Traveling control method and traveling control device for vehicle

A travel control method for a vehicle for presenting the vehicle traveling on a route to a preliminarily set destination with overtaking information as to whether or not to accept execution of an overtaking assist function for overtaking a preceding vehicle by changing lanes through autonomous travel control, the travel control method comprising:

• when a route traveling assist function of controlling the vehicle to autonomously travel along the route is executed, setting a first presentation prohibition distance as a presentation prohibition distance for the overtaking information;
• when a navigation function of presenting the route and guiding to the preliminarily set destination is executed, setting a second presentation prohibition distance shorter than the first presentation prohibition distance as the presentation prohibition distance;
• detecting a position of the vehicle on the route;
• and
• detecting whether or not there is a traveling direction change point on the route ahead of the position of the vehicle, the traveling direction change point being a point at which the vehicle is required to change its traveling direction,
• wherein when a distance from the vehicle to the traveling direction change point is shorter than the presentation prohibition distance, the presentation of the overtaking information is not performed, and
• when neither the navigation function nor the route traveling assist function is executed, setting a third presentation prohibition distance shorter than the second presentation prohibition distance as the presentation prohibition distance.

A travel control apparatus for a vehicle, configured to:

• present overtaking information as to whether or not to accept execution of an overtaking assist function for overtaking a preceding vehicle by changing lanes through autonomous travel control of the vehicle traveling on a route to a preliminarily set destination;
• when a route traveling assist function of controlling the vehicle to autonomously travel along the route is executed, set a first presentation prohibition distance as a presentation prohibition distance for the overtaking information;
• when the route traveling assist function is not executed, a driver performs a manual steering of the vehicle and a navigation function of presenting the route and guiding to the preliminarily set destination is executed, set a second presentation prohibition distance shorter than the first presentation prohibition distance as the presentation prohibition distance;
• detect a position of the vehicle on the route;
• detect whether or not there is a traveling direction change point on the route ahead of the position of the vehicle, the traveling direction change point being a point at which the vehicle is required to change its traveling direction;
• and
• when a distance from the vehicle to the traveling direction change point is shorter than the presentation prohibition distance, not perform the presentation of the overtaking information.