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A semi-active safety control method for high-speed trains

A technology for safety control and high-speed trains, applied to railway car body parts, bogies, transportation and packaging, etc., to suppress lateral vibration, ensure train operation safety, and improve operation safety

Active Publication Date: 2017-08-25
ZHEJIANG UNIV
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a semi-active safety control method for the suspension system of a high-speed train in view of the deficiencies of the existing control methods for train operation safety

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  • A semi-active safety control method for high-speed trains
  • A semi-active safety control method for high-speed trains
  • A semi-active safety control method for high-speed trains

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific examples.

[0022] The control process of the suspension system in high-speed train operation generally consists of three stages: data collection of train running status, control output of the controller, and damping force output of the lateral shock absorber under the action of the control input. Specifically, in the data collection stage, the sensors distributed on the train transmit the collected lateral velocity of the train body, the lateral relative velocity between the car body and the bogie, and the lateral contact force of the wheel and rail to the semi-active controller. The semi-active controller processes the data returned by the sensor, and the output control value acts on the lateral shock absorber as an actuator. Under the action of the control quantity of the controller, the transverse shock absorber outputs the corresponding damping force to ...

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Abstract

The invention discloses a semi-active safety control method for a suspension system of a high-speed train. The method can reduce the derailment coefficient during the operation of the high-speed train and improve the safety of the train under the high-speed operation state. On the basis of the traditional ceiling damping control method, the present invention adds the wheel-rail lateral force closely related to the train derailment coefficient as an input variable, and constructs a brand-new semi-active control method, which can effectively restrain the wheel The lateral vibration of the bogie reduces the derailment coefficient of the train and greatly improves the safety of the train. The method is simple and easy to implement, and has been successfully applied in the suspension system of high-speed trains, which is helpful for the realization of intelligent control of high-speed trains.

Description

technical field [0001] The invention belongs to the control field of high-speed train suspension systems, and in particular relates to a method aimed at a laterally controllable shock absorber of a high-speed train suspension system, capable of suppressing lateral vibration of train wheel sets and bogies, and reducing the derailment coefficient during train operation. Background technique [0002] In recent years, with the rapid development of high-speed train technology, the problem of train operation safety has gradually become prominent. As an efficient and relatively cheap mode of transportation, high-speed train operation safety is closely related to people's lives. [0003] Generally, the control methods of high-speed train suspension systems are divided into passive control, semi-active control and active control methods. Among them, the semi-active control method is most widely used because of its good control effect and low cost. Traditional semi-active control met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61F5/00
Inventor 郭进徐正国孙优贤
Owner ZHEJIANG UNIV
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