Track maintenance machine with an autonomous and redundant power supply and method for operating an energy supply system of a track maintenance machine

System and method for reducing the electric power consumption of railway system

Rail vehicle, method for driving a rail vehicle and method for producing a rail vehicle

Vehicle system and control method therefor

Locomotive and transit system efficiency and emissions improvements

Railway vehicle system

Electric railroad network and associated energy exchange process

Consist having shared electrolyte tanks

Flow battery control system for a locomotive

Locomotive natural gas storage and transfer system

Hybrid systems for locomotives

Locomotive and transit system efficiency and emissions improvements

Electric vehicle propulsion control device and railway vehicle system

Driving system for railroad vehicle