Driver Assistance System of Indicating Evaluation Index of Predicted Longitudinal Driving Behavior on Road Ahead Virtually

Abstract

This study examines a driver assistance system to predict driving behavior considering the pre-preceding vehicle behavior. The assistance system indicates the evaluation index on road ahead virtually to recognize longitudinal operation easily. Driving simulator experiments are carried out with several participants who are instructed to follow a preceding and a visible pre-preceding vehicles with and without the driving assistance system. The participants with the assistance system realize the driving behavior with the small relative velocity to the pre-preceding vehicle. These effects make it possible not to suppress the variation of the collision risk to the preceding vehicle and to reduce fuel consumption of the following vehicle. In addition, the proposed assistance system does not change visibility of assistance information and makes it possible to follow these vehicles with gentle acceleration in comparison with the conventional assistance system, which is indicated at the rear end of the preceding vehicle.