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Control method and device for locomotive air anti-skid system

A control method and locomotive technology, applied in the direction of pneumatic brakes, transportation and packaging, railway car body parts, etc., can solve the problems of braking force loss and affecting the safety of locomotive operation, and achieve the effect of ensuring operation safety

Active Publication Date: 2016-03-09
ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the adhesion condition between the locomotive wheel and the rail surface continues to be in a bad state and the emergency braking process is implemented, or the air anti-skid system fails, the air anti-skid system may reduce the pressure of the brake cylinder to zero and maintain it, making the braking force Continuous loss, which seriously affects the safety of locomotive operation

Method used

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  • Control method and device for locomotive air anti-skid system
  • Control method and device for locomotive air anti-skid system
  • Control method and device for locomotive air anti-skid system

Examples

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Effect test

Embodiment 1

[0046] like figure 1 Shown is a flow chart of a control method for a locomotive air anti-skid system of the present invention, the method may include:

[0047] Step S101: When receiving the emergency braking signal of the locomotive, obtain the current braking initial speed of the locomotive, and start timing.

[0048] In practical applications, when the driver applies emergency braking to the locomotive, the air anti-skid system of the locomotive will receive the emergency braking signal of the locomotive. At this time, the air anti-skid system can obtain the current braking initial speed, and start timing at the same time for subsequent calculations.

[0049] Wherein, as another embodiment of the present invention, the air anti-skid system of the locomotive can monitor and record the running speed of the locomotive in real time, so that once the air anti-skid system receives an emergency braking signal, it can obtain the speed of the locomotive in time. The current braking...

Embodiment 2

[0063] like figure 2 As shown, it is a flow chart of a control method of another locomotive air anti-skid system of the present invention, and the method may include:

[0064] Step S201: Obtain the running monitoring data of the locomotive.

[0065] Step S202: According to the operation monitoring data, it is judged whether the emergency braking signal of the locomotive is received, if yes, then directly go to step S203, if not, then go to step S208.

[0066] Step S203: Obtain the current initial braking speed of the locomotive, and start timing.

[0067] Step S204: Bring the current initial braking speed into a first preset formula to calculate the cut-off time corresponding to the current initial braking speed.

[0068] Wherein, the expression of the first preset formula can be:

[0069] t = 2 · ( v 3.6 · a ...

Embodiment 3

[0077] like image 3 As shown, it is a structural schematic diagram of a control device of a locomotive air anti-skid system according to the present invention, and the device may include:

[0078] The first acquiring module S301 is configured to acquire the current braking initial speed of the locomotive when receiving an emergency braking signal of the locomotive, and start timing.

[0079] Preferably, the control device may also include:

[0080] The second acquiring module is used to acquire the operation monitoring data of the locomotive.

[0081] In practical applications, the second obtaining module may perform the obtaining operation in real time or periodically, which is not limited in the present invention.

[0082] The second judging module is used to judge whether the emergency braking signal of the locomotive is received according to the operation monitoring data.

[0083] Wherein, the emergency braking signal can be a level signal, and when the level signal is...

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Abstract

The present invention discloses the control method and device of the air -skid system of the locomotive. When the locomotive air -skid system receives the emergency braking signal of the locomotive, the current braking of the locomotive is obtained. At the same time, the timing starts.Bring the current speed of the obtained braking into the first preset formula to calculate the resection time corresponding to the current speed of the current braking, and determine whether the current timing time obtained from the current time is smaller than the resection time.The system will automatically remove all its functions.As a result, the effect of the air -skid system on the brake cylinder is temporarily invalidated, the braking power of the brake cylinder tube will gradually recover, so that the locomotive will be stopped in time under the action of the brake, ensuring the operation of the locomotive operation safety, and ensuring the operation of the locomotive operation safetyEssence

Description

technical field [0001] The invention relates to the field of locomotive air anti-skid control, in particular to a method and device for controlling the air anti-skid system of a locomotive. Background technique [0002] In practical applications, in order to prevent the locomotive from sliding due to low adhesion coefficient when the locomotive is braking, thereby causing wheel scratches and collisions, an air anti-skid system is usually installed on the locomotive. When the locomotive wheel is about to When skidding occurs, the air anti-skid system will control its anti-skid valve to interfere with the pressure of the brake cylinder pipe, and by changing the pressure of the brake cylinder, the skid of the locomotive wheels can be avoided. [0003] However, when the adhesion condition between the locomotive wheel and the rail surface continues to be in a bad state and the emergency braking process is implemented, or the air anti-skid system fails, the air anti-skid system ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61H11/06
CPCB61H11/06
Inventor 李希宁黄金虎毛金虎张娟黎丹何小威
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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