Vehicle, and controlling method thereof

1. A vehicle comprising:

a UWB (ultra-wideband) module configured to receive a UWB signal transmitted from a smart key; and

a Bluetooth module configured to receive a Bluetooth signal transmitted from the smart key;

a controller configured to:

determine a location of the smart key based on the UWB signal received through the UWB module;

control the UWB module to stop UWB communication after a first reference time has elapsed from a point of time at which the UWB module starts communication; and

control the UWB module to restart the UWB communication after a second reference time has elapsed from a point of time at which the UWB module stops communication;

wherein the controller is configured to control the UWB module to start the UWB communication at a point of time at which a reception of the Bluetooth signal starts and to control the UWB module to stop the UWB communication in response to the smart key being outside a region with a preset range from the vehicle at a point of time at which the reception of the Bluetooth signal is disconnected.

2. The vehicle according to claim 1 , wherein the controller is configured to control the UWB module to stop the UWB communication after the first reference time has elapsed from a point of time at which the UWB module restarts communication.

3. The vehicle according to claim 2 , wherein the controller is configured to change the first reference time and the second reference time based on a distance between the smart key and the vehicle at the point of time at which the UWB module restarts communication.

4. The vehicle according to claim 3 , wherein the controller is configured to decrease the first reference time and increase the second reference time as the distance between the smart key and the vehicle at the point of time at which the UWB module restarts communication increases.

5. The vehicle according to claim 2 , wherein the controller is configured to:

set a plurality of reference regions with a preset range from the vehicle; and

determine the first reference time and the second reference time based on a reference region of the plurality of reference regions where the smart key is located at the point of time at which the UWB module restarts communication.

6. The vehicle according to claim 5 , wherein the controller is configured to decrease the first reference time corresponding to the reference region and increase the second reference time as the reference region is located farther away from the vehicle.

7. The vehicle according to claim 5 , wherein the controller is configured to set the plurality of reference regions based on a reception state of the UWB communication at the point of time at which the UWB module starts communication.

8. The vehicle according to claim 1 , wherein the controller is configured to control the UWB module to stop the UWB communication after a third reference time has elapsed from the point of time at which the UWB module starts communication.

9. A method for controlling a vehicle, the method comprising:

receiving a UWB (ultra-wideband) signal transmitted from a smart key by a UWB module;

determining a location of the smart key based on the UWB signal;

controlling the UWB module to stop UWB communication after a first reference time has elapsed from a point of time at which the UWB module starts communication;

controlling the UWB module to restart the UWB communication after a second reference time has elapsed from a point of time at which the UWB module stops communication;

receiving a Bluetooth signal transmitted from the smart key;

controlling the UWB module to start the UWB communication at a point of time at which a reception of the Bluetooth signal starts; and

controlling the UWB module to stop the UWB communication in response to the smart key being outside a region having a preset range from the vehicle at a point of time at which the reception of the Bluetooth signal is disconnected.

10. The method according to claim 9 , further comprising controlling the UWB module to stop the UWB communication after the first reference time has elapsed from a point of time at which the UWB module restarts communication.

11. The method according to claim 10 , further comprising changing the first reference time and the second reference time based on a distance between the smart key and the vehicle at the point of time at which the UWB module restarts communication.

12. The method according to claim 11 , wherein changing the first reference time and the second reference time includes decreasing the first reference time and increasing the second reference time as the distance between the smart key and the vehicle at the point of time at which the UWB module restarts communication increases.

13. The method according to claim 10 , further comprising:

setting a plurality of reference regions having a preset range from the vehicle; and

determining the first reference time and the second reference time based on a reference region of the plurality of reference regions where the smart key is located at the point of time at which the UWB module restarts communication.

14. The method according to claim 13 , wherein determining the first reference time and the second reference time includes decreasing the first reference time corresponding to the reference region and increasing the second reference time as the reference region is located further away from the vehicle.

15. The method according to claim 13 , further comprising setting the plurality of reference regions based on a reception state of the UWB communication at the point of time at which the UWB module starts communication.

16. The method according to claim 9 , further comprising controlling the UWB module to stop the UWB communication after a third reference time has elapsed from the point of time at which the UWB module starts communication.

17. A vehicle comprising:

a Bluetooth module;

a plurality of UWB (ultra-wideband) modules;

a processor; and

a non-transitory memory storing a program that, when executed by the processor, causes the processor to:

determine a location of a smart key based on a UWB signal received through the UWB module;

control the UWB module to stop UWB communication after a first reference time has elapsed from a point of time at which the UWB module starts communication;

control the UWB module to restart the UWB communication after a second reference time has elapsed from a point of time at which the UWB module stops communication; and

control the UWB module to start the UWB communication at a point of time at which a reception of a Bluetooth signal at the Bluetooth module starts; and

control the UWB module to stop the UWB communication in response to the smart key being outside a region with a preset range from the vehicle at a point of time at which the reception of the Bluetooth signal is disconnected.

18. The vehicle according to claim 17 , wherein the program causes the processor to control the UWB module to stop the UWB communication after the first reference time has elapsed from a point of time at which the UWB module restarts communication.

19. The vehicle according to claim 18 , wherein the program causes the processor to change the first reference time and the second reference time based on a distance between the smart key and the vehicle at the point of time at which the UWB module restarts communication.

20. The vehicle according to claim 18 , wherein the program causes the processor to:

set a plurality of reference regions with a preset range from the vehicle; and

determine the first reference time and the second reference time based on a reference region of the plurality of reference regions where the smart key is located at the point of time at which the UWB module restarts communication.