Controller-based active radial bogie and its active steering control method

A radial bogie and controller technology, applied in the field of vehicle bogies, can solve problems such as difficult control, high maintenance cost, and difficult implementation, and achieve high accuracy and robustness, high control precision, and low external interference Effect

Active Publication Date: 2021-01-26
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current radial bogies are still extremely rare in railway vehicles. The first reason is that the radial steering device based on the linkage mechanism is easily deformed and the maintenance cost is high. The more important reason is that it is difficult to control and difficult to implement.

Method used

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  • Controller-based active radial bogie and its active steering control method
  • Controller-based active radial bogie and its active steering control method
  • Controller-based active radial bogie and its active steering control method

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Embodiment Construction

[0039] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0040] refer to Figure 1 to Figure 5 As shown, the controller-based active radial bogie in an embodiment provided by the present invention includes an active radial bogie, a drive circuit, a displacement sensor and a controller;

[0041] The active radial bogie includes a main frame 8, an auxiliary frame 1 and a radial driving mechanism 5. The main frame 8 and the auxiliary frame 1 are hinged to form a bogie body. 3 is connected with the rear swing arm 7;

[0042] The displacement sensor is installed on the main frame 8, and the motor 10 is provided with a pulse encoder 9. The displacement sensor and the pulse encoder 9 are connected to the controller, and the controller is connected to the motor 10 of the radial drive mechanism 5 through a drive circuit.

[0043] Further, the active radial bogie also includes a wheel set 2 and a suspension device,...

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Abstract

The invention discloses an active radial bogie based on a controller and an active steering control method thereof, comprising an active radial bogie, a drive circuit, a displacement sensor and a controller; the active radial bogie includes a main frame, an auxiliary frame and Radial driving mechanism, the main frame and the sub-frame are hinged, and the two ends of the radial driving mechanism are respectively connected with the front and rear rotating arms of the main frame; the displacement sensor is installed on the main frame, and the displacement sensor, pulse coder and controller The controller is connected with the motor of the radial drive mechanism through the drive circuit. It can improve the active steering control effect of the active radial bogie, improve the running stability and curve passability of railway vehicles, and the control is stable, the steering control precision is high, and it is not easy to be affected by external interference, so as to realize accurate active steering and effectively reduce wheel wear. Extend the service life of the wheelset.

Description

technical field [0001] The invention relates to the technical field of vehicle bogies, in particular to a controller-based active radial bogie and an active steering control method thereof. Background technique [0002] The bogie is a key component of a railway vehicle, and its dynamic performance is an important factor affecting the running stability and curve passability of a railway vehicle. Currently, the bogies of railway vehicles are mainly operated in a "passive steering" mode, where the creep forces between the wheels and rails are too high, resulting in excessive wear on the wheels and rails. For this reason, a radial bogie is developed that can effectively solve the contradiction between vehicle running stability and curve passability. On the premise of ensuring vehicle running stability, it can reduce the creep force between wheel and rail and reduce wheel and rail wear. The basic steering principle of the radial bogie is to convert the relative angular displacem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61F5/38B61F5/52
CPCB61F5/38B61F5/52
Inventor 徐琳许敦坤
Owner WUHAN UNIV OF TECH
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