Provided is an electronic parking brake system including: an electronic parking brake provided in at least one of a front wheel and a rear wheel of a vehicle and driven by a motor; and a controller electrically connected to the motor, wherein the controller is configured to determine whether a gear stage of an electronic transmission system (a shift by wire: SBW) is shifted to a neutral position during ignition-off of the vehicle, and upon determining that the gear stage is shifted to the neutral position, release engagement of the electronic parking brake.

An electric parking brake actuator assembly is proposed. The electric parking brake actuator assembly includes: an outer housing including an inner space in which a gear installation space and a motor installation space are formed; an inner housing installed in the inner space of the outer housing, and including a brush card part and a gear installation part integrated together; a motor assembly coupled to the brush card part to be electrically connected thereto, and installed in the motor installation space; a gear assembly installed at the gear installation part and at the gear installation space, and changing and transmitting the rotational speed of the motor assembly; and a cover housing coupled to the outer housing with the inner housing interposed therebetween, and including a shaft insertion portion.

A brake device of the present invention includes: a wheel brake unit for braking a wheel; an electric motor for driving the wheel brake unit; a speed reducer for decelerating rotation of the electric motor; a rotation-linear motion converter for converting a rotational output of the speed reducer into a linear motion; and a braking force transmission member for transmitting the linear motion produced by the rotation-linear motion converter to the wheel brake unit.

A brake assembly comprising: (a) a caliper including: (i) one or more pistons, (b) one or more rotary to linear actuators that provides an axial force to move the one or more pistons, (c) a motor gear unit in communication with the one or more rotary to linear actuators, the motor gear unit including: (i) a motor, and (ii) an electromagnetic brake that prevents movement of the motor gear unit, the pistons, or both when the motor is turned off so that the brake apply is maintained.

Provided is an electric braking device that transmits power generated by an electric motor MTR to a pressing member PSN and causes pressing force to be generated by the pressing member PSN with respect to a friction member MSB. Hysteresis characteristics in the relation between the power supply amount to the electric motor and the pressing force of the pressing member are detected each time a predetermined point in time arrives. Upon determination of a “holding state in which the pressing force is held constant”, a minimum value for a power supply amount that makes it possible to maintain the current pressing force is obtained on the basis of the most recently detected hysteresis characteristics and the power supply amount is set to a value determined on the basis of the obtained minimum value for the power supply amount.

An electric brake device includes: a brake rotor; a friction member; friction member contactor; an electric motor; braking force estimation unit; and a control device. The control device has a control system in which a motor rotation angle of the electric motor is included in a state quantity in a control computing of a follow-up control. The control device includes a state quantity reset function unit that resets at least the motor rotation angle to a predetermined value, on the basis of a predetermined condition using at least one of a target braking force, an estimated value of a braking force, an amount of change of a target braking force, an amount of change of an estimated value of a braking force, and a deviation between a target braking force and an estimated value of the braking force.

A pivot bearing of a ball screw of a power brake pressure generator for a hydraulic vehicle braking system is fastened at a hydraulic block with the aid of a sleeve that has an internal circumferential edge, which engages from above with the pivot bearing on a front face facing away from the hydraulic block. The sleeve has a flange that is caulked in an annular step in the hydraulic block.

A brake actuator (1, 1′) includes a casing (10), an electric motor for providing a driving torque, a cam disc (20) rotatably mounted to the casing (10) and operatively coupled to the electric motor, and a push rod (30) received in the casing (10), and configured to reciprocate in a longitudinal direction (100) between a retracted position (300) and an extended position (400). The push rod (30) and the cam disc (20) are operatively coupled such that a rotational movement of the cam disc (20) causes a linear movement of the push rod. A guiding member (40), in particular a bushing, is mounted to the casing (10), wherein the guiding member (40) guides the movement of the push rod (30) in the longitudinal direction (100).

An electro-hydraulic hybrid braking system for a vehicle is disclosed. The system includes multiple wheel-end braking modules (1), a hydraulic control module (2), a first electronic control module (3), and a second electronic control module (4). Each of the wheel-end braking modules (1) includes a hydraulic piston (10), a motor (8), and a speed-reducing transmission mechanism (9) configured to convert a rotary motion from the motor (8) into a linear motion for driving the hydraulic piston (10) or brake friction plates (12) to move forwards. The hydraulic piston (10) is movably arranged, and is movable forwards through brake hydraulic pressure. The motor (8) is controlled by the first electronic control module (3) and/or the second electronic control module (4). The electro-hydraulic hybrid braking system for a vehicle is applicable to a vehicle braking system for intelligent driving.

A braking system for a vehicle includes a hydraulic vehicle brake with an electric actuator and an electromechanical braking device. The braking system further includes a locking mechanism configured to lock the electric actuator.