Abstract: An electrohydraulic brake controller comprises at least two first and two second output ports for at least four wheel brakes, s hydraulic pressure source, a first electronic open-loop and closed-loop control unit, a second electronic open-loop and closed-loop control unit, an inlet valve for each first and second output port, and an outlet valve for each first and second output port. A pressure chamber is connected via a first pressure activation valve to a brake line section to which the at least four inlet valves are connected. If the first electronic control unit fails, an electromechanical actuator is activated by the second electronic control unit and builds up pressure to actuate the wheel brakes. If the second electronic control unit fails, the electromechanical actuator is activated by the first control unit and builds up pressure to actuate the wheel brakes.

Abstract: A braking system for a motor vehicle has a plurality of hydraulic brake units for braking each braking one wheel of the motor vehicle and a first electric parking brake actuator for braking a first wheel and a second electric parking brake actuator for braking a second wheel. A first control device comprises a first hydraulic controller which is designed and set up to drive the plurality of hydraulic brake units. In order to ensure parking brake redundancy, the first control device has a driver for driving the first parking brake actuator. A second control device is also provided, which comprises a driver for driving the first parking brake actuator and a driver for driving the second parking brake actuator.

Abstract: A braking system for a motor vehicle has a first and a second parking brake A first and a second control device each have a driver for driving at least the first and/or the second parking brake actuator. The first control device has a first arbitration unit to data whether a parking brake action should be carried out. The second control device has a second arbitration unit to receive parking brake request data and to ascertain from the received data whether a parking brake action should be carried out. The result of the second arbitration unit is fed to the first arbitration unit as parking brake request data and the result of the first arbitration unit is transmitted to the driver of the first and/or second control device for driving the first and second parking brake actuators.

Abstract: A hydraulic braking system has a vacuum brake booster, an ESC system with a hydraulic pump for generating braking force in a wheel-specific manner in a plurality of wheel brakes, an ESC control device for driving the hydraulic pump and a hydraulic pressure sensor for determining a hydraulic pressure in the hydraulic braking system. For electrified vehicles, an electric vacuum pump is provided for supplying the vacuum brake booster, wherein the ESC control device is designed to drive the electric vacuum pump logically and electrically.

Abstract: A method for operating a braking system of a vehicle, wherein the braking system comprises a primary hydraulic braking system and a brake actuation unit hydraulically decoupled from the primary braking system. The brake actuation unit comprises at least two sensor arrangements which are configured to detect, independently of one another, actuation information of the brake actuation unit describing a brake request.

Abstract: A braking system having wheel brakes, a pressure supply device connected to the wheel brakes, a master brake cylinder actuated by a brake pedal and connected to the wheel brakes, and a brake fluid reservoir having a first and a second reservoir chamber separated by a partition wall, wherein the first reservoir chamber is connected to the pressure supply device, via which the pressure supply device is supplied with pressure medium, and the second reservoir chamber is connected to the master brake cylinder, via which the master brake cylinder is supplied with pressure medium The braking system is operated in a first operating mode when the first filling level is reached and a second operating mode when the second filling level is reached, and a hydraulic fallback level if a lowest filling level is reached.

Abstract: A method for operating an electrohydraulic brake installation for a motor vehicle having at least first, second, third and fourth hydraulically actuatable wheel brakes, a first brake system including a master brake cylinder actuatable by a brake pedal and hydraulically connected by at least one electrically actuatable isolating valve to the four wheel brakes, and including a first electrically controllable pressure provision device hydraulically connected to the four wheel brakes via at least one electrically actuatable sequence valve, and a second brake system including a second electrically controllable pressure provision device hydraulically connected to the first and the third wheel brake, and including in each case one isolating valve for the first and third wheel brake. The isolating valve is arranged in each case in a hydraulic connection between the first brake system and the corresponding wheel brake.

Abstract: A method for operating an electrohydraulic brake installation for a motor vehicle having at least first, second, third and fourth hydraulically actuatable wheel brakes, a first brake system including a master brake cylinder actuatable by a brake pedal and hydraulically connected by at least one electrically actuatable isolating valve to the four wheel brakes, and including a first electrically controllable pressure provision device hydraulically connected to the four wheel brakes via at least one electrically actuatable sequence valve, and a second brake system including a second electrically controllable pressure provision device hydraulically connected to the first and the third wheel brake, and including in each case one isolating valve for the first and third wheel brake. The isolating valve is arranged in each case in a hydraulic connection between the first brake system and the corresponding wheel brake.

Abstract: A method for detecting a leak of a hydraulic brake system of a vehicle having at least two wheel brakes. A slip control of the wheel brake assigned to the respective vehicle wheel is carried out by a respective pressure modulation unit. The pressure medium volume delivered by a brake pressure source is detected. A pressure sensor output identifies a model value for the pressure value detected by the pressure sensor. A differential value is determined which indicates the difference between the pressure medium volume delivered and the model value, and the differential value is compared with a threshold, and a leak is reported if the differential value exceeds the threshold.

Abstract: A method for operating a brake system, which brake system includes a master brake cylinder, which is actuated by the driver with the aid of a brake force booster, a driver-independent pressure source, and at least one wheel brake to which a wheel speed sensor is assigned. During a braking operation initiated by the driver, which is identified in particular by a brake lamp switch, the present vehicle deceleration is determined and compared with a predefined threshold value, and the at least one driver-independent pressure source is activated if the determined vehicle deceleration reaches or falls below the predefined threshold value. A brake system for a motor vehicle, which brake system has a control unit in which the method is carried out is also disclosed.

Abstract: A method for operating a brake system of a vehicle which includes a master brake cylinder which can be activated by the driver by a brake pedal, at least one driver-independent pressure source, at least one wheel brake to which a wheel speed sensor is assigned, and a brake activation sensor, wherein it is checked whether a hazardous situation is present, and in the case of a hazardous situation being detected the at least one driver-independent pressure source is activated. A hazardous situation is detected when the change in a measured deceleration over time or the absolute value of a measured deceleration exceeds a predefined hazard threshold value and a brake activation operation is detected. In addition, the invention relates to a brake system for a motor vehicle having brake assistance in hazardous situations which does not require a master brake cylinder pressure sensor.

Abstract: A method for the operation of a brake system having two brake circuits, with a recuperative brake, in particular an electrical generator, a master brake cylinder and a brake pedal simultaneously achieve optimized use of the regenerative braking and a constant braking experience for the driver with the highest safety requirements. When there is a braking demand by the driver with an associated desired braking torque and a first condition is met, at least one outlet valve is opened and brake fluid is conducted with an associated volume of brake fluid into at least one reservoir and the at least one outlet valve is then closed if a second condition is met. The first condition is met if a braking variable corresponding to the braking demand is not less than a specified minimum value. The second condition is met if the volume of brake fluid has flowed into the reservoirs.

Abstract: A method for monitoring the signal value of a vacuum sensor of a vacuum system in a vehicle, wherein a vacuum generator and a brake booster are provided in the vacuum system, an upper error threshold (?p_vac_errorthreshold) is calculated as a function of the operating states of the vacuum generator and of the brake booster, and wherein an error is identified when the signal value of the vacuum sensor exceeds the current value of the error threshold.

Abstract: A method for operating a brake system, which brake system includes a master brake cylinder, which is actuated by the driver with the aid of a brake force booster, a driver-independent pressure source, and at least one wheel brake to which a wheel speed sensor is assigned. During a braking operation initiated by the driver, which is identified in particular by a brake lamp switch, the present vehicle deceleration is determined and compared with a predefined threshold value, and the at least one driver-independent pressure source is activated if the determined vehicle deceleration reaches or falls below the predefined threshold value. A brake system for a motor vehicle, which brake system has a control unit in which the method is carried out is also disclosed.

Abstract: The invention relates to a method for operating a braking system, including a brake booster, which is divided into at least one vacuum chamber and at least one working chamber by at least one movable partition, wherein at least one vacuum chamber is connected, or can be connected, to a vacuum source for creating a vacuum, and further including at least one sensor, which detects at least one variable such as travel and/or angle and/or force of a brake pedal actuation and/or a brake pressure that is built up in at least one main brake cylinder connected to the brake booster in accordance with a brake pedal actuation. According to the invention, the remaining vacuum in at least one vacuum chamber is estimated on the basis of at least one of the detected variables by considering actuations already performed. The invention further relates to a braking system and to the use thereof.

Abstract: In order to impart a pleasant brake pedal feeling to the operator in the transition from a ‘conventional mode’ to a ‘brake-by-wire’ mode, it is disclosed that the travel (s) covered upon application of the brake pedal is determined and subsequently reduced by the operator, and in that upon reduction of the actuating travel (s) by a predetermined value (?s) or in the event of a detected vehicle movement or a positive result of a monitoring function of the connecting and disconnecting device running in the background, the connecting and disconnecting device is activated and the brake booster is actuated by the electronic control unit.

Abstract: A method for monitoring the signal value of a vacuum sensor of a vacuum system in a vehicle, wherein a vacuum generator and a brake booster are provided in the vacuum system, an upper error threshold (?p_vac_errorthreshold) is calculated as a function of the operating states of the vacuum generator and of the brake booster, and wherein an error is identified when the signal value of the vacuum sensor exceeds the current value of the error threshold.

Abstract: An electronically controllable brake system includes an electronic controller installed within the motor vehicle for actuating electrohydraulic components of the brake system and for operating the electrohydraulic components during the process of filled with hydraulic fluid and for removing air from hydraulic components of the brake system. A filling sequence is performed according to a predetermined filling profile that utilizes on-board sensors that detect brake system pressure and identify a defined pressure in conformity with a desired filling profile.

Abstract: A method for the operation of a brake system having two brake circuits, with a recuperative brake, in particular an electrical generator, a master brake cylinder and a brake pedal simultaneously achieve optimized use of the regenerative braking and a constant braking experience for the driver with the highest safety requirements. When there is a braking demand by the driver with an associated desired braking torque and a first condition is met, at least one outlet valve is opened and brake fluid is conducted with an associated volume of brake fluid into at least one reservoir and the at least one outlet valve is then closed if a second condition is met. The first condition is met if a braking variable corresponding to the braking demand is not less than a specified minimum value. The second condition is met if the volume of brake fluid has flowed into the reservoirs.

Abstract: Disclosed is a device for influencing the driving dynamics of a vehicle with an electronic brake system. The device includes a brake actuator for adjusting a brake torque at least one wheel brake of the vehicle. The brake torque can be determined in a torque distributing device according to a yaw torque requirement. A first control unit can be activated in the presence of a critical driving condition as is used to determine a first yaw torque requirement due to driving dynamics control. A management device (12) has a second control unit, which can be activated in the presence of a subcritical driving condition, and a second yaw torque requirement (R:D_GM) can be determined by the second control unit due to driving dynamics control, and the second yaw torque requirement (R:D_GM) can be sent to the torque distributing device (20), and an activated state of the first control unit a signal (I:EBS_Status; R: D_GM; R:[S1, S2, . . .