Study on Safe Distance for the Automotive Collision Warning System Based on Human-Vehicle-Environment

Abstract

In order to improve the effectiveness and practicability of the car anti-collision system, a model of the safety distance between two cars took into account human, vehicle and environment was presented in the paper. Firstly, a general automobile safety distance calculation model based on the braking process was derived, and an algorithm of estimating safe running state on vehicle was presented, which includes the comprehensive factors that influence the vehicle safety travel. Then the general automobile safety distance model was corrected and regulated according to the state of driving safety. At last, the method was verified by the simulation experiments. Experimental results indicate that the algorithm was more consistent with the driver individual characteristic and the actual situation of vehicle and road, and the driver had the most impact.