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Rail vehicle brake cylinder pressure control method, device and rail vehicle

A pressure control and brake cylinder technology, applied in the field of rail vehicles, can solve problems such as excessive overshoot and frequent adjustment of solenoid valves, and achieve the effects of preventing excessive overshoot, prolonging service life, and reducing opening and closing frequency.

Active Publication Date: 2021-11-16
CRRC TANGSHAN CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a rail vehicle brake cylinder pressure control method, device and rail vehicle, which are used to overcome the problem in the related art that when adjusting the brake cylinder pressure, it is easy to cause excessive overshoot, resulting in frequent adjustment of the solenoid valve

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  • Rail vehicle brake cylinder pressure control method, device and rail vehicle
  • Rail vehicle brake cylinder pressure control method, device and rail vehicle
  • Rail vehicle brake cylinder pressure control method, device and rail vehicle

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Embodiment Construction

[0028] In order to make the technical solutions and advantages in the embodiments of the present application clearer, the exemplary embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only part of the embodiments of the present application, and Not an exhaustive list of all embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0029] In related technologies, the braking system usually uses PWM signal and PID control method to control the air filling and exhausting electromagnetic valve. First, determine the difference between the pressure value collected by the sensor and the set pressure value. If the difference exceeds the preset error range, The error is input to the PID regulator controller to obtain the control output, and the outpu...

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Abstract

The embodiment of the present application provides a rail vehicle brake cylinder pressure control method, device, and rail vehicle, which relate to rail vehicle technology and are used to overcome the excessive overshoot easily caused by adjusting the brake cylinder pressure in the related art, resulting in the electromagnetic valve The problem of frequent adjustments. The method includes: obtaining the filling and exhausting air volume of the train brake cylinder and the air flow of the brake cylinder; determining the filling and exhausting time according to the filling and exhausting air volume of the brake cylinder and the air flow of the brake cylinder; The exhaust time controls the working hours of the air filling and exhaust solenoid valves; when the air filling and exhaust working hours of the air filling and exhaust solenoid valves reach the air filling and exhaust time, the predicted pressure of the brake cylinder is obtained, and according to the predicted pressure Control the working state of the air filling and exhausting electromagnetic valve.

Description

technical field [0001] The present application relates to rail vehicle technology, in particular to a rail vehicle brake cylinder pressure control method and device and a rail vehicle. Background technique [0002] The rail train braking system has functions such as common braking, emergency braking, quick braking, and holding braking. Among them, the common braking adopts the electric-pneumatic hybrid braking method, which is completed by electric braking and air braking, and electric braking is preferred. Brake, when the electric brake is insufficient, supplement the air brake. In the case of low speed, emergency, electric brake failure, etc., the air brake needs to be fully applied, and the performance of the air brake has an important impact on the performance of the vehicle. [0003] In related technologies, the braking system usually uses PWM signal and PID control method to control the air filling and exhausting electromagnetic valve. First, determine the difference ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/68B61H11/10
CPCB60T13/683B61H11/10B60T13/26B60T17/228B60T8/171B60T11/101B60T8/1705B60T13/665
Inventor 高珊谢春杰秦佳颖温从溪李化明梁建全王振宏许红梅王晓磊尚礼明陈玄圣
Owner CRRC TANGSHAN CO LTD
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