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Air brake pressure control system and brake control method

A technology of pressure control and air brake, applied in the direction of brake safety system, brake, brake components, etc., to ensure accuracy, eliminate hidden dangers, and ensure safe operation

Active Publication Date: 2019-11-01
CRRC QINGDAO SIFANG ROLLING STOCK RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In view of the above problems in the prior art, the present invention provides an air brake pressure control system and a brake control method, which can apply more accurate pressure when the pressure signal fails, and avoid the loss of braking force when the pressure cannot be fed back. problems, can effectively improve driving safety, and will not affect the normal operation of the line

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  • Air brake pressure control system and brake control method
  • Air brake pressure control system and brake control method

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Embodiment Construction

[0052] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0053] figure 1 is a schematic structural diagram of an air brake pressure control system according to an embodiment of the present invention. Such as figure 1 As shown, the air brake pressure control system of the present invention includes an inflation solenoid valve 101 and an exhaust solenoid valve 102; the inflation solenoid valve 101 and the exhaust solenoid valve 102 are connected to the pressure chamber 2 to be controlled, and also includes: a pressure sensor 3 , used to collect the initial pressure value of the pressure chamber 2 to be controlled and the real-time pressure value of each valve control cycle;

[0054] The detection module 4 obtains the pressure data collected by the pressure sensor 3, and generat...

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Abstract

The invention discloses an air brake pressure control system and a brake control method. The system comprises an air inflation electromagnetic valve, an exhaust electromagnetic valve, a pressure sensor, a detection module, a pressure control unit and a controller, wherein controller comprises a learning record module and an abnormal control module. According to the brake control method, a synchronous learning and a recording control strategy of the learning record module is utilized, when signals of the pressure sensor are abnormal, the abnormal control module calls the control strategy of thelearning record module, and the air inflation electromagnetic valve or the exhaust electromagnetic valve is controlled to gradually reach the target pressure according to the corresponding control strategy. Compared with a certain fixed state that a control electromagnetic valve is in the normal power or normal power loss, the pressure of a pressure chamber to be controlled is more accurate.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle braking, and in particular relates to an air braking pressure control system and a braking control method. Background technique [0002] At present, the braking system of rail transit vehicles, including EMUs, locomotives, urban rail trains and trams, is basically an air braking system controlled by a microcomputer. The air braking system is powered by compressed air and relies on frictional tread or braking. The disc produces the braking force, and the air brake system is a key system of the rail transit vehicle, which directly affects the running performance and safety of the vehicle. [0003] Although the principle of the air circuit of various models is different, the electro-pneumatic control method of the braking system is the same. The existing air braking system includes an inflation solenoid valve and an exhaust solenoid valve, and the electronic brake control device passes Control ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T17/22B60T17/18
CPCB60T17/18B60T17/221B60T17/228
Inventor 赵欣杜振振董建峰许丰磊崔晓军孙全涛毕经全
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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