Abstract
This paper is concerned with a driver model of heavy duty vehicle for longitudinal control, using the multiple regression analysis. Firstly as a longitudinal control, modeling of a fore-and-aft operation is constructed for each gear based on experiment data for heavy duty vehicle. Next, the gear change model is constructed to select a longitudinal control model. Using the factor analysis for the model, the relationship between input and output is analyzed. Finally, it is found that the driver's control for longitudinal direction is described using this driver model.