small. When the constant pressure of the train pipe is 600kPa, it cannot be transported by railway acco...

AI Technical Summary

Problems solved by technology

When the constant pressure of the train tube is 600kPa, it cannot be transported by railway according to the previous control method

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