Thermal supervision of motors, gearboxes, and journal boxes

Determination of the technical condition of moving parts of the traction motor, traction gearbox, and axle boxes based on their temperature measured by the onboard microprocessor-based monitoring and control system.

Creation of a system that enables real-time determination of changes in the technical condition of moving parts of the traction motor, traction gearbox, and axle boxes based on data obtained through centralised collection and processing of information

1. This is a comprehensive system to improve reliability, operational readiness, and performance through early fault detection, automatic recommendations for rectifying existing or impending failures, and enhanced maintenance.

2. The temperature monitoring system is part of the onboard diagnostic system and performs functions that ensure safe EMU operation.

3. The system is equipped with a built-in self-diagnostic system that checks all sensors, cables, and electronics for faults, signal interruption, short circuits, or loss of power. Any fault triggers an alarm. In case of power loss, the system automatically restarts when power is restored.

1. Temperature measurement is performed using redundant temperature sensors connected to intelligent processing units that convert the measured signal into a digital code with the capability to:

• transmit the resulting digital code over data transmission networks;
• perform local processing of the digital code and generate discrete signals when temperature exceeds allowable limit values.

2. Accumulation and storage of temperature values for monitored nodes uses a relational database optimised for real-time systems, with heightened requirements for data reliability and security.

3. Software is developed using:

• programming languages: C, C++;
• development tools: Visual Studio, Eclipse, NetBeans, and specialised integrated environments for embedded microcontroller software (IAR, Keil, CubeIDE);
• source code management tools: SVN, Git;
• requirements management tools: T-FLEX RM.