A magnetic track brake control method, device and circuit
A technology of magnetic rail braking and control methods, applied in the direction of braking transmission devices, brakes, braking components, etc., can solve the problems of damaging train equipment, reducing passenger comfort, and losing magnetic rail braking force, so as to ensure comfort degree of effect
Active Publication Date: 2021-06-04
ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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Problems solved by technology
[0003] In the prior art, since the magnetic rail braking force will increase with the decrease of the current speed of the train, when the train is in a low speed state, the magnetic rail braking force will apply an excessive braking force to the train and damage the train equipment. , when the current speed of the train is lower than a certain value, the train needs to immediately remove the magnetic track brake
[0004] However, when the magnetic rail braking is removed, the train will lose the magnetic rail braking force instantaneously, causing the longitudinal impact rate (the acceleration change rate of the train along the track direction) to exceed the specified range, which greatly reduces the passenger comfort.
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[0036] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0037] Such as figure 1 As shown, the embodiment of the present invention proposes a magnetic track brake control method, the method includes the following steps:
[0038] S10, obtaining the current speed of the train with the magnetic track brake;
[0039] Wherein, the present invention can directly obtain the current speed of the train through the speed sensor provided on the train.
[0040] Optionally, the obtaining the curren...
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The invention discloses a magnetic rail braking control method, device and circuit, which can determine whether the current speed is within a preset speed range after obtaining an emergency braking command for the train by obtaining the current speed of a train with a magnetic rail brake If yes, then determine the current used to load the magnetic track brake according to the current speed, the current speed is positively correlated with the current, and load the determined current on the magnetic track brake, so that the magnetic track brake output by the magnetic track brake The rate of change of power is not greater than the preset threshold, so that the magnetic rail braking force and its rate of change will not change significantly, and it is within the allowable range when the magnetic rail brake is put into use, so as to avoid low-speed trains braking on the magnetic track. After it is put into use, it will suffer from the problem of excessive braking force, so that the train does not need to cut off the magnetic rail brake when the current speed is less than a certain value, thereby avoiding the situation that the longitudinal impact rate of the train exceeds the allowable range, and ensuring the comfort of passengers when riding the train .
Description
technical field [0001] The invention relates to the field of train braking, in particular to a magnetic rail braking control method, device and circuit. Background technique [0002] Magnetic rail braking is a kind of non-adhesive braking (the braking force generated by non-adhesive braking is not limited by the adhesion force between the wheel and the rail when rolling), and can be used as an emergency brake for trains (need to be used within the shortest distance) It is a kind of supplementary braking when the train is stopped. It is not activated when the train is not in emergency braking. When the train needs emergency braking, it can be used together with other train braking methods (such as air brake) to complete the emergency braking of the train. After the magnetic rail brake is put into use, the electromagnet installed on the train bogie will be energized and generate magnetic attraction force with the train track, so that the wear plate installed on the electromagn...
Claims
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IPC IPC(8): B61H7/08B61C17/12B60T1/14B60T13/74
CPCB60T1/14B60T13/748B61C17/12B61H7/08
Inventor 阳靖陈林委玉佳曾毅孙宪红金怡
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD