Abstract: Specified is a brake actuator (12), in particular for an electromechanical vehicle brake (10), having an electric motor (32) for activating the vehicle brake (10), and a blocking module (36) for selectively rotationally blocking an output shaft (38) of the electric motor (32) so as to configure a parking brake function. The blocking module (36) comprises a blocking lever (40) which is mounted so as to be pivotable between a locking position and a releasing position, and a blocking actuator (42) for pivoting the blocking lever (40), wherein configured on the blocking lever (40) is a blocking tooth (44) which in the locking position of the blocking lever (40) engages with a gear wheel coupled to the output shaft (38) of the electric motor (32).

Abstract: A method for operating a braking system for a motor vehicle is proposed. The method includes the step of operating at least one rear wheel brake and at least one front wheel brake to perform a parking braking function when there is a requirement for parking braking. Furthermore, a braking system, a method for controlling it, a computer program, a control unit and a motor vehicle are proposed.

Abstract: A brake actuator for an electromechanical vehicle brake has a locking assembly (40) for selectively rotationally blocking an output shaft (42) to form a parking brake function. The locking assembly (40) comprises a wrap spring (44) and a drive (70), wherein the windings (46) of the wrap spring (44) are arranged coaxially with the output shaft (42) and the locking assembly (40) is configured and arranged such that the drive (70) can tighten the wrap spring (44) about the output shaft (42) into a locked position in order to block the output shaft (42). After the electromechanical vehicle brake (10) is closed, the wrap spring (44) is tightened into the locked position so that the output shaft (42) is blocked. For a hot retensioning of the vehicle brake, the output shaft (42) is rotated in a rotational direction increasing the brake force, whereby the wrap spring (44) is loosened.

Abstract: A brake actuator for an electromechanical vehicle brake has a locking assembly (40) for selectively rotationally blocking an output shaft (42) of an electric motor to form a parking brake function. The locking assembly (40) has a locking pawl (44) which is pivotable between a locked position and a release position and a drive (46) for pivoting the locking pawl (44), which drive is coupled in terms of drive via a worm gear (54) to the locking pawl (44).

Abstract: A brake-by-wire braking system for a vehicle having at least two wheels which are able to be braked is described. The braking system comprises at least two brake actuator units, each of which can be associated with one of the wheels of the vehicle which are able to be braked. The braking system further comprises a brake actuation unit for actuation by the driver for braking, having at least one sensor for detecting an activation of the brake actuation unit by the driver, an acceleration actuation unit having at least one sensor for detecting the activation of the acceleration actuation unit by the driver, and at least one electronic control unit which is adapted to operate one or both of the brake actuator units in order to bring about a braking force at an associated wheel. The control unit is adapted to operate the brake actuator units on the basis of an activation of the acceleration activation unit in the event of a fault or failure of the brake actuation unit.

Abstract: The disclosure relates to a braking device having an actuatable member, an electromagnetic coil having at least two coil windings, which can be energized independently of one another and which are each designed to generate a magnetic force for the actuatable member in an actuating direction in an energized state, and a resetting element, which exerts a force on the actuatable member in a resetting direction opposite to the actuating direction. The at least two coil windings and the resetting element are designed in such a way that the magnitude of the total magnetic force of all the coil windings exceeds the magnitude of the force of the resetting element only when all the coil windings are energized simultaneously. The disclosure further relates to a method for operating a braking device.

Abstract: The disclosure relates to a brake system for a vehicle having four brakeable wheels, the brake system comprising an actuation unit for detecting a driver braking request, a main brake module, which comprises a hydraulic brake actuator unit, which is configured for braking the front wheels, and an electromechanical brake actuator unit, which is configured for braking the rear wheels, and having a hydraulic auxiliary brake module, which is coupled hydraulically to the hydraulic brake actuator unit for braking the front wheels and is connected electronically to the electromechanical brake actuator unit. In addition, a vehicle having a brake system is also disclosed.

Abstract: Specified is a brake actuator (12), in particular for an electromechanical vehicle brake (10), having an electric motor (32) for activating the vehicle brake (10), and a blocking module (36) for selectively rotationally blocking an output shaft (38) of the electric motor (32) so as to configure a parking brake function. The blocking module (36) comprises a blocking lever (40) which is mounted so as to be pivotable between a locking position and a releasing position, and a blocking actuator (42) for pivoting the blocking lever (40), wherein configured on the blocking lever (40) is a blocking tooth (44) which in the locking position of the blocking lever (40) engages with a gear wheel coupled to the output shaft (38) of the electric motor (32).

Abstract: The disclosure relates to a braking device having an actuatable member, an electromagnetic coil having at least two coil windings, which can be energized independently of one another and which are each designed to generate a magnetic force for the actuatable member in an actuating direction in an energized state, and a resetting element, which exerts a force on the actuatable member in a resetting direction opposite to the actuating direction. The at least two coil windings and the resetting element are designed in such a way that the magnitude of the total magnetic force of all the coil windings exceeds the magnitude of the force of the resetting element only when all the coil windings are energized simultaneously. The disclosure further relates to a method for operating a braking device.

Abstract: A method for operating a braking system for a motor vehicle is proposed. The method includes the step of operating at least one rear wheel brake and at least one front wheel brake to perform a parking braking function when there is a requirement for parking braking. Furthermore, a braking system, a method for controlling it, a computer program, a control unit and a motor vehicle are proposed.

Abstract: An electromechanical vehicle brake has an electric motor and an actuation piston, which acts on a braking assembly, as well as a ball screw drive. The ball screw drive comprises a spindle rotatable by the electric motor and a ball screw nut displaceable on the spindle. The ball screw nut is received in the actuation piston and cooperates with a stop on an inner axial end of the actuation piston to displace the actuation piston in an actuation direction. A spring element is arranged in the actuation piston between the stop and the ball screw nut. A travel sensor measures a linear displacement of the actuation piston. With the aid of the signal of the travel sensor, which indicates a displacement position of the actuation piston, a braking force currently applied by the actuation piston to the braking assembly is determined under consideration of the characteristic curve of the spring element.

Abstract: A brake-by-wire braking system for a vehicle having at least two wheels which are able to be braked is described. The braking system comprises at least two brake actuator units, each of which can be associated with one of the wheels of the vehicle which are able to be braked. The braking system further comprises a brake actuation unit for actuation by the driver for braking, having at least one sensor for detecting an activation of the brake actuation unit by the driver, an acceleration actuation unit having at least one sensor for detecting the activation of the acceleration actuation unit by the driver, and at least one electronic control unit which is adapted to operate one or both of the brake actuator units in order to bring about a braking force at an associated wheel. The control unit is adapted to operate the brake actuator units on the basis of an activation of the acceleration activation unit in the event of a fault or failure of the brake actuation unit.

Abstract: A hydraulic arrangement for a brake system is disclosed. The hydraulic arrangement comprises a pressure-providing device, a reservoir for storing a pressure medium and a bleed line. The pressure-providing device has at least one pressure chamber which can be connected to a brake circuit. The reservoir has a first partial reservoir, which can be connected via a first reservoir line to a first pressure chamber of a piston-cylinder arrangement. The first pressure chamber of the piston-cylinder arrangement is delimited by a piston, which can be adjusted by an actuating device. The bleed line connects a bleed outlet of the pressure-providing device to the first reservoir line. A diagnostic method and brake system are also disclosed.

Abstract: The disclosure relates to a braking system for a vehicle having at least four brakable wheels. The braking system comprises at least four brake actuator units, each of which can be associated with one of the wheels of the vehicle, as well as a first electronic control unit and a second electronic control unit. Each brake actuator unit has its own signal line via which the relevant brake actuator unit is connected in terms of signaling to the first control unit and the second control unit, so that each of the brake actuator units can be actuated both by the first control unit and by the second control unit.