Improving the anti-skid system of a passenger electric locomotive

Pavel Kolpahch'yan; Vladimir Andreev

doi:10.20295/2223-9987-2024-02-100-113

UDC 629.4.051.2 UDC 629.4.07

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IMPROVING THE ANTI-SKID SYSTEM OF A PASSENGER ELECTRIC LOCOMOTIVE Improving the anti-skid system of a passenger electric locomotive

АА Аа

Published in Bulletin of scientific research results · Volume 2024, Issue 2 · Pages 100–113 · Rubric: PROBLEMATIC OF TRANSPORT SYSTEM

DOI: https://doi.org/10.20295/2223-9987-2024-02-100-113

Received: 28.06.2024 Accepted: 28.06.2024 Published: 28.06.2024

Authors

Pavel Kolpahch'yan

Vladimir Andreev

Pavel Kolpahch'yan

Academic degree: doctor of technical sciences

Emperor Alexander I Petersburg State Transport University Associate Professor · Russian Federation · Saint-Petersburg

Vladimir Andreev

Emperor Alexander I St. Petersburg State Transport University Associate Professor · Russian Federation · Saint-Petersburg

ABSTRACT

Objective: improving algorithms for protection against skidding and slipping using new methods for detecting excessive slipping of locomotive wheel pairs, allowing for early detection of the moment of loss of adhesion. Methods: the effectiveness of an anti-skid system is largely determined by the reliable detection of the occurrence of excessive wheel slip. Solving this problem requires the development of methods for isolating signals from the angular velocity of rotation and angular acceleration of the wheelset, taking into account dynamic processes in the mechanical part of the locomotive and interference in the measurement channel. Therefore, the article discusses the issues of processing rotation speed signals, extracting information about the amount of excess slip and angular acceleration of the wheelsets for use in anti-skid and skidding systems. One of the criteria that can improve the reliability of skid detection is proposed to use the “Estimated time before wheel locking”. Its value allows you to define the estimated time before the wheel jams (stops rotation). The introduction of this criterion makes it possible to more accurately determine the risk of a complete stop of wheelset rotation and increases the reliability of determining the occurrence of skidding. Results: it has been established that to eliminate errors in the measurement channel and isolate the signal about the angular acceleration of the wheelset in conditions of the presence of oscillations caused by the presence of the effects of the spatial dynamics of the locomotive, it is advisable to use a discrete Kalman filter. Signal processing using a Kalman filter in the presence of a reference signal makes it possible to significantly reduce the influence of spatial vibrations of the undercarriage of an electric locomotive when moving along a track with irregularities on the extracted signals of the angular velocity of rotation and angular acceleration of the wheelset. This makes it possible to reduce response thresholds and identify skidding and skidding before significant excess slip occurs. Practical importance: the necessity of using complex criteria based on the analysis of not only the slipping speed of wheelsets, but also angular accelerations, is shown to identify excessive slipping of locomotive wheelsets. Their use in the locomotive control system makes it possible to detect loss of adhesion in the early stages of slipping and skidding and improve the use of the adhesion weight of locomotives

KEYWORDS

anti-skid protection, train-track interaction, wheel — rail adhesion, wheelsets sliding, skid detection algorithm

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GOST

Kolpahch'yan P. G., Andreev V. E. Improving the anti-skid system of a passenger electric locomotive // Bulletin of scientific research results. 2024. no. 2. pp. 100-113. DOI: https://doi.org/10.20295/2223-9987-2024-02-100-113. (Date of access 08.10.2026).

MLA

Pavel Kolpahch'yan, Andreev V. E.. "Improving the anti-skid system of a passenger electric locomotive." Bulletin of scientific research results 2024.2 (2024): 100-113. DOI: https://doi.org/10.20295/2223-9987-2024-02-100-113.

APA

Kolpahch'yan P. G., Andreev V. E. (2024). Improving the anti-skid system of a passenger electric locomotive. Bulletin of scientific research results, 2024(2), 100-113. https://doi.org/10.20295/2223-9987-2024-02-100-113

Chicago

Pavel Kolpahch'yan, Andreev V. E.. "Improving the anti-skid system of a passenger electric locomotive." Bulletin of scientific research results 2024, no. 2 (2024): 100-113. https://doi.org/10.20295/2223-9987-2024-02-100-113.

WIKI

{{cite journal | author = Kolpahch'yan P. G., Andreev V. E. | title = Improving the anti-skid system of a passenger electric locomotive | journal = Bulletin of scientific research results | year = 2024 | volume = 2024 | issue = 2 | pages = 100-113 | doi = 10.20295/2223-9987-2024-02-100-113 }}

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IMPROVING THE ANTI-SKID SYSTEM OF A PASSENGER ELECTRIC LOCOMOTIVE Improving the anti-skid system of a passenger electric locomotive

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