A brake device includes a brake pad, a pad moving unit connected to the brake pad and configured to linearly move the brake pad, a caliper body having a cylindrical portion for the pad moving unit to be seated therein, and a motor-gear assembly connected to the pad moving unit and transmitting power of a motor. The pad moving unit includes a conversion assembly for converting a rotational motion into a linear motion, and a piston connected to one end of the conversion assembly. The piston is positioned outside the cylindrical portion. The motor-gear assembly is fixed with respect to the caliper body.

A brake assembly comprises: a brake piston configured to be movable for a brake apply or release and having an inner wall forming a piston cavity, wherein a groove is formed on the inner wall of the brake piston; a linearly movable structure positioned within the piston cavity of the brake piston and configured to be linearly movable within the piston cavity; and a resilient material, wherein a part of the resilient material is located within the groove formed on the inner wall of the brake piston and the other part of the resilient material is disposed on an outer surface of the linearly movable structure so that the resilient material is engageable with a surface of the groove formed on the inner wall of the brake piston to move the brake piston by restoring force of the resilient material in response to linear movement of the linearly movable structure.

A braking system for a vehicle has a disc brake having a brake disc having a disc brake caliper and a pair of pads, an electric actuator operatively connected to a piston acting as a pusher on at least one of the pads, and a processing and control unit operatively connected to the electric actuator and programmed to move the piston and respective pad to a forward position to press the pad into contact with the brake disc during a braking demand, and bring the piston and respective pad to a rest or rearward position. A gap is identified between the pad and the brake disc. The processing and control unit is programmed to implement an algorithm that, in absence of a braking demand, operates the electric actuator by varying the gap according to at least one dynamic parameter of the vehicle defining a prediction of a braking demand.

A method adjusts the slack of a brake assembly having a brake disc, a brake pad, an actuator with an output shaft driven in a forward direction to bring the brake pad and brake disc into frictional engagement defining a braking position and a reverse direction to disengage the brake pad and brake disc and to move the brake pad into a rest position, and a slack adjuster for adjusting a predetermined axial slack distance between the brake pad and the brake disc. The brake pad is moved from the rest position in the reverse direction into a predetermined reference position, and an adjustment of the axial slack distance between the brake pad and brake disc is initiated.

Provided is an electric brake including: a brake mechanism configured to transmit, based on a braking request, a thrust force generated through drive of an electric motor to a piston configured to move brake pads to be pressed against a disc rotor; and an ECU for rear electric brake configured to control the drive of the electric motor, and to move, in a non-braking state, the piston to a predetermined clearance position at which a clearance between each of the brake pads and the disc rotor is a predetermined amount. The ECU for rear electric brake is configured to drive the electric motor so that a period from generation of the braking request to a start of the pressing of the disc rotor by the brake pads is a predetermined period regardless of a position of the piston at a time when the braking request is generated.

The present disclosure relates to a zero-drag control device of an EMB system and a zero-drag control method using the same, which effectively control a drag phenomenon. By adjusting a gap between a disk and a pad in consideration of not only a braking intention through a brake pedal but also an accelerating intention through an accelerator pedal, the drag phenomenon can be effectively controlled and the braking response can be improved.

A lining wear adjustment device for a disc brake with a brake application device having a brake actuating lever, which can preferably be inserted into an adjustment spindle of the disc brake, includes an adjusting shaft with an external bearing, a rotary drive element and a clutch device for switchable coupling of the rotary drive element to the adjusting shaft. The clutch device is an electrically controllable solenoid clutch with at least one electromagnetic coil.

An electric-wear adjusting device of a motor vehicle disc brake is provided for adjusting friction surface wear on the brake linings and brake disc of the disc brake having. having a brake application device, preferably with a rotary brake lever. The adjusting device includes an electric motor, a gear mechanism, and an output element. The output element is connected rotationally fixed to a clamping sleeve. The clamping sleeve has inwardly projecting longitudinal ribs on an inner side configured to cooperate with axial grooves of a threaded plunger of a wear-adjuster spindle unit. Also provided is a corresponding disc brake having the electric wear-adjusting device, and a method for measuring and setting air play and measuring wear of a disc brake having the electric wear-adjusting device.

A method for electronically activating an electromechanical actuator with the aid of an electronic unit is provided. A reversible electromotive actuator is connected to the ECU. An electric wheel brake in a motor vehicle comprises a brake stator, having a gear adjustment device for actuating and holding at least one brake lining in the direction of a brake rotor comprises means for providing an unbraked state with a release clearance between the brake lining and brake rotor. The release clearance is as minimal as possible and at the same time can be set in a wear-compensated, electrically defined way by virtue of the automatically imparting a special release clearance setting process/braking-readiness position to the motor vehicle wheel brake by way of software support.

A method and apparatus for monitoring the condition of a service brake for a vehicle is provided. The service brake includes at least one linear path detection device for each service brake unit. The method includes reading a position signal of a service brake component from the path detection device over time or a time period, reading a pressure signal, a control signal and/or a lining wear signal, evaluating the position signal in order to determine at least one condition parameter of the service brake determined using the pressure signal, the control signal and/or the lining wear signal, and providing the condition parameter of the service brake to an interface for use in subsequent brake applications.