Abstract: For ascertaining at least one variable regarding a state of a brake fluid in a brake system of a vehicle, an evaluation unit is configured to determine the at least one variable by taking into account at least one pair of values of a provided or ascertained volume flow variable regarding a volume flow of at least a portion of the brake fluid through a flow resistance in the brake system and a provided or ascertained associated pressure drop variable regarding a pressure drop at the flow resistance through which the volume flow flows. For the at least one pair of values taken into account, a volume flow variable lies within a first specified limited value range and the pressure drop variable lies within a second specified limited value range.

Abstract: A hydraulic control device for at least one hydraulic aggregate of a brake system, and a brake booster control device, interacting therewith, for an electromechanical brake booster of the brake system. The hydraulic control device includes a first control electronics by which at least one motor target quantity that is to be realized by a motor of the electromechanical brake booster can be determined, taking into account a provided brake actuating strength quantity relating to a current actuation of a brake actuating element, and by which a specification signal corresponding to the at least one determined motor target quantity can be outputted to the brake booster control device. The brake booster control device has a second control electronics that, at least in a normal mode, outputs the control signal to the motor of the electromechanical brake booster, taking into account the specification signal outputted by the hydraulic control device.

Abstract: A power brake system having electronic slip regulation, and a method for controlling a power brake system having electronic slip regulation. A return line is equipped with a pressure medium storage unit for storing pressure medium with a pressure that is greater than an ambient atmospheric pressure, and is equipped with a blocking device that is controllable and that is situated between the pressure medium storage device and the reservoir. In addition, there is a pressure medium connection between the pressure medium storage unit and the plunger working space. A controlling of a power brake system takes place using the blocking device in such a way that the return line is blocked relative to the reservoir as soon as a plunger piston, driven by a drive unit, has traveled a definable path in the forward direction.

Abstract: A vehicle brake system includes a brake pedal operable to receive a user input force, a master cylinder operably coupled to the brake pedal, a brake cylinder selectively coupled to the master cylinder via a hydraulic circuit, an electronically-controlled pressure generating unit distinct from the master cylinder, and a controller operable to receive a signal indicative of the user input force to the brake pedal. In a first mode, the controller is operable to actuate the electronically-controlled pressure generating unit to apply hydraulic fluid pressure to the brake cylinder according to the signal. In a second mode, the master cylinder is operable to actuate the brake cylinder, and the controller is operable to actuate the electronically-controlled pressure generating unit to supplement the master cylinder and extend a fluid volume capacity of the master cylinder.

Abstract: A brake system comprises a master cylinder, a first brake cylinder pro, a second brake cylinder, an electronically-controlled pressure generating unit distinct from the master cylinder, a first hydraulic circuit in selective fluid communication with the master cylinder and the first brake cylinder, a second hydraulic circuit in selective fluid communication with the master cylinder and the second brake cylinder, and a controller operable to receive an input. In a first mode, the controller is operable to actuate the electronically-controlled pressure generating unit to deliver hydraulic fluid pressure to the first brake cylinder and the second brake cylinder proportional to the input. In a second mode, the controller is operable to actuate the electronically-controlled pressure generating unit to first hydraulic circuit and the first brake cylinder and the master cylinder is in communication with the second hydraulic circuit to deliver hydraulic fluid pressure to the second brake cylinder.

Abstract: A method for operating a regenerative braking system of a vehicle by activating at least one motor employable in generator mode taking into consideration a first information with regard to a requested setpoint total braking torque and a second information with regard to an available generator braking torque which is maximally executable by the at least one motor employable in generator mode, if the setpoint total braking torque exceeds a threshold value and/or a piece of warning information regarding a transition to a backup level that is potentially imminent or has occurred of the regenerative braking system, even if the setpoint total braking torque is less than or equal to the maximally executable available generator braking torque, sufficient brake fluid is transferred via at least one hydraulic actuator to a wheel brake cylinder of the regenerative braking system that an air gap of the particular wheel brake cylinder is closed.

Abstract: A braking system for a vehicle includes: a brake input element for an actuation to input a brake pressure signal by a driver; a brake master cylinder coupled to the brake input element and supplied with hydraulic fluid from a hydraulic fluid reservoir fluidically connected to the brake master cylinder; and a first brake circuit. The first brake circuit has: a switchover valve with controllable through flow rate for the hydraulic fluid; a pressure regulating valve with controllable through flow rate for the hydraulic fluid; a hydraulic pump for optionally building up an elevated hydraulic fluid pressure in the first brake circuit; at least one first wheel brake cylinder exerting a braking torque on a first vehicle wheel coupled to the wheel brake cylinder; and a first fluid line from the hydraulic fluid reservoir being fluidically connected to the pressure regulating valve and to the hydraulic pump.

Abstract: An electromechanical braking device for a braking system including a master brake cylinder including an electric motor, an adjustable output rod, and a gear, the electric motor being connected to the output rod at least via the gear so that a power transmission path is present via which a motor output is at least partially transmittable to the output rod so that the output rod is adjustable, the electromechanical braking device including at least one elastic component situated within the power transmission path which is configured so that the at least one elastic component is not compressible below a control point of the electromechanical braking device, but during the occurrence of pressure peaks in the master brake cylinder which are above the control point of the electromechanical braking device, the at least one elastic component is compressible. Also described is a braking system for a vehicle.

Abstract: A power brake system having electronic slip regulation, and a method for controlling a power brake system having electronic slip regulation. A return line is equipped with a pressure medium storage unit for storing pressure medium with a pressure that is greater than an ambient atmospheric pressure, and is equipped with a blocking device that is controllable and that is situated between the pressure medium storage device and the reservoir. In addition, there is a pressure medium connection between the pressure medium storage unit and the plunger working space. A controlling of a power brake system takes place using the blocking device in such a way that the return line is blocked relative to the reservoir as soon as a plunger piston, driven by a drive unit, has traveled a definable path in the forward direction.

Abstract: A control system for an electric motor usable as a generator of a vehicle includes: a first control device and a second control device each configured to define, in consideration of at least one furnished first specification signal with regard to a driver-requested or autonomously requested braking input, at least one target braking torque variable with regard to at least one generator braking torque to be exerted by way of the at least one electric motor on at least one wheel of the vehicle and/or on at least one axle of the vehicle, and to output to the at least one electric motor, and/or to at least one electronic control system of the at least one electric motor, at least one output signal corresponding to the at least one target braking torque variable.

Abstract: A device is described for receiving and dispensing hydraulic fluid, in particular for a hybrid or electric vehicle, having a cylinder, a piston, which is movable in the cylinder for receiving and dispensing hydraulic fluid, and a drive unit; a ramp mechanism being provided, having at least one ramp on which at least one rolling element rolls for moving the piston, the ramp mechanism being situated between a face of the piston and a face of a gearwheel driven by the drive unit.

Abstract: A method for operating an electromechanical brake booster of a braking system including: establishing a virtual setpoint brake pressure variable; and establishing a setpoint differential travel variable with respect to a setpoint differential travel at least by: establishing a first intermediate value while taking into consideration a first weighting relation and a minimum from a first value set including the virtual setpoint brake pressure variable and a jump-in pressure variable; and establishing a second intermediate value while taking into consideration a second weighting relation and a maximum from a second value set including zero and a value of a difference using the virtual setpoint brake pressure variable as the minuend and the jump-in pressure variable as the subtrahend. A method for operating a recuperative braking system is also provided.

Abstract: A hydraulic control device for at least one hydraulic aggregate of a brake system, and a brake booster control device, interacting therewith, for an electromechanical brake booster of the brake system. The hydraulic control device includes a first control electronics by which at least one motor target quantity that is to be realized by a motor of the electromechanical brake booster can be determined, taking into account a provided brake actuating strength quantity relating to a current actuation of a brake actuating element, and by which a specification signal corresponding to the at least one determined motor target quantity can be outputted to the brake booster control device. The brake booster control device has a second control electronics that, at least in a normal mode, outputs the control signal to the motor of the electromechanical brake booster, taking into account the specification signal outputted by the hydraulic control device.

Abstract: A control apparatus for hydraulic components of a braking system of a vehicle, having a control application device that is designed to establish by application of control to the hydraulic components, in consideration of the braking request, at least one brake pressure in at least one wheel brake cylinder in such a way that the braking request is satisfiable; and to execute an antilock braking function at the at least one wheel brake cylinder, the control application device additionally being designed to ascertain whether at least one furnished actual value with regard to a displacement travel (s) of a brake actuation element of the vehicle out of its initial position, and/or with regard to a simulator volume shifted out of a brake master cylinder of the vehicle into a linked simulator, lies within at least one predefined extreme value range.

Abstract: A method for operating an electromechanical brake booster of a braking system including: establishing a virtual setpoint brake pressure variable; and establishing a setpoint differential travel variable with respect to a setpoint differential travel at least by: establishing a first intermediate value while taking into consideration a first weighting relation and a minimum from a first value set including the virtual setpoint brake pressure variable and a jump-in pressure variable; and establishing a second intermediate value while taking into consideration a second weighting relation and a maximum from a second value set including zero and a value of a difference using the virtual setpoint brake pressure variable as the minuend and the jump-in pressure variable as the subtrahend. A method for operating a recuperative braking system is also provided.

Abstract: A control system for an electric motor usable as a generator of a vehicle includes: a first control device and a second control device each configured to define, in consideration of at least one furnished first specification signal with regard to a driver-requested or autonomously requested braking input, at least one target braking torque variable with regard to at least one generator braking torque to be exerted by way of the at least one electric motor on at least one wheel of the vehicle and/or on at least one axle of the vehicle, and to output to the at least one electric motor, and/or to at least one electronic control system of the at least one electric motor, at least one output signal corresponding to the at least one target braking torque variable.

Abstract: An electromechanical braking device for a braking system including a master brake cylinder including an electric motor, an adjustable output rod, and a gear, the electric motor being connected to the output rod at least via the gear so that a power transmission path is present via which a motor output is at least partially transmittable to the output rod so that the output rod is adjustable, the electromechanical braking device including at least one elastic component situated within the power transmission path which is configured so that the at least one elastic component is not compressible below a control point of the electromechanical braking device, but during the occurrence of pressure peaks in the master brake cylinder which are above the control point of the electromechanical braking device, the at least one elastic component is compressible. Also described is a braking system for a vehicle.

Abstract: A method for operating a vehicle brake having a brake servo unit and a parking brake actuator. In the case of a failure of the brake servo unit, the distance between brake linings of the vehicle brake and brake disk is reduced by actuating the parking brake actuator.

Abstract: A control device for at least one electric parking brake of a vehicle brake system of a vehicle having a control instrument, to determine a setpoint variable regarding a setpoint braking torque to be generated with the parking brake and to output a control signal, the control instrument being configured to ascertain/detect, based on at least one provided signal, whether a brake booster is in at least one functionally limited or incapacitated state, and, if indicated, to determine the setpoint variable by considering at least one defined parameter regarding a requested total braking torque and to control the electric parking brake so that a corresponding actual braking torque is exertable with the parking brake. Also described is an electric parking brake for a vehicle brake system and to a vehicle brake system, and a method for operating a vehicle brake system having a brake booster and an electric parking brake.

Abstract: For ascertaining at least one variable regarding a state of a brake fluid in a brake system of a vehicle, an evaluation unit is configured to determine the at least one variable by taking into account at least one pair of values of a provided or ascertained volume flow variable regarding a volume flow of at least a portion of the brake fluid through a flow resistance in the brake system and a provided or ascertained associated pressure drop variable regarding a pressure drop at the flow resistance through which the volume flow flows. For the at least one pair of values taken into account, a volume flow variable lies within a first specified limited value range and the pressure drop variable lies within a second specified limited value range.