Electronic brake system and control method therefor

An electronic brake system, comprising:

• a master cylinder connected to a brake pedal;
• a hydraulic pressure supply device comprising a motor that generates a rotational force and a hydraulic piston movably accommodated in a pressure chamber, and configured to generate a hydraulic pressure by a movement of the hydraulic piston;
• a hydraulic control unit configured to control a flow of the hydraulic pressure transferred to a wheel cylinder from the hydraulic pressure supply device;
• a hydraulic block in which the master cylinder, the hydraulic pressure supply device and the hydraulic control unit are integrated;
• and
• a controller configured to control the motor and the hydraulic control unit,
• wherein, the controller is configured to, during an anti-lock braking system (ABS) operation, add an excitation current for exciting the motor to a current for controlling a speed of the motor such that the motor is vibrated by the excitation current added to the current for controlling the speed of the motor, and transmit vibration, generated by the motor's being vibrated by the excitation current added to the current for controlling the speed of the motor, to the brake pedal through the hydraulic block in which the motor and the brake pedal are jointly mounted to notify a driver of the ABS operation.