| 摘要 |
PROBLEM TO BE SOLVED: To meet the demand for attention-seeking and travel control capable of suppressing a driver from feeling a discomfort.SOLUTION: In an attention-seeking mode, a safety threshold setting unit 27 of a travel assist device 1 sets a safety threshold allowing a lane width direction distance D to become smaller as a lane width direction velocity V with respect to a lane demarcation line 200 is lower, and an attention-seeking unit 28 seeks the attention of a driver of an own vehicle 100 if the lane width direction D is smaller than the safety threshold . The travel assist device 1 can hold down complexity for the driver since the small lane width direction distance D is allowed when the lane width direction velocity V is low. The safety threshold setting unit 27 sets the safety threshold on the basis of the history of the lane width direction distance D and the lane width direction velocity V for the travel environment of the own vehicle 100. Owing to this, this travel assist device 1 can set the safety threshold from the travel history of the driver depending on the travel environment such as a curve and seek the driver's attention in a manner that suppresses the driver from feeling a discomfort. |
