Mando Corporation

Joo-Hee Son

Seong-Ho Choi

Disclosed herein is an electronic brake system. An electronic brake system according to an embodiment of the present disclosure, which is an electronic brake system including a pedal displacement sensor configured to sense displacement of a brake pedal according to a pedal effort of the brake pedal, a hydraulic pressure supply device configured to generate a hydraulic pressure using a rotational force of a motor operated by an electrical signal output from the pedal displacement sensor, and a hydraulic control unit configured to transmit a hydraulic pressure discharged from the hydraulic pressure supply device to wheel cylinders provided on respective wheels, includes a plurality of valves configured to adjust the hydraulic pressures transmitted to the wheel cylinders, a pressure measurer configured to measure hydraulic pressures of the wheel cylinders and a hydraulic pressure of the hydraulic control unit, and a controller configured to control an electromagnetic force of the valve when a difference between the measured hydraulic pressure of the wheel cylinder and the measured hydraulic pressure of the hydraulic control unit is more than a preset first threshold value during an anti-lock braking system (ABS) operation.

Electronic brake system and control method thereof

An electronic brake system includes a master cylinder connected to a reservoir, including a master chamber and a master piston provided at the master chamber, and discharging the oil according to pedal effort of a brake pedal, a sensor measuring a displacement of the brake pedal, a pedal simulator providing a reaction force according to pedal effort of the brake pedal and including a simulator chamber connected to the master cylinder, a hydraulic actuator provided between the master cylinder and a wheel cylinder and controlling a hydraulic pressure flow delivered to the wheel cylinder, a first hydraulic pressure supply device operated by an electrical signal output by corresponding to the displacement of the brake pedal, and supplying a hydraulic pressure to the hydraulic actuator, and a second hydraulic pressure supply device provided between the reservoir and the master cylinder and providing a vibration pedal feel to the brake pedal.

Growing community of inventors

Seongnam-si, South Korea

Joo-Hee Son