Instruction converting device for loopback rescue of D-series high-speed train

Abstract

The invention discloses an instruction converting device for the loopback rescue of a D-series high-speed train. The instruction converting device comprises an electronic control unit, wherein a pressure sensor is connected to an input end of the electronic control unit, an electric pneumatic switching valve is connected to an output end of the electronic control unit and is connected with a totalwind pipe and a relay valve, respectively, the relay valve is connected with a mode switching valve and the total wind pipe, respectively, and the mode switching valve is connected with a train pipeand the total wind pipe, respectively; an emergent exhaust valve is connected with the total wind pipe and the train pipe, respectively; and an air cylinder is connected to the train pipe, a pressuresensor is connected to the air cylinder and is used for collecting the pressure of the train pipe and inputting a pressure signal to the electronic control unit. According to the instruction converting device, the mutual function between a single-pipe braking D-series high-speed train and a double-pipe braking D-series high-speed train is realized; and an interface of the device is simple, and theintegration level of the device high.

Description

technical field [0001] The invention relates to a braking control system in rail transit, in particular to a command conversion device for returning and rescuing an EMU. Background technique [0002] There are two different air brake control methods for domestic EMUs: one is a single-pipe brake system, that is, a straight-through electro-pneumatic brake control system in which the air brake is controlled by the air supply of a single main air pipe; Regulatory braking system, that is, in addition to the straight-through electropneumatic braking control system with a single main air duct air supply control, it can also realize the automatic air braking control system through the train tube to achieve pure air braking. [0003] In the case of no-fire return, failure rescue, etc., the EMU needs to be returned or rescued by the locomotive or other EMUs (hereinafter referred to as "rescued"); referred to as rescue). [0004] The patent CN102975738B realizes the mutual rescue of ...

AI Technical Summary

Problems solved by technology

[0005] (1) The functions of rescue and rescued are realized through the cut-off plug in the operating device. Since the device is installed under the vehicle, it will be inconvenient to operate when the vehicle on the line is rescued.

[0006] (2) When being rescued, when the locomotive or rescue EMU triggers an emergency, the EMU cannot apply emergency braking synchronously; when the EMU triggers an emergency, the locomotive or rescue EMU cannot simultaneously apply emergency braking

[0007] (3) Rescue: When the rescued EMU triggers an emergency, the EMU cannot trigger the emergency brake synchronously

[0008] (4) The emergency exhaust valve is controlled by the electronic control unit, and the control of the emergency exhaust valve cannot be realized when the electronic control unit fails

[0009] (5) Emergency braking cannot be triggered when the train pipe ruptures and other working conditions cannot be triggered

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