Abstract
A new type of quick charging plug-in electric boat named "RAICHO-I" has been created by Tokyo University of Marine Science and Technology. "RAICHO-I" is the first electric boat adopted CHAdeMO standard which is the standard of quick charging method for electric vehicles in Japan. However, the operational time, speed and distance of electric boats are restricted since the loaded battery is limited because of cost, weight, etc. A Navigation Support System (NSS), which gives the remaining operational time, a possible cruising distance etc, is one of important technologies of electric boats from the view point of the operational safety. In this paper, algorithms to estimate the state of charge, the remaining operational time etc for NSS is proposed. The algorithm to obtain the recommended speed in order to cruise the desired distance is also proposed.
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