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June 3, 2026Quarterly Report of RTRIOpen Access

Estimation of Wheel/Rail Contact Conditions Based on State Space Model Using Data Acquired from Instrumented Wheelset

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Authors

SKShoya KUNIYUKITHTakatoshi HONDOMSMitsugi Suzuki

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Overview

This randomized trial finds that a new method estimates wheel/rail contact conditions, enhancing safety evaluations.

Key Points

  • The research aims to develop a method that accurately estimates wheel/rail contact conditions using data from an instrumented wheelset.
  • Implemented a state-space model using measurement data from instrumented wheelsets.
  • Employed a Kalman filter-based state estimator to analyze contact conditions.
  • Conducted vehicle dynamics simulations and validated the method with running test data.
  • Successfully estimated contact conditions in curved track sections with radii under 600 m.
  • Provided accurate estimates of wheelset angle of attack, contact position, and friction coefficient.
  • Validated via running test data, demonstrating efficiency in estimating contact conditions.

Cite This Study

KUNIYUKI et al. (2026) studied this question.

synapsesocial.com/papers/6a1fc3a6dee9eb8c0dce518bhttps://doi.org/10.2219/rtriqr.67.2_131
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