Communication Dans Un Congrès Année : 2020

Evaluation of a solution for electric supply of vehicles by the road, at laboratory and full scale

Résumé

Nowadays, the development of electric heavy goods vehicles is hindered by the limited capacity of batteries. An alternative solution to batteries is to develop electrified road systems, capable of supplying and/or recharging electric vehicles while they are driving. In this project, an Electric Road System (ERS), i.e. a solution for electric supply by a feeding track embedded in the pavement, is studied. The system consists of metallic conductive segments, fixed on a rubber support, installed in a groove in the middle of the pavement. Laying such a device in a bituminous pavement requires an efficient bonding of the rubber with the pavement materials, and a good resistance to traffic and climate. Studies were made at laboratory scale and at full scale to select appropriate joint materials and assess the load resistance and durability of the rail/pavement system. Two types of laboratory tests were performed on asphalt concrete samples integrating the rubber elements: wheel tracking tests, at temperatures of 20, 40 and 60 °C, and climatic tests (temperature cycles between −20 °C and 20 °C). Modelling of the tests was also carried out. After evaluation of different products, an appropriate joint material was selected. Then, an accelerated test was performed with the FABAC traffic simulator, to validate the behavior of the electric supply system inserted in a bituminous pavement, at full scale. The pavement structure was instrumented, submitted to 500 000 dual wheel load cycles at 65 kN, and monitored using deflection measurements and profile measurements. The test confirmed the satisfactory behavior obtained at laboratory scale.

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Dates et versions

hal-04372798 , version 1 (04-01-2024)

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Pierre Hornych, Thomas Gabet, Mai Lan Nguyen, Fabienne Anfosso-Lédée, Patrick Duprat. Evaluation of a solution for electric supply of vehicles by the road, at laboratory and full scale. 6th International Conference on Accelerated Pavement Testing, Université Gustave Eiffel, Apr 2022, Nantes, France. pp.689-698, ⟨10.1007/978-3-030-55236-7_71⟩. ⟨hal-04372798⟩
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