| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle traveling support apparatus configured to improve accuracy of calculating a deceleration distance, which is an estimated value of a travel distance to be required when a relative speed of a vehicle is regulated to be equal to or lower than a prescribed speed.SOLUTION: On the assumption that brake control is started from this moment in time, a collision avoidance ECU calculates an idle running distance X0 that a vehicle can travel by a first time point where a relative deceleration Gr increases when deceleration control is started from the moment in time, an increasing travel distance X1 that the vehicle can travel from the first time point to a second time point where the relative deceleration Gr reaches a target relative deceleration At, and an increased travel distance X2 that the vehicle can travel from the second time point to a time point where a relative speed Vr is equal to or lower than a prescribed speed Vth. On the basis of the sum of the distances X0, X1, and X2, a deceleration distance Xth is derived. |
