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A brake control system for a vehicle

A braking control and service braking technology, applied in the field of vehicle braking control system, can solve problems such as vehicle running quality degradation and damage to vehicle structure, so as to avoid braking failure, realize automation, and improve reliability and safety. Effect

Active Publication Date: 2017-10-24
CRRC QIQIHAR ROLLING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Scratches will cause a decrease in the running quality of the vehicle, damage the structure of the vehicle, and in severe cases lead to running accidents

Method used

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  • A brake control system for a vehicle
  • A brake control system for a vehicle
  • A brake control system for a vehicle

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0057] The operation of the action valve can be controlled by electrical signals, or can be directly controlled by gas pressure. A specific implementation of the action valve is given below, see the following description for details.

[0058] In a specific embodiment, the action valve has a valve body and a valve core, the valve core is arranged inside the valve body, the valve body has a first valve port 33b and a fourth valve port 34c, and the first valve port 33b passes through the pipeline It communicates with the pressure chamber of the spring brake cylinder, and the fourth valve port 34c communicates with the external low-pressure area. The valve body also has two control ports, which respectively communicate with the pressure chamber of the train pipe 4 and the brake cylinder 1. When a preset value and the air pressure in the pressure chamber of the brake cylinder 1 are lower than a second preset value, the first valve port 33b communicates with the fourth valve port 34c...

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PUM

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Abstract

The invention discloses a brake control system of a vehicle. The brake control system of the vehicle comprises a driving brake control mechanism and a parking brake control system. The driving brake control mechanism comprises a control valve, an air reservoir and a brake cylinder. The parking brake control system comprises a spring brake cylinder, a check valve and an operating valve which is arranged with the check valve in parallel. The check valve is arranged in a communication pipeline of a pressure cavity of a train pipe and the spring brake cylinder. When the air pressure in the train pipe is smaller than a first preset value and the air pressure of the pressure cavity of the brake cylinder is smaller than a second preset value, the inner passages of the operating valve communicate automatically, the spring brake cylinder is communicated to an external low-pressure area through the inner passages of the operating valve, and gas in the spring brake cylinder is discharged. According to the brake control system, a cock component is not needed, braking and braking relieving of the spring brake cylinder are realized automatically depending on the air pressure of all the operating air channels totally, brake fade and the phenomenon that vehicle wheels are worn driving on a brake condition caused by the leakage operation and misoperation of an operator are avoided, the reliability and security of vehicle braking are improved, and automatic vehicle control can be achieved.

Description

technical field [0001] The invention relates to the technical field of vehicle brake control, in particular to a vehicle brake control system. Background technique [0002] The braking devices of railway vehicles include service brakes and parking brakes. The service brake is realized by automatically controlling the brake machine, and the parking brake is generally realized by manual means. [0003] Please refer to figure 1 , figure 1 It is a structural block diagram of an automatic air brake in the prior art. [0004] Among them, the main components of the automatic control brake include a brake cylinder 1', a control valve 2', and an air storage cylinder 3'. The braking force of the brake cylinder 1' comes from the train pipe 4', and the control valve 2' is set in On the pipelines of the moving cylinder 1', the air storage cylinder 3' and the train pipe 4', the three are connected or disconnected through the inner channel of the control valve 2'. The main control met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/36
CPCB60T13/365
Inventor 陆正涛汪明栋徐毅
Owner CRRC QIQIHAR ROLLING CO LTD
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