Multibody Modelling of Railway Vehicle Odometry Sensor Noise under Static and Dynamic Conditions
(2026) 8th International Conference on Multibody System Dynamics — Location: Seville, Spain (16.June.2026)
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- Abstract
- Recent advances in odometry and automatic train control (ATO) technologies, which integrate inertial measurement units (IMUs), wheel sensors, and global navigation satellite systems (GNSS), are challenging the traditional use of simplified railway vehicle dynamics in signalling applications. More complex 3D multibody models are composed of three main parts: (i) the railway vehicle and track system, (ii) the models for the sensors used by the odometry system and (iii) the speed controller module. The present research focus on the two latest by describing how realistic sensor measurements can be obtained from a multibody framework and how to tackle the challenges inherent to bringing a railway 3D multibody model to standstill. To simulate realistic behaviour, specific noises must be added to the sensor measurements. The extended abstract presents classical types of noise that disturb IMU measurements, as well as a model for integrating them within a simulation environment. Finally, the extended abstract details improvements of classical wheel-rail models to allow the vehicle to reach standstill.
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Citations
Buset, A., Fisette, P., & Docquier, N. (2026). Multibody Modelling of Railway Vehicle Odometry Sensor Noise under Static and Dynamic Conditions. 8th International Conference on Multibody System Dynamics, Seville, Spain. https://hdl.handle.net/2078.5/278198