A method of controlling a brake system that includes a motor and an actuator. The method includes moving the actuator towards a retracted position; activating a timer; monitoring a motor characteristic of the motor and monitoring the timer; and determining the actuator has reached the retracted position after the timer meets or exceeds a predetermined time threshold before the motor characteristic has reached or exceeded a predetermined motor characteristic threshold.

A robotic surgery cart has a pair of rear wheel assemblies and a pair of front wheel assemblies. A brake assembly for the robotic surgery cart includes a gearbox interposed between and connected to the pair of rear wheel assemblies by rotatable shafts. Elongate actuators extend between and interconnect the rotatable shafts and brake mechanisms for the front wheel assemblies. A pedal lever is rotatably coupled to the gearbox and can rotate clockwise by pressing one portion of the pedal lever and can rotate counterclockwise by pressing another portion of the pedal lever. Rotation of the pedal lever causes the gearbox to rotate the rotatable shafts to substantially lock the pair of rear wheel assemblies, and substantially simultaneously causes a translation of the elongate actuators to actuate the brake mechanisms of the front wheel assemblies, such that the wheels of the front and rear wheel assemblies brake substantially simultaneously.

A method and a system for monitoring wear of a braking frictional pad of a motor vehicle, the motor vehicle including a brake device acting on a vehicle wheel, the brake device including a braking frictional pad that is non-rotatable relative to the vehicle wheel and is linearly movable parallel to a rotational axis of the vehicle wheel; a brake piston configured to drive the braking frictional pad; and an electric parking brake or an electric mechanical brake, the electric parking brake or the electric mechanical brake having a drive motor and a piston driving part driven by the drive motor to be linearly movable, the piston driving part being configured to, when the motor vehicle is braking, drive the brake piston to contact the braking frictional pad and in turn drive the braking frictional pad to move.

An assembly that includes a parking brake system including two or more spindle/nut devices. The two or more spindle/nut devices include a high efficiency device and a low efficiency device. The high efficiency device is in communication with a first end of a brake pad, and the low efficiency device in communication with a second end of the brake pad. The high efficiency device moves the first end of the brake pad against a braking surface, and the low efficiency device moves the second end of the brake pad against the braking surface. After one or both of the ends of the brake pad are moved against the braking surface and a clamping force is created, the low efficiency device locks and prevents movement of the high efficiency device so that the clamping force is maintained.

An electric motor-driven brake apparatus has speed reduction mechanisms transmitting rotational force of an electric motor, a ball screw mechanism converting rotational force of the speed reduction mechanisms into a thrust, a piston propelled by the ball screw mechanism, and a caliper movably supporting the piston. The ball screw mechanism has a base nut non-rotatably supported relative to the caliper. The ball screw mechanism further has a push rod receiving rotational force from the speed reduction mechanisms. The push rod is movable relative to the base nut in the axial direction of the push rod. Consequently, it is possible to reduce the axial length of the cylinder portion of the caliper body, and hence possible to attain a size reduction. Accordingly, it is possible to improve the mountability of the electric motor-driven brake apparatus 1 onto vehicles.

An actuator arrangement for an electric parking brake or electric motor service brake, having a brake pad adjustment device which can be driven by the actuator arrangement. The invention has a modular construction, comprising: an electric motor, a gear unit, positioned in a housing, coupled to the electric motor and having a functional connection at its output end with the brake pad adjustment device, a means for fastening the actuator arrangement to the brake caliper or the brake pad adjustment device, and a plug receptacle for a plug connector used for the purpose of transmitting electrical signals to the electric motor. The housing has a motor tube molded joined thereto, housing the electric motor, and a motor cap to which is molded, as a single piece, the plug receptacle for a plug connector used for the purpose of transmitting electrical signals to the electric motor.

A robotic surgery cart has a pair of rear wheel assemblies and a pair of front wheel assemblies. A brake assembly for the robotic surgery cart includes a gearbox interposed between and connected to the pair of rear wheel assemblies by rotatable shafts. Elongate actuators extend between and interconnect the rotatable shafts and brake mechanisms for the front wheel assemblies. A pedal lever is rotatably coupled to the gearbox and can rotate clockwise by pressing one portion of the pedal lever and can rotate counterclockwise by pressing another portion of the pedal lever. Rotation of the pedal lever causes the gearbox to rotate the rotatable shafts to substantially lock the pair of rear wheel assemblies, and substantially simultaneously causes a translation of the elongate actuators to actuate the brake mechanisms of the front wheel assemblies, such that the wheels of the front and rear wheel assemblies brake substantially simultaneously.

A brake device is provided to a human-powered vehicle. The brake device includes an input body, a brake, and a power converter. A driving force is input to the input body. The brake is configured to contact a rotational body of the human-powered vehicle. The power converter is configured to convert a rotational force of the input body to a force that moves the brake toward the rotational body. The power converter includes a transmission configured to change a ratio of a movement amount of the brake to an output rotational speed of the input body.

A wheel-at-rest automatic brake system including a base, a cam, two reset brackets and an interlocking gear is installed in a wheel hub and connected to a wheel shaft of the wheel hub. The base is installed in the wheel hub and has multiple mounting holes and three first pivot holes; the cam is hinged to the first pivot hole and has a protrusion and two driving portions; the two reset brackets are pivoted to the remaining two first pivot holes; each driving portion has a limit notch; the interlocking gear is fixed to the wheel shaft and engaged to the protrusion; and the two driving portions are situated in the two limit notches to define a locked state. When moving, the interlocking gear drives the protrusion to deflect, and the two driving portions prop the two reset brackets up to define a released state.

The disclosure relates to an electromechanical brake for a motor vehicle. The electromechanical brake comprises an actuating piston which is set up to be moved translationally in a direction of a piston axis in order to actuate at least one brake shoe. The electromechanical brake also comprises a brake carrier having a gas-containing piston chamber in which the actuating piston is received such that it can be moved translationally in a direction of the piston axis. Furthermore, the electromechanical brake comprises an electric motor for driving the actuating piston. In the case of the electromechanical brake, a venting device is provided, which is set up to vent the piston chamber with respect to an exterior. The disclosure also relates to a disc brake, to a brake system, and to a motor vehicle.