In modern rail transportation, the traction system serves as the core power unit of locomotives, directly determining acceleration capability, energy efficiency, operational stability, and overall safety. Before electric multiple units (EMUs) and urban metro vehicles are officially deployed, their traction systems must undergo rigorous and comprehensive performance testing. To address this critical requirement, the Rail Transit Traction Performance Full-Stack Testing Solution has been developed as an integrated software and hardware platform that delivers professional, scalable, and standardized testing capabilities.

This solution strictly complies with the guidelines defined in “Railway Transport 2008.(28) – High-Speed EMU Complete Vehicle Testing Standards” and GB/T 14894 “Inspection and Test Rules for Urban Rail Transit Vehicles after Assembly.” It covers all essential traction-related tests. For EMUs, the platform enables testing of starting acceleration, traction characteristics, dynamic braking, anti-slip and wheel slide protection, speed control, traction capacity, and auxiliary power systems. For metro vehicles, it supports tests including starting acceleration, electric braking, traction thermal capacity, power supply interruption, anti-slip/brake slide, harmonic analysis, and verification of auxiliary electrical systems and battery charging equipment. Through a unified data acquisition and analysis framework, the solution adapts seamlessly to diverse train models and operating conditions, ensuring broad applicability.

Functionally, the platform achieves comprehensive multi-signal data acquisition, capturing parameters such as catenary voltage and current, converter input and DC link data, motor voltages and currents, train speed, axle speeds, and temperature profiles. It calculates starting and residual acceleration, traction force–speed characteristics, transformer current distortion, and equivalent interference currents in real time. The platform also supports operational time and distance calculation, instantaneous braking force and traction power computation, continuous 24-hour data recording, and automated report generation. Thanks to its high sampling rate and real-time computational capability, all results meet rigorous precision requirements and provide solid data support for performance optimization and safety assurance.

Compared with traditional single-function tools, this solution offers several distinctive advantages. Its universality allows direct application to both EMUs and metro vehicles during final testing before operation, eliminating redundant platform development. It is built on a real-time operating system, enabling high-frequency sampling and real-time processing to ensure both stability and accuracy. Furthermore, it goes beyond software by providing a turnkey solution that includes hardware selection, sensor configuration, cabling and fixtures, software development, and on-site testing support—allowing users to establish a fully integrated test ecosystem.

The system is also engineered for reliability and scalability, withstanding harsh electromagnetic conditions and variable environments during train operation. It supports both physical prototype testing and integration with virtual simulation models, with automated switching between real and simulated components to form a closed-loop verification process. This flexibility makes it ideal not only for research institutions conducting traction studies but also for OEMs verifying full-vehicle performance and operators performing routine validation.

As the rail industry advances toward higher speeds and smarter systems, traction performance testing plays an increasingly vital role in ensuring safe and cost-efficient operation. The Rail Transit Traction Performance Full-Stack Testing Solution empowers industry users with precise data acquisition, intelligent analysis, and comprehensive adaptability—delivering a high-efficiency, high-reliability verification path and serving as a cornerstone for safe deployment of both high-speed trains and metro systems.