Vehicle control system and method of controlling vehicle

1. A vehicle control system comprising:

a controller; and

a first fob;

wherein the controller is configured to:

control a first communicator of a vehicle to transmit a deactivation signal to the first fob based on the first fob and to deactivate a transponder (TP) communication function of the vehicle being detected in the vehicle after locking the vehicle; and

the first fob including a second communicator communicating with the first communicator, the first fob configured to control the second communicator to switch at least one predetermined communication function to an inactive state based on the reception of the deactivation signal.

2. The vehicle control system of claim 1 , wherein the first fob is further configured to:

control the second communicator to deactivate communication functions except for a transponder (TP) communication function.

3. The vehicle control system of claim 1 , wherein:

the first fob is further configured to control the second communicator to deactivate a low frequency (LF) communication function and a radio frequency (RF) communication function when switched to the inactive state.

4. The vehicle control system of claim 3 , wherein the controller is further configured to:

unlock the vehicle based on an authentication of a second fob located outside the vehicle; and

control the first communicator to activate the TP communication function of the vehicle after unlocking the vehicle.

5. The vehicle control system of claim 4 , wherein the first fob is further configured to:

control the second communicator to activate the LF communication function and the RF communication function based on the TP communication with the first communicator of the vehicle.

6. The vehicle control system of claim 4 , wherein the controller is further configured to:

delete identification information of the first fob after transmitting the deactivation signal to the first fob; and

store the identification information of the first fob based on the TP communication with the first fob after unlocking the vehicle by the authentication of the second fob.

7. A method of controlling a vehicle, the method comprising:

controlling a first communicator of the vehicle to transmit a deactivation signal to a first fob and to deactivate a transponder (TP) communication function of the vehicle based on the first fob being detected in the vehicle after locking the vehicle; and

controlling a second communicator of the first fob to switch at least one predetermined communication function of the first fob to an inactive state based on the deactivation signal.

8. The method of claim 7 , wherein controlling the second communicator of the first fob further comprises:

deactivating communication functions except for a transponder (TP) communication function of the first fob.

9. The method of claim 7 , wherein

wherein controlling the second communicator of the first fob further comprises:

deactivating a low frequency (LF) communication function and a radio frequency (RF) communication function of the first fob.

10. The method of claim 9 , further comprising unlocking the vehicle based on an authentication of a second fob located outside the vehicle, wherein controlling the first communicator of the vehicle further comprises activating the TP communication function of the vehicle after unlocking the vehicle.

11. The method of claim 10 , wherein controlling the second communicator of the first fob further comprises:

activating the LF communication function and the RF communication function of the first fob based on the TP communication with the first communicator of the vehicle.

12. The method of claim 10 , further comprising:

deleting identification information of the first fob stored in a controller of the vehicle after transmitting the deactivation signal to the first fob; and

storing the identification information of the first fob in the controller based on the TP communication between the first communicator of the vehicle and the first fob after unlocking the vehicle by the authentication of the second fob.