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This paper presents a hierarchical modeling strategy of the driving behavior based on the multiple levels of abstraction of the underlying dynamics. In order to realize this idea, a new mathematical model, Hierarchical PieceWise ARX model (Hi-PWARX model) is proposed. The identification scheme for the Hi-PWARX model is developed by synthesizing the ideas of a feature vector definition revealing the...
In order to develop more effective automatic braking system or other braking support system, comfort of drivers should be taken into account. In this paper, deceleration behaviors of an expert driver in car following will be formulated as an example of comfortable braking behavior. The difficulty of its formulation is how to extract characteristics of the deceleration behavior. Expert driverpsilas...
Deceleration patterns of an expert driver will be formulated as an example of comfortable braking pattern. The difficulty of its formulation is how to extract characteristics of the deceleration behavior. This research focuses on visual control of vehicles in car following. We have hypothesized that driver evaluate risk of collision based on the area change of the preceding car on the retina and determines...
A new index have been proposed to evaluate danger situation in car following based on the hypothesis that drivers evaluate collision risk for preceding car and decide braking behavior with change of area of a preceding car on the retina. Based on the index, braking behaviors in car following situation is analyzed. Decelerating profile of a test driver is modeled using the proposed index and the gap...
A new index is proposed to evaluate danger situation in car following based on the hypothesis that drivers are performing approach detection and deciding braking behavior with change of area of a preceding car on the retina. Based on the index, braking behaviors in car following situation is analyzed. The experimental results of a test driver with a real car with constant relative velocity to preceding...
A performance index for approach and alienation that estimates driver's status such as inattentive operation from the vehicles behavior as a result of the driver's visual cognition, judgment, and operation have been proposed to prevent rear-end crashes. The index is based on the hypothesis that drivers are performing approach detection and deciding braking behavior with change of area of a preceding...
MnSb(0001) epitaxial layers were grown on Si(111) substrates by hot-wall epitaxy, and the growth condition dependence of the structural properties of the layers was examined. The crystalline quality and lattice constants of the layers depend on the growth conditions. TEM observation reveals that thin interfacial crystalline layers are generated between the MnSb layer and Si substrate. The MnSb layer...
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