Granted Patent B2

US 12,583,449 · App. 18/368,546 · Granted Mar 24, 2026

Inventor: Hyuntae Cho (Seoul, KR)

Assignee: HL MANDO CORPORATION

B60W30/146B60W2510/0657B60W2510/1005B60W2520/10B60W2530/10B60W2530/20B60W2710/18B60W2720/106

Abstract

Claims (42)

1 . A driver assistance apparatus comprising:

a front sensor installed in a vehicle and having a field of sensing in front of the vehicle; and

a controller configured to process data obtained by the front sensor,

wherein the controller is configured to:

determine whether the vehicle is in a situation in which deceleration is required in response to the processing of the data of the front sensor when adaptive cruise control (ACC) is in an activated state;

maintain a braking torque required for the deceleration so that the vehicle is not pushed during braking when the vehicle is in the situation in which the deceleration is required; and

compensate for a decrease in the braking torque so that the braking torque is maintained when shift-down of a transmission of the vehicle occurs in the situation in which the deceleration is required by determining an amount of change in acceleration by the shift-down of the transmission and by determining a compensation value of the braking torque based on the determined amount of change in acceleration.

2 . The driver assistance apparatus according to claim 1 , wherein the controller is configured to determine whether a gear stage of the transmission of the vehicle is a predetermined gear stage or lower when the ACC is in the activated state.

3 . The driver assistance apparatus according to claim 2 , wherein the controller is configured to check whether the shift-down of the transmission has occurred when the gear stage of the transmission is the predetermined gear stage or lower.

4 . The driver assistance apparatus according to claim 2 , wherein the controller is configured to determine whether the gear stage of the transmission of the vehicle is the predetermined gear stage or lower when a driving speed of the vehicle is a predetermined speed or lower in the state where the ACC is activated.

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

determine the amount of change in acceleration by the shift-down of the transmission; and

determine the compensation value of the braking torque based on the determined amount of change in acceleration, a weight of the vehicle, and a dynamic radius of a tire.

6 . The driver assistance apparatus according to claim 1 , wherein the controller is configured to:

determine the amount of change in acceleration by the shift-down of the transmission; and

determine the compensation value of the braking torque in proportion to the determined amount of change in acceleration, a weight of the vehicle, and a dynamic radius of a tire.

7 . A driver assistance method comprising:

obtaining data through a front sensor having a field of sensing in front of a vehicle;

processing the data obtained from the front sensor;

determining whether the vehicle is in a situation in which deceleration is required in response to the processing of the data of the front sensor when adaptive cruise control (ACC) is in an activated state; and

maintaining a braking torque required for the deceleration so that the vehicle is not pushed during braking when the vehicle is in the situation in which deceleration is required,

wherein the maintaining of the braking torque includes compensating for a decrease in the braking torque so that the braking torque is maintained when shift-down of a transmission of the vehicle occurs in the situation in which the deceleration is required, and

wherein the compensating of the decrease in the braking torque includes:

determining an amount of change in acceleration by the shift-down of the transmission; and

determining a compensation value of the braking torque based on the determined amount of change in acceleration.

8 . The driver assistance method according to claim 7 , further comprising:

determining whether a gear stage of the transmission of the vehicle is a predetermined gear stage or lower when the ACC is in the activated state; and

checking whether shift-down of the transmission has occurred when the gear stage of the transmission is the predetermined gear stage or lower.

9 . The driver assistance method according to claim 8 , wherein the determining of whether the gear stage of the transmission of the vehicle is the predetermined gear stage or lower includes determining whether the gear stage of the transmission of the vehicle is the predetermined gear stage or lower when a driving speed of the vehicle is a predetermined speed or lower in the state where the ACC is activated.

10 . The driver assistance method according to claim 7 , wherein the compensating of the decrease in the braking torque includes:

determining the amount of change in acceleration by the shift-down of the transmission; and

determining the compensation value of the braking torque based on the determined amount of change in acceleration, a weight of the vehicle, and a dynamic radius of a tire.

11 . The driver assistance method according to claim 7 , wherein the compensating of the decrease in the braking torque includes:

determining the amount of change in acceleration by the shift-down of the transmission; and

determining the compensation value of the braking torque in proportion to the determined amount of change in acceleration, a weight of the vehicle, and a dynamic radius of a tire.

12 . A driver assistance apparatus comprising:

a front sensor installed in a vehicle and having a field of sensing in front of the vehicle; and

a controller configured to process data obtained by the front sensor,

wherein the controller is configured to:

determine whether the vehicle is in a situation in which deceleration is required in response to the processing of the data of the front sensor when adaptive cruise control (ACC) is in an activated state;

maintain an actual braking torque required for the deceleration so that the vehicle is not pushed during braking when the vehicle is in the situation in which the deceleration is required; and

compensate a target braking torque for a decrease in the actual braking torque so that the actual braking torque is maintained when shift-down of a transmission of the vehicle occurs in the situation in which the deceleration is required.

Assignments (1)

Priority Claims (2)

Continuity (1)

References Cited (17)