Braking control method using predicted friction coefficient of brake pad
AssigneesHyundai Motor Company, Kia Corporation
InventorSUNG HYUN CHO
Life of this patent
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Abstract
A braking control method using a predicted friction coefficient of a brake pad in a braking apparatus, which may predict a friction coefficient of a brake pad according to the traveling situation in real time using a wheel velocity, a brake disc temperature, and a braking hydraulic pressure, may include determining a target braking torque determined using the predicted friction coefficient, and then allowing the determined target braking torque to be reflected to a real braking torque through a feedforward control, upon a hydraulic braking control for securing the traveling stability of a vehicle or upon a cooperative control between the regenerative braking and the hydraulic braking, improving the accuracy and response speed of the braking control.
Claims19
A braking control method using a friction coefficient of a brake pad in a braking apparatus including a brake disc, the braking control method comprising:
- predicting, by a controller, the friction coefficient of the brake pad changed according to a traveling situation of a vehicle;
- determining, by the controller, a target braking torque for hydraulic braking;
- determining, by the controller, a braking hydraulic pressure configured for generating the target braking torque using the predicted friction coefficient and the determined target braking torque;
- and
- controlling, by the controller, the braking hydraulic pressure which applies the determined braking hydraulic pressure to the braking apparatus.
A braking control method using a friction coefficient of a brake pad in a braking apparatus including a brake disc, the braking control method comprising:
- predicting, by a controller, the friction coefficient of the brake pad changed according to a traveling situation of a vehicle;
- determining, by the controller, a regenerative braking execution amount and an execution hydraulic braking torque for a cooperative control of a regenerative braking and a hydraulic braking of the vehicle;
- determining, by the controller, a braking hydraulic pressure configured for generating the execution hydraulic braking torque using the predicted friction coefficient and the determined execution hydraulic braking torque;
- and
- controlling, by the controller, the braking hydraulic pressure which applies the determined braking hydraulic pressure to the braking apparatus.
Dependencies are inferred from the claim text.