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A novel brake system for main line and high-speed applications. Regioflexx is a fully integrated device, where electronics and pneumatics are both located in a small, light and versatile box. Regioflexx name is composed by two words: “Regio”, which stands for “Regional” and “flex” which stands for “flexible”. “Regionals” means that the device can be integrated into Regionals trains, with a full compliance to latest applicable standards like EN 16185, EN 14198, EN 15595. “Flexible” means that it can be integrated into High Speed trains and Metros as well, with, also in this case, a full compliance to applicable standards like EN 15734 and EN 13452.
Summary of challenge(s) addressed by this research
The challenges of this research are summarised below:
Replacement of pneumatic components with electronic and software with NO jeopardization of function Safety. This transition is also in line with the innovations discussed in Connecta, a Shift2Rail Project
Compatibility with traditional Systems so that if classic architecture is required, there are no constraints
Device compliance to Safety and Railway Brake Systems Standards. Compliance assessed by two independent Assessors, TÜV SÜD and DB-Systemtechnik
Integration of different and several functions in a single, compact, easy maintenance and light weight device
Typical low-SIL functions, like Holding brake and WRM, shall now be implemented as SIL4 functions.
Results or expected results
Expected results are mainly the challenges listed in chapter 2, and are:
Replacement of pneumatic components with electronic and software with NO jeopardization of function Safety
Compatibility with traditional Systems so that if classic architecture is required, there are no constraints
Device compliance to Safety and Railway Brake Systems Standards. Compliance assessed by two independent Assessors, TÜV SÜD and DB-Systemtechnik
Integration of different and several functions in a single, compact, easy maintenance and light weight device
Typical low-SIL functions, like Holding brake and WRM, shall now be implemented as SIL4 functions.
Benefits
The benefits deriving from this new brake system, are:
Performances at Train Level (higher accuracy for stopping distances)
Safety improvement
Overhaul intervals increasing
Reduction of the complexity thanks to easy integration and low weight
Drastic reduction of the maintenance cost as components wear is null for that functions managed by electronic and software instead of pneumatic or electro-pneumatic components
Fleet management simplification due to high-integration design in a small and light box, allowing the replacement of the unit in less than 20 minutes by a single operator, with no help of special tools or forklift or weightlifter.
Key beneficiaries
Car Builders
End Users
EU Working Group for EU standard review and update
Wabtec: Dr. Eng. Paolo Pietro Piccione