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High speed maglev train safety braking system

A maglev train and safety braking technology, applied in the field of rail vehicle braking system, can solve the problems of high heat generation, not braking system, signal influence, etc., and achieve the effect of good braking effect

Inactive Publication Date: 2018-05-04
TONGJI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although eddy current braking is a non-adhesive braking method, it consumes a lot of power, generates high heat, is heavy, and will affect the signal. If the eddy current braking is used in emergency situations such as power failure, it will consume a lot of power , enabling a reduction in backup power used to resuspend the train and travel
The high-speed maglev train technology adopted in our country is also a conventional maglev technology. If the existing train braking system is used, it is not a safe braking system in a strict sense.

Method used

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Embodiment 1

[0022] A safety braking system for a high-speed maglev train, used for the safety braking of a maglev train 1, the system adopts windage braking when the maglev train 1 is in a high-speed section, and adopts windage braking and friction when the maglev train 1 is in a medium-speed section The composite braking used in conjunction with braking adopts frictional braking when the maglev train 1 is in a low-speed section until the maglev train 1 stops. Wherein, the wind resistance braking is realized by the wind resistance braking device 2 installed on the maglev train 1, and the friction braking is realized by the action of the electromechanical braking device 3 installed on the maglev train 1 and the maglev guide rail, as figure 1 shown.

[0023] When the braking force generated by the sum of the windage resistance and the running resistance of the maglev train 1 when the windage braking device 2 is opened makes the deceleration of the maglev train 1 not less than the design dec...

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Abstract

The invention relates to a high speed maglev train safety braking system. The system is used for safety braking of a maglev train (1). The system adopts wind resistance braking when the maglev train (1) is in a high speed stage, when the maglev train (1) is in a medium speed stage, composite braking of the combination of the wind resistance braking and friction braking is adopted, when the maglevtrain (1) is in a low speed stage, the friction braking is used until the maglev train (1) stops. Compared with the prior art, the safety braking system has a simple and compact structure, high braking efficiency and good safety.

Description

technical field [0001] The invention relates to a rail vehicle braking system, in particular to a safety braking system for a high-speed maglev train. Background technique [0002] The maglev train is a modern high-tech rail vehicle, which realizes non-contact suspension and guidance between the train and the track through electromagnetic force, and then uses the electromagnetic force generated by the linear motor to drive the train. As the speed of the train increases, the braking energy of the train is proportional to the square of the speed, the braking distance increases nonlinearly with the speed, and the wheel-rail adhesion decreases in the high-speed section, so the existing high-speed maglev trains all use compound braking system to ensure the safe braking of the train. [0003] The safety braking methods adopted by German TR08 maglev trains are eddy current braking and skid braking: when the train brakes urgently, eddy current braking is used first; when the train ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61H11/10B61H9/00B61H7/00
CPCB61H11/10B61H7/00B61H9/00
Inventor 田春吴萌岭翁晶晶马天和冯夫磊彭顺袁泽旺
Owner TONGJI UNIV