Conductive electric road systems are charging in-frastructures that allow electric vehicles to charge while driving. Similar to that of trolleybuses, trams and metro trains conductive electric roads use a physical sliding contact to facilitate the energy transfer between vehicle and road supply. However, as conductive electric roads introduce a new application for the sliding contact, knowledge is scarce on both current collector design as well as the electrical properties of the sliding contact. This paper presents measurements of the currents in the current collector as well as voltage drop and contact resistance across the sliding contact, conducted on an electric road demonstrator. The results reveal the benefits and drawbacks of a current collector design with multiple contacts points as well as provide a range of magnitude in contact resistance for the sliding contact.
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Wenander et al. (2024) studied this question.
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