Advanced Sensing and Measurement for Multi-Domain Interactions in Electrified Transportation Systems

Dear Colleagues,

Electrified transportation systems are rapidly evolving toward higher speed, higher efficiency, greater intelligence, and deeper system integration. In these systems, many critical engineering challenges are inherently governed by multi-domain interactions, rather than by a single physical process alone. Electrical, mechanical, thermal, magnetic, tribological, and control-related effects are often strongly coupled; such couplings directly affect system reliability, energy efficiency, safety, and service life. Therefore, advanced sensing and measurement techniques are becoming increasingly important for revealing coupled behaviors, quantifying system states, and supporting the diagnosis and mitigation of complex engineering problems.

Representative examples can be found across a wide range of applications. In high-speed railways, electric sliding contacts such as pantograph–catenary systems involve coupled current transfer, contact mechanics, vibration, wear, temperature rise, and arcing. In traction motors and drive systems, electromagnetic, thermal, structural, and control effects interact continuously during operation. Similar coupled phenomena also arise in electrified vehicles, photovoltaic-assisted transportation platforms, and aerospace electromechanical interfaces such as satellites. In many cases, understanding and solving these engineering problems fundamentally rely on the accurate sensing, measurement, monitoring, and interpretation of multi-domain behaviors.

This Special Issue aims to present and disseminate the latest advances in sensing, measurement, monitoring, modelling, and diagnostics for multi-domain interactions in electrified transportation systems. We welcome contributions addressing novel sensors, experimental methods, signal processing, data-driven approaches, digital twins, intelligent condition monitoring, fault diagnosis, and performance evaluation for coupled engineering systems. Research that improves the understanding, characterization, and management of multi-domain interactions in practical transportation applications is particularly encouraged.

Topics of interest for publication include, but are not limited to, the following:

• The sensing and measurement of multi-domain interactions in electrified transportation systems.
• The multi-physics modelling and experimental characterization of coupled engineering phenomena.
• Electric sliding contact monitoring and diagnostics.
• Sensing and diagnostics for traction motors and drive systems.
• Thermal, electromagnetic, and mechanical interaction analysis in transport equipment.
• Intelligent condition monitoring and fault diagnosis for coupled systems.
• Signal processing and feature extraction for multi-domain measurements.
• Digital twins and data-driven methods for coupled transportation systems.
• Sensor fusion for complex state perception and health assessment.
• Reliability, durability, and safety evaluation under multi-domain coupling conditions.

Prof. Dr. Yang Song
Dr. Saikat Dutta
Dr. Hongrui Wang
Guest Editors

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