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Characterization of Expert Drivers' Last-Second Braking and Its Application to a Collision Avoidance System

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5 Author(s)
Wada, T. ; Kagawa Univ., Takamatsu, Japan ; Doi, S. ; Tsuru, N. ; Isaji, K.
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Expert drivers' deceleration patterns in last-second braking will be formulated using a perceptual risk index for the approach and the proximity of a preceding vehicle as examples of comfortable braking patterns. It will be shown that the formulated braking pattern can uniformly generate a smooth deceleration profile for many approach conditions. In addition, the brake initiation timing of expert drivers will be successfully formulated using a modified index. Finally, an automatic braking system for collision avoidance will be proposed based on a formulated brake-initiation model and a deceleration pattern. Twenty five expert drivers will experience the automatic braking that is installed in an experimental car. It will be shown that the proposed system can generate a smooth profile and realize secure brake patterns based on the drivers' subjective evaluation.

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Intelligent Transportation Systems, IEEE Transactions on  (Volume:11 ,  Issue: 2 )