Driver assistance apparatus and method for maintaining and compensating braking torque in adaptive cruise control
AssigneeHl Mando Corporation
InventorHyuntae Cho
Life of this patent
Estimating the term…
Abstract
A driver assistance apparatus includes 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, and 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 and 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.
Claims12
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.
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.
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.
Dependencies are inferred from the claim text.