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International Journal of Railway Technology
ISSN 2049-5358
IJRT, Volume 7, Issue 3, 2018
Hybrid Rail Vehicles using Digital Hydraulics
W.H.S. Rampen1, G.P. Voller2, S.M. Laird2, D. Abrahams2 and J. Macpherson2

1The University of Edinburgh, Edinburgh, United Kingdom
2Artemis Intelligent Power Ltd, Edinburgh, United Kingdom

Full Bibliographic Reference for this paper
W.H.S. Rampen, G.P. Voller, S.M. Laird, D. Abrahams, J. Macpherson, "Hybrid Rail Vehicles using Digital Hydraulics", International Journal of Railway Technology, 7(3), 45-66, 2018. doi:10.4203/ijrt.7.3.3
Keywords: hybrid, powertrain, hydrostatic, hydraulic, railcar, transmission.

This paper shows how a new generation of digital hydraulic machines can be used to create a series hybrid transmission for a diesel-powered railcar, with gas accumulators used for on-board energy storage. Simulation results are provided for a concept passenger vehicle based on this technology, showing improvements to performance and fuel consumption. The conversion of a demonstration vehicle is described and test results are presented.

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