Working Paper Article Version 1 This version is not peer-reviewed

Hardware-in-the-Loop Simulation Method for an Individual Motor Torque Control to Improve the Running Performance of the Independently Rotating Wheel Type Railway Vehicle

Version 1 : Received: 10 May 2020 / Approved: 11 May 2020 / Online: 11 May 2020 (10:17:52 CEST)

How to cite: Cho, Y. Hardware-in-the-Loop Simulation Method for an Individual Motor Torque Control to Improve the Running Performance of the Independently Rotating Wheel Type Railway Vehicle. Preprints 2020, 2020050191 Cho, Y. Hardware-in-the-Loop Simulation Method for an Individual Motor Torque Control to Improve the Running Performance of the Independently Rotating Wheel Type Railway Vehicle. Preprints 2020, 2020050191

Abstract

In order to realize the tram's low-floor structure, most of the trams that have been recently introduced adopt an independently rotating wheelset. In the case of trains driving in two regions with different gauges, an independently rotating wheelset may be applied to utilize the variable track technology. Since the independent rotation type wheelset has no rotational restraint of the left and right wheels, the difference in rotational speed between the outer and inner wheels occurs naturally during curved driving, and it is applied to railroad vehicles traveling in steep curve sections because it smoothly drives curved driving. However, the longitudinal creep force and the lateral restoring force are weakened as the left and right rotational constraints disappear. Lack of transverse direction restoring force weakens stability while causing continuous flange contact driving or zigzag phenomenon against disturbance. Under the conditions of driving in a steep curve, these railway vehicles generate excessive wear, noise, and lateral pressure, as well as deterioration of ride comfort and derailment. In order to overcome these drawbacks, a method has been proposed in which the torque of a motor mounted on each wheel is individually controlled to generate lateral restoring force or to improve driving performance through lateral displacement control using a yaw moment. In this paper, development using HILs was performed to check the performance and stability of the individual motor torque control technology before verifying by applying the individual motor torque control to the actual vehicle. HILs were constructed by combining a real-time dynamic analysis model of a railway vehicle with a drive motor to which real individual motor control was applied. Under the conditions of driving the test track where the actual test vehicle was tested, the analysis of the driving characteristics and the control characteristics of the disturbance was performed to confirm the proposed individual motor torque control performance.

Subject Areas

IRWs (Independently Rotating Wheels); Railway; HILs (Hardware In the Loops Simulation); ITC (Individual Torque Control); TRAM; Motor Control

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.