Proposal of an eco-driving assist system adaptive to driver´s skill

The purpose of the present study is to develop an eco-driving assist system that is adaptive to a driver´s skill and to demonstrate its effectiveness. The eco-driving assist system consists of a visual indicator illustrating the eco-driving. In the proposed adaptive system, the resolution of the indicator and the threshold of eco-driving are changed to adapt to the driver´s skill. The proposed eco-driving system was installed in a driving simulator. Changes in driving behavior and the corresponding eco-driving scores, measured over five days, were investigated. As a comparison, experiments were conducted on a system without any level changes (a non-adaptive system) and on one without any assist system. In the results, eco-driving scores were higher with the assist systems than without them. The score with the adaptive system increased through the trial days, while no clear tendency was found with the non-adaptive system.