Apparatus and method for controlling lane change considering priority

1. An apparatus for controlling a lane change, the apparatus comprising:

a processor for: 1) checking, before or during a lane change of an ego-vehicle, whether or not there is an object vehicle having a collision possibility that attempts to change a lane from a region of an interest road corresponding to an ego-road on which the ego-vehicle is being driven to a target road to which the ego-vehicle changes lanes; 2) determining a priority vehicle that first performs the lane change among the ego-vehicle and the object vehicle, based on at least one of accessibility to the target road of the ego-vehicle and the object vehicle when the object vehicle is detected, and accessibility to a join point when the object vehicle or the ego-vehicle is positioned on a road to be joined; and 3) informing a driver of a danger of the lane change when the ego-vehicle is not the priority vehicle.

2. The apparatus of claim 1 , wherein the processor informs surrounding vehicles of a lane change intention and of information of the target road through Vehicle to Vehicle (V2V) communication before attempting the lane change.

3. The apparatus of claim 1 , wherein the processor includes one or more of a blind spot detection system and a lane keep assistance system.

4. The apparatus of claim 1 , wherein the processor checks whether or not there is an object vehicle having the collision possibility based on information received from at least one sensor selected from the group consisting of a lidar, a radar and a camera.

5. The apparatus of claim 1 , wherein the processor informs the object vehicle of a reason of a lane change through the vehicle to vehicle communication when the object vehicle is detected.

6. The apparatus of claim 5 , wherein when the reason of the lane change is received from the object vehicle, the processor determines the priority vehicle among the ego-vehicle and the object vehicle considering a preset priority of the reason of the lane change.

7. The apparatus of claim 5 , wherein when the object vehicle does not receive the reason of the lane change, or the reasons of the lane change of the ego-vehicle and the object vehicle have the same priority, the processor determines the priority vehicle based on the accessibility to the target road checked and the accessibility to the join point in accordance with information received from a sensor.

8. A method for controlling a lane change by a processor, the method comprising:

checking, by the processor before or during a lane change of an ego-vehicle, whether or not there is an object vehicle having a collision possibility that attempts to change lanes from a region of interest road corresponding to an ego-road on which the ego-vehicle is being driven to a target road; and

determining, by the processor, a priority vehicle that first performs the lane change among the ego-vehicle and the object vehicle considering at least one of accessibility to the target road when the object vehicle is detected, and accessibility to a join point when the object vehicle or the ego-vehicle is positioned on a road to be joined; and

informing, by the processor, a driver of a danger of the lane change when the ego-vehicle is not the priority vehicle.

9. The method according to claim 8 , further comprising informing, by the processor, surrounding vehicles of a lane change intention and of information of the target road through Vehicle to Vehicle (V2V) communication before attempting the lane change.

10. The method according to claim 8 , wherein the step of checking whether or not there is an object vehicle having the collision possibility includes checking whether or not there is an object vehicle having the collision possibility based on information received from at least one sensor selected from the group consisting of a lidar, a radar and a camera.

11. The method according to claim 8 , further comprising informing the object vehicle of a reason of a lane change through the vehicle to vehicle communication when the object vehicle is detected.

12. The method according to claim 11 , wherein the step of determining the priority vehicle includes determining the priority vehicle among the ego-vehicle and the object vehicle considering a preset priority of the reason of the lane change when the reason of the lane change is received from the object vehicle.

13. The method according to claim 11 , wherein the step of determining the priority vehicle includes determining the priority vehicle considering at least one of the accessibility to the target road of the ego-vehicle and the object vehicle and the accessibility to the join point when the object vehicle does not receive the reason of the lane change, or determining the reasons of the lane change of the ego-vehicle and the object vehicle have the same priority.