A disc brake includes: an inner pad and an outer pad respectively located on opposite sides of a rotor; a pressing device that presses the inner pad and the outer pad against the rotor; and a housing holding the pressing device. The pressing device includes: at least one first pressing member movable toward the rotor and at least one second pressing member movable away from the rotor; and a driving member movable relative to the housing in an axial direction parallel with a rotation axis of the rotor and configured to be moved by movement of the at least one second pressing member to press the outer pad against the rotor. The housing is provided with a torque receiver that receives torque acting on the outer pad in operation of the disc brake.

A system for determining brake wear based on hydraulic fluid volume may comprise a brake actuator and a fluid supply line fluidly coupled to the brake actuator. The brake actuator may include a brake ram configured to translate in response to changes in fluid pressure in the brake actuator. A piston may be fluidly coupled between a first portion of the fluid supply line and a second portion of the fluid supply line. The piston may include a cylinder and a ram configured to translate within the cylinder. A first sensor may be operably coupled to the piston.

A drive and deceleration unit has a mechanical brake and an electric drive. The mechanical brake and the electric drive are provided as a unit for acting on a single wheel connection. A method provides for the open-loop and/or closed-loop control of such a drive and deceleration unit.

A disc brake device includes a pair of pads, a pad support member supporting at least one of the pair of pads in a movable manner in an axial direction, and a plurality of pistons configured to press the one of the pads toward the rotor in the axial direction. Slide engagement portions engaged with the pad support member so as to be movable in the axial direction are respectively provided at both side portions of the one of the pads in a circumferential direction. The one of the pads is fixed to a tip end portion of at least one piston including a piston arranged at an end portion on a rotation-in side or a rotation-out side among the plurality of pistons, and is not fixed to a tip end portion of a remaining piston.

Disclosed is an electromechanical brake system including a pair of pad plates to which brake pads for pressing a brake disc rotating together with a wheel are attached, a carrier on which the pair of plates are installed, a caliper housing slidably installed on the carrier, a piston installed in the caliper housing to move forward and backward, a power conversion device configured to move the piston forward and backward to press the pair of pad plates toward the disc, an actuator including a motor provided to provide a rotational force to the piston and a reduction device provided to reduce the rotational force of the motor and transmit the reduced rotational force to the power conversion device, and a controller provided to control the motor, wherein the controller is configured to determine whether a braking operation mode and a braking release mode are continuously repeated, determine, when the braking operation mode and the braking release mode are continuously repeated, whether a clamping force between the brake disc and the brake pad is not released after the braking operation mode is changed to the braking release mode depending on brake pedal information and clamping force information, and control the motor to release the clamping force based on the clamping force information when the clamping force is not released after being changed to the braking release mode.

A vehicle includes a chassis, a front axle coupled to the chassis, a rear axle coupled to the chassis, a powertrain coupled to the chassis, a cab coupled to the chassis, a rear module coupled to the chassis behind the cab. The powertrain is configured to drive at least one of the front axle or the rear axle. The rear module is selectively reconfigurable between a plurality of configurations.

An electrical wheel brake actuator for motor vehicles, designed to move a brake pad in the direction of a brake rotor and having an electric motor-gear assembly with a rotation-translation converter assembly that includes a nut-spindle arrangement, and an elastic element which is associated with a release end stop of the spindle arrangement in order, together with a control unit, to allow the electric motor to be automatically electrically switched off. The elastic element includes at least two disc springs which are able to form an expanded segmented force-travel spring curve formed from multiple force-travel spring curve portions.

Disclosed are an electronic caliper brake and an operation method thereof. The electronic caliper brake includes a carrier on which a pair of pad plates are installed to advance and retreat, a caliper housing slidably installed on the carrier and provided with a cylinder in which a piston is installed to advance and retreat by a braking hydraulic pressure, a hydraulic pressure supply device configured to supply the braking hydraulic pressure to the cylinder, a spindle member installed to penetrate through a rear portion of the cylinder and configured to rotate by receiving a rotational force of an actuator, a nut member configured to advance and retreat depending to the rotation of the spindle member to press and release the piston, and a power transmission device in which an input part is connected to an output shaft of the actuator and an output part is connected to the spindle member, and configured to transmit the rotational force of the actuator to the spindle member.

A parking brake control device is a control device for a vehicle used in a vehicle on which a shift by wire system and an electric parking brake system are mounted. A function of automatically operating an electric parking brake without an operation of the driver of the vehicle is referred to as an EPB automatic operation function, and a request by the driver for disabling the EPB automatic operation function is referred to as a disabling request. The parking brake control device includes a disabling determination part configured to determine a presence or absence of the disabling request, a vehicle stop determination part configured to determine whether the vehicle is stopped, a slope determination part configured to determine whether the vehicle is located on a slope, and an EPB automatic operation part. The EPB automatic operation part operates the electric parking brake when the vehicle is stopped on the slope even if the disabling request is made.

An electromechanical brake apparatus includes a housing supporting an inboard brake pad and an outboard brake pad for selective frictional contact with a rotor interposed longitudinally therebetween. The housing includes a mechanism cavity located longitudinally between the inboard pad and a motor having a sun gear motor output shaft. An adjuster ramp assembly indirectly receives torque from the motor. A spindle is provided for selectively moving the inboard brake pad longitudinally. The spindle is operatively connected with the adjuster ramp assembly to indirectly receive torque from the motor therethrough. A leading ramp assembly is configured to transmit applied torque from the motor to the adjuster ramp assembly. The leading ramp assembly receives stepped-up torque from the motor via the sun gear motor output shaft and a plurality of planet gears located radially between the sun gear motor output shaft and a toothed inner lumen of the leading ramp assembly.