Abstract: A brake system for a motor vehicle, wherein the brake system is divided into two blocks, wherein a separate electric pressure generator is arranged in each block, and a motor vehicle having such a brake system.

Abstract: A method for determining a switching state of a valve that is actuated by a coil, wherein the method includes: respectively ascertaining a current flowing through the coil and a voltage applied to the coil at several times which follow one another with a prespecified time interval, calculating an inductance variable of the coil based on the currents, the voltage and the time interval, and determining the switching state based on the inductance variable. Also disclosed is a solenoid valve assembly.

Abstract: A brake system, including four hydraulically actuatable wheel brakes. Each wheel brake is assigned in each case one outlet valve which is closed when electrically deenergized. Each wheel brake is assigned in each case one inlet valve which is open when electrically deenergized. The brake system furthermore includes a simulator which is actuatable by a brake pedal, wherein two pressure provision devices are provided for actively building up pressure in the wheel brakes, two brake circuits are hydraulically formed, wherein, in each brake circuit, in each case one pressure provision device is hydraulically connected to two wheel brakes, and wherein two separate on-board electrical systems are provided, and wherein each pressure provision device is fed in each case by one of the two on-board electrical systems.

Abstract: A brake device for a hydraulic motor vehicle brake system comprises at least one brake device housing which has a front side oriented substantially in the direction of travel and a rear side oriented counter to the direction of travel after being mounted in the vehicle. At least one pressure medium container is arranged on the brake device housing and has a container housing. The pressure medium container has at least one first connection piece for supplying the brake device with a hydraulic pressure medium, which is oriented substantially parallel or at an acute angle to the direction of travel and plugged in a receiving seat formed in the brake device housing.

Abstract: A motor vehicle brake system includes at least four hydraulically actuatable wheel brakes, a main pressure medium reservoir, at atmospheric pressure, a first electrohydraulic brake control device, which, for each of the four wheel brakes, includes a wheel-specific outlet, and a second electrohydraulic brake control device, which, for each of the four wheel brakes, includes a wheel-specific inlet, connected to the wheel-specific outlet of the first brake control device, a wheel-specific wheel outlet, connected to the wheel brake, and a hydraulic wheel connecting line, connecting the inlet to the wheel outlet. The second brake control device includes a first pump with a first pressure side and first suction side. The first pressure side connected to a first and second wheel connecting line, and a second pump with a second pressure side and second suction side. The second pressure side connected to the third and the fourth wheel connecting line.

Abstract: A method for determining a switching state of a valve that is actuated by a coil, wherein the method includes: respectively ascertaining a current flowing through the coil and a voltage applied to the coil at several times which follow one another with a prespecified time interval, calculating an inductance variable of the coil based on the currents, the voltage and the time interval, and determining the switching state based on the inductance variable. Also disclosed is a solenoid valve assembly.

Abstract: An auxiliary module for an electrohydraulic brake assembly, in particular for use in highly automated driving, including a hydraulics unit with a pressure provision device for building up pressure in at least two brakes, wherein at least one reservoir for brake fluid is integrated into the hydraulics unit, and a brake assembly system having an auxiliary module.

Abstract: A brake system for a motor vehicle, wherein the brake system is divided into two blocks, wherein a separate electric pressure generator is arranged in each block, and a motor vehicle having such a brake system.

Abstract: A motor vehicle brake system includes at least four hydraulically actuatable wheel brakes, a main pressure medium reservoir, at atmospheric pressure, a first electrohydraulic brake control device, which, for each of the four wheel brakes, includes a wheel-specific outlet, and a second electrohydraulic brake control device, which, for each of the four wheel brakes, includes a wheel-specific inlet, connected to the wheel-specific outlet of the first brake control device, a wheel-specific wheel outlet, connected to the wheel brake, and a hydraulic wheel connecting line, connecting the inlet to the wheel outlet. The second brake control device includes a first pump with a first pressure side and first suction side. The first pressure side connected to a first and second wheel connecting line, and a second pump with a second pressure side and second suction side. The second pressure side connected to the third and the fourth wheel connecting line.

Abstract: Braking system for motor vehicles, with a primary brake control unit comprising at least one electrically actuable wheel valve for each wheel brake, for the purposes of setting wheel-specific brake pressures; a pressure medium storage tank which is at atmospheric pressure; and an electrically controllable pressure provision device for actuating the wheel brakes with a hydraulic pressure chamber, wherein the respective wheel brake is connected or can be connected hydraulically to the pressure chamber; wherein the braking system comprises a simulation unit with a simulator which can be actuated with the aid of a brake pedal, and an auxiliary module, wherein the auxiliary module comprises a hydraulic unit with an, in particular, electrically controllable, pressure provision device for active pressure build-up in at least two of the wheel brakes, and wherein the simulation unit is designed as a separate module.

Abstract: A brake system, including four hydraulically actuatable wheel brakes. Each wheel brake is assigned in each case one outlet valve which is closed when electrically deenergized. Each wheel brake is assigned in each case one inlet valve which is open when electrically deenergized. The brake system furthermore includes a simulator which is actuatable by a brake pedal, wherein two pressure provision devices are provided for actively building up pressure in the wheel brakes, two brake circuits are hydraulically formed, wherein, in each brake circuit, in each case one pressure provision device is hydraulically connected to two wheel brakes, and wherein two separate on-board electrical systems are provided, and wherein each pressure provision device is fed in each case by one of the two on-board electrical systems.

Abstract: An auxiliary module for an electrohydraulic brake assembly, in particular for use in highly automated driving, including a hydraulics unit with a pressure provision device for building up pressure in at least two brakes, wherein at least one reservoir for brake fluid is integrated into the hydraulics unit, and a brake assembly system having an auxiliary module.

Abstract: A pulsation damping capsule for connection to the pressure side of a piston pump having a metal membrane housing that is assembled from two membrane shells joined together in a hermetically sealed manner. The metal membrane housing separates an internal space from a surrounding pressure medium. The membrane shells are connected along a circumferential seam such that the pulsation damping capsule can compress and expand in a resilient-elastic manner as an energy convertor when subjected to external pressure as a result of pressure medium pulses. A reshapeable mass is arranged in the internal space and when the membrane shells are in the resilient-elastically compressed state, the mass completely fills an intermediate space that remains between the two membrane shells, so that the mass is precisely matched to the internal contour of the reshaped membrane shells while avoiding the formation of hollow spaces.

Abstract: The invention relates to an hydraulic unit for a motor vehicle brake system which operates according to the feedback principle, for which purpose a low-pressure accumulator is provided between the outlet valves of the wheel brakes and a pump, and the piston of which low-pressure accumulator, in the basic position, disconnects the hydraulic connection between a pressure medium chamber and a connection leading to the pump such that, in the empty state of the low-pressure accumulator, the wheel brakes are reliably disconnected from the suction side of the pump.

Abstract: A hydraulic vehicle brake system including a brake line for conducting a hydraulic pressure medium and a master cylinder attached to a non-pressurized storage vessel. A wheel brake has a first pressure modulation valve on the inlet side and a second pressure modulation valve and a low-pressure accumulator on the outlet side of the wheel brake. A pump is disposed on a return line downstream of the low-pressure accumulator for removing pressurizing medium from the low-pressure accumulator to regulate the brake pressure via the first pressure modulation valve and also via an isolation valve disposed in the brake line upstream of the first pressure modulation valve. An electromagnetically opening changeover valve is inserted in a pump suction line discharging into the return line between the master cylinder and the low-pressure accumulator. The pressure provided by the master cylinder can be fed to the low-pressure accumulator, bypassing the wheel brake.

Abstract: The invention relates to a piston pump having a pump housing including a plurality of pump components determining the function of the piston pump, such as a pump piston which is guided in sections, a piston return spring, and a suction and pressure valve. The piston pump also has an annular chamber which delimits the pump piston on the suction side and is designed as a compensating chamber for the liquid, a delivery chamber which delimits the pump piston on the pressure side, and an elastic sealing ring for sealing the pump piston in the direction of a pump drive chamber. To prevent leakage in the direction of the pump drive chamber, the elastic sealing ring is provided with a groove into which is inserted a spring element which presses the sealing ring against the pump piston.

Abstract: The invention relates to an hydraulic unit for a motor vehicle brake system which operates according to the feedback principle, for which purpose a low-pressure accumulator is provided between the outlet valves of the wheel brakes and a pump, and the piston of which low-pressure accumulator, in the basic position, disconnects the hydraulic connection between a pressure medium chamber and a connection leading to the pump such that, in the empty state of the low-pressure accumulator, the wheel brakes are reliably disconnected from the suction side of the pump.

Abstract: A brake system includes a main brake cylinder and a pedal decoupling unit provided with a holding piston, the first ring surface thereof together with a first primary brake cylinder piston defining a first hydraulic chamber that is hydraulically pressurized with an electrically controllable pressure supply device. In order to improve the pedal characteristics of the brake system, in particular in a brake-by-wire brake system, the holding piston is embodied as a differential piston, the second ring surface thereof defining a second, blockable hydraulic chamber, and a piston effect in the second chamber corresponds to a force that acts counter to the direction of actuation on the holding piston.

Abstract: A hydraulic vehicle brake system including a brake line for conducting a hydraulic pressure medium and a brake pressure sensor attached to a non-pressurized storage vessel. The brake wheel has a first pressure modulation valve on the inlet side and a second pressure modulation valve on the outlet side of a low-pressure accumulator. A pump is disposed on the return line upstream of the low-pressure accumulator for removing pressurizing medium from the low-pressure accumulator to regulate the brake pressure via the first pressure modulation valve and also via an isolation valve disposed in the brake line upstream of the first pressure modulation valve. An electromagnetically opening changeover valve is inserted in a pump suction line discharging into the return line between the brake pressure sensor and the low-pressure accumulator. The pressure acting on the brake pressure sensor can be fed to the low-pressure accumulator, bypassing the wheel brake.

Abstract: An externally actuable electrohydraulic vehicle brake system including an externally actuable electrohydraulic vehicle system with slip control. In order to make available a brake system which permits highly dynamic pressure build-up processes without throttling effects in the suction path, in particular through a master cylinder, being adversely affected, it is proposed that the hydraulic pump be assigned means which permit the hydraulic pump additionally to drive a hydraulic charging device which is connected to an inlet of the hydraulic pump.