PROBLEM TO BE SOLVED: To provide an eco-driving support device for supporting the practice of eco-driving by more drivers.;SOLUTION: The eco-driving support device 100 for supporting the practice of eco-driving includes an eco-driving determination device 11 that determines whether eco-driving is performed based on a traveling state of a vehicle V1, an eco-degree calculator 12 that calculates a ratio that occupies at the total travel time of time that the eco-driving is performed as eco-degree, and an eco-degree display device 13 that displays the eco-degree calculated by the eco-degree calculator 12.;COPYRIGHT: (C)2011,JPO&INPIT
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