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Brake system and brake processing method for rail transit vehicle

A rail transit vehicle and braking control technology, which is applied in the direction of brakes, etc., can solve the problems of inability to meet the requirements of safe operation of high-speed rail transit vehicles, inability to optimize control of braking deceleration, short braking distance, etc., to achieve shortened braking distance, Prevents wheel skidding and prolongs service life

Active Publication Date: 2011-08-17
CHINA RAILWAYS CORPORATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although this method of braking can ensure that the wheels will not slide on the track, it cannot effectively optimize the control of the braking deceleration, and the braking distance cannot be minimized in an emergency, and it cannot fully guarantee high-speed braking. Requirements for safe operation of rail transit vehicles

Method used

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  • Brake system and brake processing method for rail transit vehicle
  • Brake system and brake processing method for rail transit vehicle
  • Brake system and brake processing method for rail transit vehicle

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Embodiment Construction

[0022] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] figure 1 It is a structural diagram of Embodiment 1 of the brake system for rail transit vehicles according to the present invention, as figure 1 As shown, the system of this embodiment may include: a brake command generation device 10, a brake control device 11 and a brake execution device 12,

[0024] The braking command generation device 10 is connected with the brak...

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PUM

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Abstract

The invention provides a brake system and a brake processing method for a rail transit vehicle. The brake system for the rail transit vehicle comprises a brake instruction generating device, a brake control device and a brake executing device, wherein the brake instruction generating device is connected with the brake control device; and the brake control device is connected with the brake executing device and a sensor respectively. By the brake system and the brake processing method, the optimal braking force value for a brake action can be acquired according to the real-time state of a train and the brake action is performed by using the optimal braking force value, so the braking distance of the rail transit vehicle can be effectively shortened; wheels are prevented from sliding; the safety of train operation can be improved; a wheel tread can be effectively protected; and the service life of the wheels is prolonged.

Description

technical field [0001] The invention relates to rail transit vehicle control technology, in particular to a braking system and a braking processing method for rail transit vehicles. Background technique [0002] Currently, rail vehicles rely on the adhesion between the wheels and the rails for braking. The adhesion force F=μ×m, where μ is the adhesion coefficient between the wheel and the track, and m is the mass of the rail transit vehicle. Since the adhesion coefficient μ is inversely proportional to the running speed of the rail transit vehicle, as the running speed of the rail transit vehicle increases, the maximum braking deceleration obtained by the rail transit vehicle through the adhesion force will decrease accordingly. However, when the actual braking deceleration applied to the rail transit vehicle by braking devices such as brake shoes and brake discs is too large, the wheels will slide on the track. On the one hand, this will lead to the prolongation of the ac...

Claims

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Application Information

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IPC IPC(8): B60T8/172B60T8/20B60T8/32
Inventor 刘作琪陆啸秋曹宏发李和平杨伟君韩晓辉姜岩峰武青海
Owner CHINA RAILWAYS CORPORATION
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