Provided are an electromechanical brake and a vehicle including the same. An electromechanical brake according to an embodiment of the present disclosure includes a first brake pad and a second brake pad configured to respectively press a front surface and a rear surface of a disc and includes a housing having one side to which the first brake pad is coupled, a carrier to which the second brake pad is fixed, the carrier being coupled to the housing so that the second brake pad advance or retreat toward the disc, a hollow motor installed on the housing and configured to provide rotational driving power, the hollow motor having an internal space penetratively formed in a direction in which the rotation axis extends, a rotary screw extending and disposed in the internal space, the rotary screw being configured to rotate about the rotation axis of the motor, a power train coupled to a rear side of the motor and configured to transmit the rotational driving power of the motor to the rotary screw, and a nut coupled to the rotary screw and configured to advance or retreat toward the second brake pad.

A brake apparatus for a vehicle may include: a drive part configured to generate driving power; a pair of pressing parts configured to receive the driving power from the drive part and to apply or release a braking force; a load transmission part installed between the pair of pressing parts and configured to transmit a pressing load of any one of the pair of pressing parts to the other pressing part of the pair of pressing parts; and a load transmission restricting part configured to selectively restrict an operation of the load transmission part by pressing the load transmission part.

A brake system may include an actuating device, in particular a brake pedal; a first piston-cylinder unit having two pistons subjecting the brake circuits to a pressure medium via a valve device, wherein one of the pistons can be actuated by the actuation device; a second piston-cylinder unit having an electric motor drive, a transmission at least one piston to supply at least one of the brake circuits with a pressure medium via a valve device; and a motor pump unit with a valve device to supply the brake circuits with a pressure medium. The brake system may also include a hydraulic travel simulator with a pressure or working chamber which is connected to the first piston-cylinder unit.

An electronic parking brake system includes: a first electronic parking brake (EPB) including a first electric motor configured to provide a first braking torque to a first wheel of a vehicle; a second EPB including a second electric motor configured to provide a second braking torque to a second wheel of the vehicle; a first controller configured to control the first electric motor; and a second controller configured to control the second electric motor, wherein the first controller is configured to transmit a first signal to the second controller at predetermined intervals, and the second controller is configured to increase the second braking torque provided to the second wheel, based on the first signal not being received from the first controller.

An electronic brake system is disclosed. According to one aspect of the present disclosure, there may be provided an electronic brake system including a piston provided in a caliper housing to press a pad plate, a nut coupled to the inside of the piston to move the piston forward or backward, a spindle configured to move the nut forward or backward by rotation and including a stepped portion formed on an outer surface thereof, a rotation limit unit connected to or disconnected from the spindle to allow or block the rotation of the spindle, and a drive unit configured to move the rotation limit unit to a position at which the rotation of the spindle is allowed or blocked, wherein the rotation limit unit includes a body surrounding an outer circumferential surface of the spindle, a binder provided on the body and provided to come into close contact with the stepped portion, and a connector provided on the body and configured to receive a driving force from the drive unit.

An electronic brake system is disclosed. According to one aspect of the present disclosure, there may be provided an electronic brake system including a piston provided in a caliper housing to press a pad plate, a nut coupled to the inside of the piston to move the piston forward or backward, a spindle configured to move the nut forward or backward by rotation and including a stepped portion formed on an outer surface thereof, a rotation limit unit connected to or disconnected from the spindle to allow or block the rotation of the spindle, and a drive unit configured to move the rotation limit unit to a position at which the rotation of the spindle is allowed or blocked, wherein the rotation limit unit includes a body surrounding an outer circumferential surface of the spindle, a binder provided on the body and provided to come into close contact with the stepped portion, and a connector provided on the body and configured to receive a driving force from the drive unit.

The present disclosure in some embodiments provides an electro-mechanical brake comprising a piston configured to push a brake pad towards a wheel disc by driving a motor, the electro-mechanical brake comprising: a position detection unit detecting a position of the piston; a current detection unit detecting a value of current flowing through the motor; a motor controller controlling a motor to move the piston toward the wheel disc for a preset time when a vehicle is stopped; and a contact point calculation unit calculating a contact point that is a position of the piston when the brake pad starts to contact with the wheel disc, based on a first position that is a position of the piston when a first current value is detected, using the current detection unit.

The present disclosure in some embodiments provides an electro-mechanical brake configured such that a piston pulls a brake pad toward a wheel disc by driving a motor, the electro-mechanical brake comprising: a hysteresis data storage unit storing rising-section function data on a rising section in which braking force increases as the piston moves toward the wheel disc, and falling-section function data on a falling section in which the braking force decreases as the piston moves away from the wheel disc; a transition section function data generating unit generating data on a transition section function for a transition section in which the braking force is transferred from any one of the rising section or the falling section to a remaining section of the rising and falling sections as a moving direction of the piston is changed; a position detection unit; and a braking force calculation unit.

A brake system for a motor vehicle with at least four hydraulically activated wheel brakes, including for each of the wheel brakes an electrically activated first wheel valve which is designed to be open when de-energized and an electrically activated second wheel valve which is designed to be closed when de-energized, a first electrically activated pressure source, which is connected to the first wheel valves via a first brake supply line, a second electrically activated pressure source, and a pressure medium reservoir vessel which is, in particular, at atmospheric pressure, wherein the second electrically activated pressure source is connected to the second wheel valves via a second brake supply line, and a method for operating said brake system.

A method for operating a brake system for motor vehicles, comprising a master brake cylinder actuable by a brake pedal, an electrically controllable pressure provision device, a pressure medium reservoir tank, from which the master brake cylinder and the pressure provision device are supplied with pressure medium, and at least two hydraulically actuable wheel brakes and at least one electrically actuable inlet valve per wheel brake, wherein the wheel brakes are actuable either by the master brake cylinder or by the pressure provision device, the pressure medium reservoir tank is monitored by a device for determining a level of the pressure medium, wherein the wheel brakes are divided into at least one first wheel brake group and one second wheel brake group, and wherein the inlet valves of the first wheel brake group are closed when the determined level falls below a first limit value (s.sub.1).