Parking and braking control unit integrating remote relieving function

Abstract

The invention discloses a parking and braking control unit integrating a remote relieving function. The parking and braking control unit comprises a first plug door, a second plug door, a third plug door, a pulse solenoid valve and a fourth plug door, wherein the first plug door is arranged on a pipeline and is used for communicating with a main air pipe; the second plug door is used for communicating with a braking pipe; the third plug door is used for communicating with an average pipe; the pulse solenoid valve is used for communicating with a parking brake cylinder; the fourth plug door is communicated with the pulse solenoid valve; the fourth plug door comprises an interface A1, an interface A2 and an interface A3; when the fourth plug door is opened, the interface A1 is communicated with the interface A3 and the interface A2 is separated from the interface A1; when the fourth plug door is closed, the interface A1 is disconnected from the interface A3 and the interface A2 is communicated with the interface A1.

Description

technical field [0001] The invention relates to a parking brake control unit of a locomotive. Background technique [0002] When the locomotive is in the no-fire loopback mode, it usually needs other vehicles to drag it. At this time, the operator needs to trigger the parking relief application button on the console to control the pulse solenoid valve to be in the parking relief state. If the operator misoperates, the pulse is not ensured. If the solenoid valve is in the required setting state, there is no pressure input in the parking brake pipe, and its relief cannot be guaranteed, so that the locomotive cannot be returned safely without fire. In the prior art, another situation that usually occurs is that the pulse solenoid valve fails or the pulse solenoid valve is in a state of no power supply, and the operator cannot use electrical signals to control the state of the pulse solenoid valve, so that the locomotive cannot perform fire-free send back. Contents of the inv...

AI Technical Summary

Problems solved by technology

[0002] When the locomotive is in the no-fire loopback mode, it usually needs other vehicles to drag it. At this time, the operator needs to trigger the parking relief application button on the console to control the pulse solenoid valve to be in the parking relief state. If the operator misoperates, the pulse is not ensured. If the solenoid valve is in the required setting state, there is no pressure input in the parking brake pipe, and its relief cannot be guaranteed, so that the locomotive cannot be returned safely without fire

In the prior art, another situation that usually occurs is that the pulse solenoid valve fails or the pulse solenoid valve is in a state of no power supply, and the operator cannot use electrical signals to control the state of the pulse solenoid valve, so that the locomotive cannot perform fire-free loopback

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