Braking control system and method for vehicle
A braking control system and a method for a vehicle are provided. The braking control method includes sensing, by a controller, a rear-side collision risk and a lane change and determining a lane change intention based on a steering change of a vehicle. In addition, the controller is configured to determine a braking control for the vehicle and a magnitude of the braking control for the vehicle based on the rear-side collision risk and the lane change, and the lane change intention.
1. A braking control system for a vehicle, the system comprising:
a radar configured to collect sensing information to sense a rear-side collision risk;
an imaging device configured to collect information to sense a lane change; and
a controller configured to:
determine a lane change intention based on a degree of a steering change of the vehicle during the rear-side collision risk and the lane change;
operate a steering device to adjust the steering change of the vehicle; and
adjust a magnitude of an auto-brake control and a magnitude of a braking control time for the vehicle by a braking device according to the lane change intention.
2. The braking control system for a vehicle of claim 1 , further comprising:
a vehicle speed sensor configured to sense a vehicle speed,
wherein the controller is configured to automatically brake the vehicle when the speed of the vehicle is a predetermined speed or greater, and stop the automatic braking when the speed of the vehicle is less than the predetermined speed.
3. The braking control system for a vehicle of claim 1 , wherein the controller is configured to reduce the braking control time for the vehicle to a predetermined magnitude or less based on the lane change intention.
4. The braking control system for a vehicle of claim 1 , wherein the controller is configured to adjust a magnitude of an amount of side brake during the automatic braking based on the lane change intention.
5. A braking control method of a braking control system for a vehicle, the method comprising:
sensing, by a controller, a rear-side collision risk collected by a radar and a lane change sensed by an imaging device;
determining, by the controller, a lane change intention based on a steering change of the vehicle collected by a steering device;
determining, by the controller, a braking control for the vehicle;
operating, by the controller, the steering device to adjust the steering change of the vehicle; and
adjusting, by the controller, a magnitude of the braking control and magnitude of a braking control time for the vehicle based on the rear-side collision risk and the lane change, and the lane change intention.
6. The method of claim 5 , further comprising:
sensing, by the controller, a vehicle speed,
automatically braking, by the controller, the vehicle when the speed of the vehicle is a predetermined speed or greater; and
stopping, by the controller, the automatic braking of the vehicle when the speed of the vehicle is less than the predetermined speed.
7. The method of claim 5 , further comprising:
adjusting, by the controller, at least one of the magnitude of braking control time for the vehicle and a magnitude of amount of side brake during the automatic braking based on the lane change intention.
8. The method of claim 7 , further comprising:
reducing, by the controller, the braking control time for the vehicle to a predetermined magnitude or less in response to determining a lane change intention.
9. The method of claim 5 , further comprising:
stopping, by the controller, the automatic braking of the vehicle when a rear collision risk of the vehicle is reduced to a predetermined magnitude or less due to an acceleration;
stopping, by the controller, the automatic braking of the vehicle when the vehicle returns to an original lane based on an operation of the steering device; and
stopping, by the controller, the automatic braking of the vehicle when the operation of a steering device having a predetermined magnitude or greater is generated.