DB Cargo Hungária has begun the first phase of operational testing of a dual traction system in diesel mode, where two diesel locomotives operate as a single functional unit. The locomotives are connected by an electric cable, ensuring synchronous transmission of control commands and coordinated operation of both locomotives. This configuration allows a single driver to simultaneously control both locomotives, effectively doubling the traction power while optimally utilizing resources.
The purpose of the tests is to verify synchronization accuracy, traction characteristics, and locomotive performance under real-world operating conditions, as well as to obtain final approval for the technology from the national safety regulator. The company expects the implementation of dual traction to expand the capabilities of its fleet of 19 diesel locomotives, including for heavy-duty shunting operations, special transport tasks, and operation on non-electrified sections of the line.
In preparation for the tests, both locomotives underwent significant technical upgrades: their engines were overhauled, one locomotive had its gearbox completely rebuilt, and new air conditioning systems were installed in the cabs. The data obtained during the tests will form the basis for further development and potential scaling of dual traction technology in freight rail transport.