Apparatus for assisting driving and method thereof

1. An apparatus for assisting driving of a host vehicle, the apparatus comprising:

a first sensor mounted to the host vehicle and having a field of view in rear of the host vehicle, the first sensor configured to obtain rear image data;

a second sensor selected from a group consisting of a radar sensor and a Light Detection And Ranging (LiDAR) sensor and mounted to the host vehicle, the second sensor configured to have a field of sensing in rear of the host vehicle and obtain rear detecting data; and

a controller including a processor configured to process the rear image data and the rear detecting data,

wherein the controller is configured to:

based on processing the rear image data and the rear detecting data, determine a possibility of a collision of a rear object located at the rear of the host vehicle, and

based on the collision of the rear object being expected, adjust a seat of the host vehicle to a preset position,

wherein the controller is configured to:

determine an expected amount of impact due to the collision of the rear object based on a speed and a size of the rear object, and

based on the expected amount of impact being less than or equal to a preset value, adjust the seat of the host vehicle to the preset position, and

wherein, based on the expected amount of impact being greater than the preset value, the controller is configured to:

open a door of the host vehicle,

separate the seat from the host vehicle, and

escape the separated seat to the outside of the host vehicle through the opened door.

2. The apparatus according to claim 1 , wherein the preset position is set so that a driver of the host vehicle is in close contact with the seat.

3. The apparatus according to claim 1 , wherein the controller is configured to open the door of the host vehicle to 90 degrees or more.

4. The apparatus according to claim 1 , wherein the controller is configured to operate an airbag mounted to the seat based on escaping the separated seat to the outside of the host vehicle through the opened door.

5. The apparatus according to claim 1 , wherein the controller is configured to:

based on processing the rear detecting data, determine the speed of the rear object, and

based on processing the rear image data, determine the size of the rear object.

6. The apparatus according to claim 1 , wherein the controller is configured to control a user interface of the host vehicle to warn a driver of the collision based on the collision of the rear object being expected.

7. The apparatus according to claim 1 , further comprising:

a third sensor mounted to the host vehicle and having a field of view in front of the host vehicle, the third sensor configured to obtain front image data;

a fourth sensor selected from the group consisting of the radar sensor and the LiDAR sensor and mounted to the host vehicle, the fourth sensor configured to have a field of sensing in front of the host vehicle and obtain front detecting data; and

a fifth sensor selected from the group consisting of the radar sensor and the LiDAR sensor and mounted to the host vehicle, the fifth sensor configured to have a field of sensing in side of the host vehicle and obtain side detecting data,

wherein the controller is configured to:

based on processing the front image data, the front detecting data, and the side detecting data, search for an avoidance space to avoid the collision of the rear object, and

control the host vehicle so that the host vehicle moves to the avoidance space.

8. A method for assisting driving of a host vehicle, the method comprising:

obtaining, by a sensor, rear image data and rear detecting data of the host vehicle;

processing, by a controller, the rear image data and the rear detecting data;

determining, by the controller, a possibility of a collision of a rear object located at the rear of the host vehicle based on processing the rear image data and the rear detecting data; and

adjusting, by the controller, a seat of the host vehicle to a preset position based on the collision of the rear object being expected,

wherein the adjusting of the seat of the host vehicle to the preset position based on the collision of the rear object being expected comprises:

determining an expected amount of impact due to the collision of the rear object based on a speed and a size of the rear object; and

adjusting the seat of the host vehicle to the preset position based on the expected amount of impact being less than or equal to a preset value, and

wherein the adjusting the seat of the host vehicle to the preset position based on the collision of the rear object being expected further comprises:

based on the expected amount of impact being greater than the preset value, by controller:

opening a door of the host vehicle,

separating the seat from the host vehicle, and

escaping the separated seat to the outside of the host vehicle through the opened door.

9. The method according to claim 8 , wherein the preset position is set so that a driver of the host vehicle is in close contact with the seat.

10. The method according to claim 8 , wherein the opening of the door of the host vehicle comprises:

opening the door of the host vehicle to 90 degrees or more.

11. The method according to claim 8 , further comprising: operating, by the controller, an airbag mounted to the seat based on escaping the separated seat to the outside of the host vehicle through the opened door.

12. The method according to claim 8 , wherein the determining of the expected amount of impact due to the collision of the rear object based on the speed and the size of the rear object comprises:

determining the speed of the rear object based on processing the rear detecting data; and

determining the size of the rear object based on processing the rear image data.

13. The method according to claim 8 , further comprising:

controlling, by the controller, a user interface of the host vehicle to warn a driver of the collision in response to the collision of the rear object being expected.

14. The method according to claim 8 , further comprising:

obtaining, by the sensor, front image data, front detecting data, and side detecting data;

searching for, by the controller, an avoidance space to avoid the collision of the rear object based on processing the front image data, the front detecting data, and the side detecting data; and

controlling, by the controller, the host vehicle so that the host vehicle moves to the avoidance space.

15. An apparatus for assisting driving of a host vehicle, the apparatus comprising:

a plurality of first sensors mounted to the host vehicle and having a field of view in rear of the host vehicle, the plurality of first sensors configured to obtain rear image data;

a second sensor mounted to the host vehicle and selected from a group consisting of a radar sensor, a Light Detection And Ranging (LiDAR) sensor and an ultrasonic sensor, the second sensor configured to have a field of sensing in rear of the host vehicle and obtain rear detecting data; and

a controller including a processor configured to process the rear image data,

wherein the controller is configured to:

based on processing the rear image data, determine a possibility of a collision of a rear object located at the rear of the host vehicle, and

based on the collision of the rear object being expected, adjust a seat of the host vehicle to a preset position,

wherein the processor is configured to process the rear detecting data, and the controller is configured to,

based on processing the rear image data and the rear detecting data, determine the possibility of the collision of the rear object,

determine an expected amount of impact due to the collision of the rear object based on a speed and a size of the rear object, and

wherein, based on the expected amount of impact being greater than a preset value, the controller is configured to:

open a door of the host vehicle,

separate the seat from the host vehicle, and

escape the separated seat to the outside of the host vehicle through the opened door.