FUEL EFFICIENCY INFORMATION MANAGEMENT SERVER, FUEL EFFICIENCY INFORMATION MANAGEMENT SYSTEM, AND FUEL EFFICIENCY INFORMATION MANAGEMENT METHOD

摘要

Provided are a server, a system and a method by which a utility value of information relating to fuel efficiency of a vehicle can be improved. A fuel efficiency information management server (100) functions so that a driver of a vehicle or a third party is informed of not only a fuel efficiency of the same vehicle or a vehicle driven by the same driver but also a temporal variation of an eco-index, through a system of eco-information. The eco-index is a conversion result of a travel state factor serving as a variation factor of the fuel efficiency at the time when the fuel efficiency is achieved.