Apparatus, method, computer program, and computer readable recording medium for route guidance

An apparatus for controlling autonomous lane change of a vehicle, the apparatus comprising:

• a route calculation unit;
• a communication unit performing communication with a user terminal provided in the vehicle;
• and
• a control unit obtaining destination information of the vehicle and position information of the vehicle through the communication unit, controlling the route calculation unit to calculate a driving route from a current position to a destination, and transmitting the calculated driving route to the user terminal through the communication unit,
• wherein the route calculation unit is configured to:
• when an intersection exists within in a predetermined distance on the driving route while performing the route guidance according to the calculated driving route, confirm a ranking of a search link positioned on the calculated driving route among search links exiting from an end node corresponding to the intersection;
• compare rotation direction information of the search link corresponding to the confirmed ranking of the search link with moving direction information of a lane of a lane link corresponding to the lane on which the vehicle is currently positioned;
• and
• perform lane change guidance of the vehicle according to a comparison result of the rotation direction information and the moving direction information,
• wherein the route calculation unit generates a guidance message for autonomous lane change of the vehicle.

A method for controlling autonomous lane change of a vehicle, the method comprising:

• receiving a destination from a user;
• measuring a current position of the vehicle;
• calculating a driving route from the measured current position to the destination;
• confirming a search link on which the vehicle is currently driving and a future search link connected to a current search link on which the vehicle is currently driving and positioned on the driving route, while the vehicle drives on a route according to the calculated driving route;
• confirming a moving direction from the current search link to the future search link;
• comparing the confirmed moving direction to the future search link with moving direction information of a lane on the search link on which the vehicle is currently driving;
• determining whether to change the lane of the vehicle according to a comparison result of the confirmed moving direction and the moving direction information;
• and
• generating a guidance message for autonomous lane change of the vehicle if it is necessary to change the lane,
• wherein the driving route includes at least two search links for the driving route from the measured current position to the destination.