Apparatus and method for providing notification of control authority transition in vehicle

1. An apparatus for providing a notification of control authority transition in a vehicle, the apparatus comprising:

a speaker configured to output a sound notification;

a vibration motor configured to output a vibration notification; and

a control circuit electrically connected to the speaker and the vibration motor and configured to:

output a first notification using the speaker during a first time interval when a situation to hand over control authority for the vehicle occurs;

output a second notification using the speaker and the vibration motor during a second time interval after the first time interval elapses under the situation;

output a third notification using the speaker and the vibration motor during a third time interval after the second time interval elapses under the situation; and

adjust a length of at least a portion of the first time interval, the second time interval, or the third time interval based on at least one of a speed of the vehicle, traffic in a road where the vehicle is traveling, or a lane recognizing quality value when the control authority of the vehicle is transferred.

2. The apparatus of claim 1 , wherein the control circuit is configured to:

transfer the control authority of the vehicle to a driver of the vehicle when an input for the control authority transition is received from the driver during an output of the first notification, the second notification, or the third notification.

3. The apparatus of claim 1 , wherein the control circuit is configured to:

control a behavior of the vehicle corresponding to a predetermined minimum risk maneuver (MRM) when the control authority of the vehicle is not transferred to a driver of the vehicle during the output of the first notification, the second notification, and the third notification.

4. The apparatus of claim 3 , wherein the apparatus further comprises:

a power seat,

wherein the control circuit is configured to:

adjust the power seat to a predetermined location with the output of the third notification when the predetermined MRM is initiated.

5. The apparatus of claim 1 , wherein an intensity of the sound notification included in each of the first notification, the second notification, and the third notification is adjusted based on a speed of the vehicle.

6. The apparatus of claim 1 , wherein:

the sound notification in the second notification is greater in frequency than the sound notification in the first notification; and

the sound notification in the third notification is greater in frequency than the sound notification in the second notification.

7. The apparatus of claim 1 , wherein the vibration notification in the third notification is greater in intensity than the vibration notification in the second notification.

8. The apparatus of claim 1 , wherein the control circuit is configured to:

set the first time interval, the second time interval, and the third time interval to be the same as one another when the speed of the vehicle is less than a first predetermined value.

9. The apparatus of claim 1 , wherein the control circuit is configured to:

set the second time interval and the third time interval to be longer than the first time interval when the speed of the vehicle is greater than or equal to a first predetermined value.

10. The apparatus of claim 1 , wherein the control circuit is configured to:

set the first time interval, the second time interval, and the third time interval to be the same as the one another when the traffic is lower than a second predetermined value.

11. The apparatus of claim 1 , wherein the control circuit is configured to:

set the second time interval and the third time interval to be longer than the first time interval when the traffic is higher than or equal to a second predetermined value.

12. The apparatus of claim 1 , wherein the control circuit is configured to:

set the third time interval to be longer than the first time interval and the second time interval when the lane recognizing quality value is less than a third predetermined value.

13. The apparatus of claim 1 , wherein a sum of the first time interval, the second time interval, and the third time interval corresponds to a fourth predetermined value.

14. A method for providing a notification of control authority transition in a vehicle, the method comprising:

outputting, by a speaker, a first notification during a first time interval when a situation to hand over control authority for the vehicle occurs;

outputting, by the speaker and a vibration motor, a second notification during a second time interval after the first time interval elapses under the situation; and

outputting, by the speaker and the vibration motor, a third notification during a third time interval after the second time interval elapses under the situation,

wherein a length of at least a portion of the first time interval, the second time interval, or the third time interval is adjusted by a control circuit based on at least one of a speed of the vehicle, traffic in a road where the vehicle is traveling, or a lane recognizing quality value when the control authority of the vehicle is transferred.

15. The method of claim 14 , wherein the method further comprises:

transferring, by a control circuit, the control authority of the vehicle to a driver of the vehicle when an input for the control authority transition is received from the driver during an output of the first notification, the second notification, or the third notification.

16. The method of claim 14 , wherein the method further comprises:

controlling, by the control circuit, a behavior of the vehicle corresponding to a predetermined minimum risk maneuver (MRM) when the control authority of the vehicle is not transferred to a driver of the vehicle during the output of the first notification, the second notification, and the third notification.

17. The method of claim 16 , wherein the method further comprises:

adjusting, by the control circuit, a power seat included in the vehicle to a predetermined location with the output of the third notification when the predetermined MRM is initiated.

18. The method of claim 14 , wherein a sum of the first time interval, the second time interval, and the third time interval corresponds to a predetermined value.