Proposal of Interface Design to Inform Predicted Driver’s Deceleration Intent to Following Car Driver

Abstract

This paper proposes and evaluates mathematical models to predict driver’s deceleration intent. Assuming a four-vehicle convoy, an unscented Kalman filter (UKF) integrated with a car-following model attempt to estimate the headway and velocity of all vehicles in the platoon. The car following model used in this research is the conventional Gazis-Herman-Rothery model (GHR model). Then, another GHR model is used to predict the deceleration intent of the preceding car based on the estimated headways and velocities of the platooning vehicles. In addition, this study proposes an interface how to inform the predicted intention to the following vehicle by using a windshield display (WSD). A numerical analysis showed that the UKF integrated with the GHR model succeeded in predicting the intention accurately. The WSD interface should be designed more precisely and driving simulator experiments will be carried out to evaluate the performance of the proposed system in the future development.