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An AFS algorithm simulating the drivers preview behavior was studied in this research.The drivers preview change rule was studied with eight male drivers at different speed and different road curvature radius by the eye tracker and an empirical formula of the preview time was proposed.The current dynamic predictive algorithm of the vehicles future track based on the drivers best preview acceleration model was modified and an AFS algorithm simulating the drivers preview behavior was proposed at the basis of it.Finally, a simulation of the algorithm was conducted, and then the algorithms control effect was verified by the analysis of the headlamps illumination area and the predicted future tracks change in the bend driving process.