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US 12,759,409 B2Granted
Electrified vehicle and regenerative braking control method thereof
AssigneesHyundai Motor Company, Kia Corporation
InventorsSun Young Park, Jun Hyeong Jo, Sung Deok Kim, Sang Hyeok Mo
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Abstract
A vehicle and a control method thereof are capable of determining the presence of a downhill road and a deceleration zone ahead, determining the final regenerative braking torque based on the torque required for regenerative braking on the downhill road and deceleration zone, and performing regenerative braking based on the final regenerative braking torque.
Claims15
A method for controlling regenerative braking of a vehicle, the method comprising:
- determining, by a controller, a first regenerative braking torque based on recognition of a downhill road;
- determining a second regenerative braking torque based on recognition of a deceleration driving zone ahead;
- determining a larger of the first regenerative braking torque and the second regenerative braking torque as a final regenerative braking torque;
- and
- performing regenerative braking based on the final regenerative braking torque;
- wherein determining the first regenerative braking torque comprises:
- determining first regenerative braking entry conditions;
- and
- determining the first regenerative braking torque based on the first regenerative braking entry conditions being satisfied;
- wherein determining the first regenerative braking entry conditions includes:
- determining whether the first regenerative braking entry conditions are satisfied based on at least one of whether a smart regenerative brake function is activated, whether the vehicle is coasting on a downhill road, whether a stop or acceleration signal is received, and whether the vehicle speed exceeds a predetermined target speed;
- and
- wherein the target speed is determined based on the vehicle speed at a time when brake pedal operation ceases.
10 more elements
A vehicle comprising:
- a drive motor connected to driving wheels;
- and
- a controller configured to determine whether a downhill road and a deceleration zone exists ahead, determine a first regenerative braking torque based on recognition of the downhill road and a second regenerative braking torque based on recognition of the deceleration zone ahead, determine a larger of the first regenerative braking torque and the second regenerative braking torque as a final regenerative braking torque, and control the drive motor based on the final regenerative braking torque;
- wherein the controller is configured to determine first regenerative braking entry conditions, and based on the first regenerative braking entry conditions being satisfied, is configured to determine the first regenerative braking torque;
- and
- wherein the controller is further configured to determine whether the first regenerative braking conditions are satisfied based on whether the first regenerative braking entry conditions are satisfied based on at least one of whether a smart regenerative brake function is activated, whether the vehicle is coasting on a downhill road, whether a stop or acceleration signal is received, and whether the vehicle speed exceeds a predetermined target speed, the predetermined target speed being determined based on the vehicle speed at a time when brake pedal operation ceases.
3 more elements
Dependencies are inferred from the claim text.