Semi-active train control method based on magnetorheological fluid damper

A technology of semi-active control and variable damper, applied in the direction of self-adjustment of axles, etc., can solve problems such as the deterioration of train running performance and consumption of large external energy, and achieve the rapid deterioration of vehicle performance, reduction of wear coefficient, and simple detection unit. Effect

Active Publication Date: 2015-11-04
BEIJING JIAOTONG UNIV
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Problems solved by technology

However, the full active suspension system needs to consume a large amount of external energy and the train performance will deteriorate sharply after the system fails.

Method used

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  • Semi-active train control method based on magnetorheological fluid damper
  • Semi-active train control method based on magnetorheological fluid damper
  • Semi-active train control method based on magnetorheological fluid damper

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Embodiment Construction

[0035] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0036] like figure 1 As shown, the semi-active train control method based on the magneto-rheological fluid damper provided in this embodiment includes the following steps:

[0037] S1. Use the gyroscope to obtain the shaking head angular velocity ω of the front and rear wheel pairs during the running of the train wf , ω wr and the angular velocity ω of the bogie b , the specific process is:

[0038] like figure 2 As shown, the gyroscope S installed on the front and rear wheels of the bogie respectively 1 , S 2 Obta...

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Abstract

The invention discloses a semi-active train control method based on a magnetorheological fluid damper. The method comprises the following steps of S1, obtaining a yaw angular velocity of a front wheel pair, a yaw angular velocity of a rear wheel pair and a yaw angular velocity of a bogie in the operation process of a train through a gyroscope; S2, processing and computing the yaw angular velocity of the front wheel pair, the yaw angular velocity of the rear wheel pair and the yaw angular velocity of the bogie in the operation process of the train so as to obtain relative yaw angular velocities of the front wheel pair and the rear wheel pair relative to the bogie; S3, obtaining relevant line information of the train operation through a vehicle data bus MVB; and S4, judging the type of a train operation line according to the relevant line information and controlling a plurality of longitudinal magnetorheological fluid dampers arranged on the train according to a train control strategy corresponding to the type of the train operation line so as to realize the control of the train. Through the adoption of the technical scheme disclosed by the invention, the stability of the train in linear operation can be effectively enhanced, the critical velocity is increased and the curve passage capacity of the train is improved.

Description

technical field [0001] The invention relates to the field of train detection and control. More specifically, it relates to a semi-active train control method based on a magneto-rheological fluid damper. Background technique [0002] With the rapid development of my country's high-speed railway and urban rail transit system, the running speed of trains continues to increase. The speed-increased trains have exposed some new dynamic performance problems. The grades of some lines are quite different and are not easy to be modified due to conditions, so it is difficult to adapt to the further speed-up requirements of trains. In addition, suppressing vibrations by maintaining high-level infrastructure such as rails requires huge costs. In the face of the contradictions caused by the increasing vibration, shock and dynamic load of trains and lines, rail vehicle dynamics should start from ensuring safe and stable operation in order to improve fatigue resistance, reduce wear, prolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F5/44
Inventor 魏秀琨贾利民朱明杨杰尹贤贤申丽李卓玥贺延芳王腾腾张晓中
Owner BEIJING JIAOTONG UNIV
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