Research on In-Vehicle Secondary Task Analysis Model Based on Preview Theory

The behavior of secondary task has an important influence on driving safety. It is necessary to build a precise driving model for accurate analysis of the influence of a secondary task on driving performance. The vehicle preview trajectory curve and steering control strategy are based on two different preliminary aim modes - the far point and the near one. Through the adjustment of a vehicle's acceleration and deceleration according to the distance between the vehicle and the lead vehicle, a controllable method of vehicle running speed is determined, which regards the lead vehicle tail center as its tracking target. Finally, the driving model is built and the experiment shows that the model developed in this study conforms to reality better. Based on the model and the software Distract-R, successful analysis of the effect of secondary task on driving performance is achieved.