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Eddy current brake, control device of eddy current brake and maglev train

A technology for eddy current brakes and maglev trains, which is applied to motor vehicles, electric vehicles, electric braking systems, etc., and can solve the reliability discount of emergency braking of high-speed maglev trains, the lack of parking braking function of eddy current braking systems, and the problem of eddy current braking. The system can not work and other problems, to achieve the effect of increasing the parking brake function, simple and reliable device structure and control, and improving reliability

Inactive Publication Date: 2020-11-10
ZHUZHOU CSR TIMES ELECTRIC CO LTD +1
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Problems solved by technology

However, the eddy current braking system is not perfect. Under the extreme condition of train power loss, the electric braking system will completely fail due to the lack of excitation current. At this time, the ordinary eddy current braking system will also completely fail due to the lack of excitation current. Only skid braking (mechanical friction braking) is performed, which greatly reduces the reliability of emergency braking of high-speed maglev trains
[0006] In addition, when the power supply is cut off when the train is parked, the eddy current braking system cannot work, that is, the eddy current braking system also lacks the parking braking function

Method used

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  • Eddy current brake, control device of eddy current brake and maglev train
  • Eddy current brake, control device of eddy current brake and maglev train
  • Eddy current brake, control device of eddy current brake and maglev train

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Embodiment Construction

[0024] The detailed features and advantages of the present invention are described in detail below in the specific embodiments, the content of which is sufficient to enable any person skilled in the art to understand the technical content of the present invention and implement it accordingly, and according to the specification, claims and drawings disclosed in this specification , those skilled in the art can easily understand the related objects and advantages of the present invention.

[0025] The eddy current braking configuration targeted by the present invention will be described below with reference to the prior art shown in Fig. 1(a) and Fig. 1(b) (Chinese invention patent CN1842431B).

[0026] Fig. 1 (a) shows the installation position of the eddy current brake of the maglev train in the prior art, wherein the train has a hanger 16 and a car body 17, and the car body 17 is supported on a spring 18. At least one eddy current brake 20 is arranged on the inner side of the...

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Abstract

The invention provides an eddy current brake for a maglev train, and the brake comprises an eddy current brake electromagnet and a brake air cylinder. The eddy current brake electromagnet is arrangedon the maglev train and is opposite to a guide rail of the maglev train in the horizontal direction; the brake air cylinder comprises a movable component, and the movable component is pushed by air pressure and is in rigid connection with the eddy current brake electromagnet, so that the eddy current brake electromagnet is controllably close to or far away from the guide rail. In addition, the invention further provides a control device for the eddy current brake and the maglev train with the eddy current brake, the transverse stretching and retracting of the eddy current brake of the high-speed maglev train are controlled, and the defect of emergency braking of an eddy current braking system of the high-speed maglev train is overcome, thereby improving the reliability of emergency braking, and adding the parking braking function. The device is simple and reliable in structure and control.

Description

technical field [0001] The invention relates to the field of maglev rail transit, in particular to an eddy current brake system for a maglev train. Background technique [0002] As a new type of ground transportation, the maglev train has the advantages of fast speed, stable operation, low noise, and small environmental impact. Because of its high speed, the braking system of maglev trains is more complicated and important than that of ordinary trains. At present, maglev trains generally adopt a combination of dynamic braking, mechanical friction braking and eddy current braking. [0003] The dynamic braking method, that is, electric braking, changes the current phase sequence of the motor, so that the original motor output force is reversed into a braking force. It has the advantages of energy saving, environmental protection, and good control performance. However, due to capacity limitations, Safety considerations and requirements for trailer braking, emergency braking, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/28B60L13/04
CPCB60L7/28B60L13/04B60L2200/26
Inventor 赵海涛许义景陈启会钟思琦夏文杰吴炫辰王威
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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