Eco-driving support systems (EDSSs) are separated into two types; a direct EDSS and an indirect EDSS. The present study performed driving simulator experiments to verify the different influence of two EDSSs on proficiency in eco-driving. We discuss the results from a viewpoint of FUBEN-EKI which was proposed as a novel system design methodology, and then clarify the relationship between the degree of active effort and the proficiency of eco-driving skill.
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