Abstract
This paper presents the development of the modeling of human driving behavior based on a mode segmentation of the measured driving data. In our modeling, a relationship between the diver's sensory information and the output of driver is expressed by the piecewise ARX (PWARX) model, which can represent wide variety of dynamical characteristics by assigning different ARX models to different modes. By introducing the PWARX model, it becomes possible to find not only parameters appearing in the operation in each mode but also parameters in the logical switching (decision making) conditions between modes from the measured driving data. Furthermore, the obtained model is exploited for the design of assist system.