A setting device, particularly a motor vehicle parking brake includes a remotely-operated drive, a hollow shaft, a spindle shaft and an elastic element. The hollow shaft is driven by the remotely-operated drive so that the hollow shaft rotates. The spindle shaft moves relative to the hollow shaft within the hollow shaft due to the rotation of the hollow shaft. The spindle shaft is connected to a brake cable such that the spindle shaft can apply and release the brake as it moves in different directions within the hollow shaft. The elastic element is loaded due to movement of the hollow shaft as the hollow shaft is driven in an attempt to release the brake while the brake cable is blocked.

A setting device, particularly a motor vehicle parking brake includes a remotely-operated drive, a hollow shaft, a spindle shaft and an elastic element. The hollow shaft is driven by the remotely-operated drive so that the hollow shaft rotates. The spindle shaft moves relative to the hollow shaft within the hollow shaft due to the rotation of the hollow shaft. The spindle shaft is connected to a brake cable such that the spindle shaft can apply and release the brake as it moves in different directions within the hollow shaft. The elastic element is loaded due to movement of the hollow shaft as the hollow shaft is driven in an attempt to release the brake while the brake cable is blocked.

Systems and methods for emergency brake systems are provided herein. In this regard, a brake system may comprise a summing lever having a first end and a second end, a brake handle coupled to the first end of the summing lever, the brake handle rotatably coupled about a first axis, and a linear actuator having a plunger, the plunger being coupled to the second end of the summing lever. In various embodiments, an idler link may be coupled between the brake handle and the first end of the summing lever. The brake system may further comprise a brake cable coupled between the summing lever and a brake metering valve. The brake metering valve may be actuated in response to at least one of the brake handle being rotated about the first axis or the linear actuator being actuated.

A screw actuator comprises a screw shaft for threaded engagement with an actuator output device such that rotation of the screw shaft causes linear movement of the actuator output device; and a motor for driving rotation of the screw shaft. A no-back device is included for restricting movement of the screw shaft in response to feedback torque applied due to external forces on the actuator output device.

Systems and methods for emergency brake systems are provided herein. In this regard, a brake system may comprise a summing lever having a first end and a second end, a brake handle coupled to the first end of the summing lever, the brake handle rotatably coupled about a first axis, and a linear actuator having a plunger, the plunger being coupled to the second end of the summing lever. In various embodiments, an idler link may be coupled between the brake handle and the first end of the summing lever. The brake system may further comprise a brake cable coupled between the summing lever and a brake metering valve. The brake metering valve may be actuated in response to at least one of the brake handle being rotated about the first axis or the linear actuator being actuated.

A booster includes a valve body and a boosting assembly with a ball screw. The ball screw includes a screw rod, a nut, and a plurality of balls cooperating with and between the screw rod and the nut. The nut is linked with the valve body and moves along a straight line on its cooperated screw rod so as to drive the valve body to move along a straight line. A brake system includes the booster and a hydraulic system that includes a braking main cylinder with a piston. The valve body is connected to the piston. The booster is configured to provide high transmission efficiency.

Disclosed is an assembly that includes a spindle; a brake cable in communication with the spindle; and a spring in communication with the spindle. Movement of the spindle in a first direction causes the brake cable to move so that a clamping force is created. Movement of the spindle in a second direction causes the brake cable to move in a second direction so that the clamping force is released. Movement of the spindle in both the first direction and the second direction causes the spring to compress so that a controller can determine when the clamping force is created and released.

An electromechanical brake system comprises: a screw-nut mechanism comprising a rotatable body and a translatable body configured to be axially translatable relative to the rotatable body to move a brake pad according to rotation of the rotatable body; and an actuator assembly comprising a motor having a motor shaft, and a multiple-stage drive mechanism having belt and gear drive mechanisms and operably connecting between the motor shaft and the rotatable body of the screw-nut mechanism. The belt drive mechanism comprises: a drive belt; a drive pulley provided on the motor shaft; and a driven pulley connected to the drive pulley of the motor shaft via the drive belt, wherein the driven pulley is provided on an intermediate shaft. The gear drive mechanism comprises: a first gear provided on the intermediate shaft; and a second gear rotatably engaged with the first gear to rotate the rotatable body of the screw-nut mechanism.

An electromechanical brake system comprises: a screw-nut mechanism comprising a rotatable body and a translatable body configured to be axially translatable relative to the rotatable body to move a brake pad according to rotation of the rotatable body; and an actuator assembly comprising a motor having a motor shaft, and a multiple-stage drive mechanism having belt and gear drive mechanisms and operably connecting between the motor shaft and the rotatable body of the screw-nut mechanism. The belt drive mechanism comprises: a drive belt; a drive pulley provided on the motor shaft; and a driven pulley connected to the drive pulley of the motor shaft via the drive belt, wherein the driven pulley is provided on an intermediate shaft. The gear drive mechanism comprises: a first gear provided on the intermediate shaft; and a second gear rotatably engaged with the first gear to rotate the rotatable body of the screw-nut mechanism.