Following to the behavior choice probability which is granted

摘要

PPROBLEM TO BE SOLVED: To provide a driver risk acquisition device for accurately evaluating the risks of a driver based on an actual course of one's own vehicle. PSOLUTION: A driver risk acquisition ECU 1 calculates and acquires a plurality of predicted courses on which other vehicles around one's own vehicle are predicted to move for a certain period of time after the past predetermined period of time. The ECU also acquires the actual course that the vehicle actually runs in the past predetermined period of time. A probability of collision on the actual course is acquired based on the predicted courses and the actual course. Also, available courses that the vehicle could run in the past predetermined period of time are determined. From the available courses, the best course having the minimum probability of collision between the vehicle and other vehicles is calculated, and the probability of collision on the best course, i.e., the probability of collision with other vehicles on the best course, is determined. Based on the deviance between the probability of collision on the actual course and the probability of collision on the best course, the risks of the driver are calculated and acquired. PCOPYRIGHT: (C)2009,JPO&INPIT