Abstract: A motor vehicle braking system and method operable in a brake-by-wire mode and independently of the driver, with a master brake cylinder (2) operated by a brake pedal (1) having a piston (15, 16) and a pressure chamber (17, 18), connected with a brake circuit (I, II) and wheel brakes (8,9, 10, 11). An electrically controllable pressure supplying device (5) operates the wheel brakes; and a simulation device (3) with at least one elastic element (33), provides an acceptable brake pedal feel in the brake-by-wire mode. The simulation device (3) has a simulator chamber (29) connected, or is hydraulically connected, through a first hydraulic connection (54) to the pressure chamber (17) and which has an electrically actuated isolation valve (28) with a pressure means reservoir (4) under atmospheric pressure. A media separator device (47) is arranged in the connection (46) between the simulator chamber (29) and the isolation valve (28).

Abstract: A method and system for operating a motor vehicle brake system, including several wheel brakes, an electrically controllable pressure supply device, dispenses a pressure medium volume for actuating the brakes, and an analogized or analog-controlled inlet valve, arranged in each wheel brake between the pressure supply device and wheel brake, for adjusting wheel-individual brake pressures. A check valve is connected in parallel to each inlet valve. At the start of a wheel-individual brake pressure control, all inlet valves are closed, and a pressure build-up is carried out in a predetermined group of one or more wheel brakes by displacing a pressure medium volume into the predetermined group of wheel brakes by the pressure supply device. Each inlet valve of the predetermined group is controlled such that the inlet valve is overflowed, wherein each inlet valve of the remaining wheel brakes is controlled such that the inlet valve remains closed.

Abstract: A method for determining a driving characteristic of an analogized or analog-controlled hydraulic valve of a motor vehicle hydraulic brake system in which a brake pressure generated with the aid of an electrically controllable, electric-motor-driven pressure supply device, is conducted to a wheel brake via an inlet valve and can be conducted via an outlet valve from the wheel brake into a pressure medium container. The pressure supply device and the inlet valves, and outlet valves, can be controlled by an electronic control unit. For determining the control characteristic of an analogized or analog-controlled inlet or outlet valve, a brake pressure is generated by the control unit via the pressure supply device, and the brake pressure is determined by a pressure sensor associated with the pressure supply device. The determined brake pressure and an associated valve control variable are stored as a calibration point of the control characteristic.

Abstract: A method and system for operating a brake system for motor vehicles, including a plurality of wheel brakes for which wheel-individual nominal pressure includes an electrically controllable pressure supply device, to provide a brake system pressure for actuating the wheel brakes. The brake system pressure provided by the pressure supply device can be determined. An electrically controllable inlet valve and electrically controllable outlet valve per wheel brake adjust wheel-individual brake pressures.

Abstract: A brake actuating unit (1, 1?) for a brake-by-wire motor vehicle brake system having a housing (10), a first hydraulic cylinder/piston arrangement (3) to which a plurality of wheel brakes connectable. The piston being operable by a push rod (2) transmitting an actuating force, an electrically controllable pressure supplying device (6) in the form of a second hydraulic cylinder/piston arrangement (12), actuated by an electric motor (7). A number of valves (41, 42, 43) for setting wheel-individual brake pressures and for disconnecting or connecting the wheel brakes with the first or the second cylinder/piston arrangement (3, 12). The valves and the second cylinder/piston arrangement are arranged at least partially inside the housing (10), the axis of the electric motor (7) being arranged substantially perpendicular to the longitudinal axis (30) of the first cylinder/piston arrangement (3).

Abstract: A brake system includes a hydraulic actuating unit, which can be actuated by way of a brake pedal, a travel simulator interacting with the hydraulic actuating unit, a pressure medium reservoir under atmospheric pressure assigned to the hydraulic actuating unit, a first electrically controllable pressure supply device, a second electrically controllable pressure supply device, an electronic control unit and an electronically controllable pressure modulation device for setting wheel-specific brake pressures. The brake system preferably operates in a “brake-by-wire” mode but can also operate in a fallback mode. The second electrically controllable pressure supply device can provide boost volume during braking in a fallback mode.

Abstract: A motor vehicle brake system operable in a brake-by-wire and fallback modes. The system includes a brake pedal (1), a master cylinder (2), a reservoir (4), a travel simulator (3), an electrically controllable pressure source (5), isolation valves (23a, 23b) pumps (32a, 32b) and a low-pressure accumulator (14a, 14b), an inlet valve (6a-6d) and an outlet valve (7a-7d) for each wheel brake (8, 9, 10, 11), valves (34a, 34b; 134a, 134b) connected to the pumps (32a, 32b), and a control and regulation unit (110, 210). A valve arrangement (23a, 23b) establishes for each brake circuit (I, II) a connection from the pressure chamber (17, 18) of the master cylinder (2) to the modulator admission pressure line (13a, 13b; 113a, 113b) and disconnects the connection when unenergized, the valve arrangement (23a, 23b) preventing the pressure source (5) from being subjected to pressure from the pressure chambers (17, 18).

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: 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.

Abstract: A braking system for motor vehicles. The system comprises a brake pedal, a travel simulator which is coupled via actuating-forces transmitting first mechanical connecting means to the brake pedal. A brake master cylinder having at least one pressure chamber and one piston. The pressure chamber is connected or connectable via a pressure line to at least one hydraulically actuable wheel brake, and an electrically controllable electromechanical drive device with which the piston of the brake master cylinder is actuable via a second mechanical connecting means. The electromechanical drive device is arranged between the brake pedal on one side and the brake master cylinder and the travel simulator on the other side. The first mechanical connecting means extends from the brake pedal through the drive device to the travel simulator.

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: An electrohydraulic unit assembly for a motor vehicle includes a receiving body defining a sealing face and at least two connectors fastened to the receiving body of the unit, oriented substantially parallel one to another and separated by a defined distance from one another. Each connector is configured for connecting a fluid conduit to the unit. Each connector includes a screw fitting for fastening the respective hydraulic connection to the receiving body of the unit such that a sealing face of the screw fitting or a sealing face of the fluid conduit is seated on the sealing face of the receiving body. Each screw fitting is rotatably connected to the body and includes two spanner flat portions having different spanner widths.

Abstract: An electrohydraulic aggregate for converting electric energy into mechanical energy, comprising an electric motor with a stator and with a rotor, comprising magnets or electric windings that produce electromagnetic fields, at least one connecting component for connecting the windings to at least one energy supply, with the connecting component extending through at least one through-hole, the through-hole is provided in an accommodating member accommodating electrohydraulic valves as well as at least one piston pump for the energy supply of a slip-controlled brake system, the piston pump being connected to the electric motor by a gear, and a rotor mounting support comprising at least two spaced rotor bearings, of which at least one so-called A-bearing supports a shaft in the accommodating member, and a so-called B-bearing that is supported in a pot-shaped motor housing.

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: 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.

Abstract: Disclosed is an electrically controllable valve accommodating in its valve housing (4) a second valve member (6) that is operable by the first valve member (2) in order to be able to variably adjust a second valve opening cross-section (A2) that is arranged in series to the first valve opening cross-section (A1), and a third valve opening cross-section (A3) that is releasable by means of the first valve member (2) is positioned in series arrangement to the first valve opening cross-section (A1) in order to limit the hydraulic pressure to a mechanically preset value.

Abstract: In order to embody an electrohydraulic brake system of the brake-by-wire type in a way which is optimized in terms of installation space, it is proposed that a booster device for boosting the activation force which is transmitted to a pressure sensor by the brake pedal is composed of a booster module, which is connected upstream of the pressure sensor, and of a hydraulic pressure source, and in that the pressure sensor forms, with the booster module, a first functionally capable assembly which can be handled independently, and a pressure source, an electronic open-loop and closed-loop control unit and a valve block which accommodates the pressure control valves form a second functionally capable assembly which can be handled independently and which is arranged spatially separate from the first assembly.

Abstract: A controllable valve includes an axial working air gap arranged on a side of magnet armature that cooperates with a valve closure member the side facing away from the valve closure member so that upon electric actuation of the actuating drive, the valve closure member is movable by the actuating drive in the direction of the first valve seat surface.

Abstract: An electrohydraulic unit assembly for a motor vehicle comprising a receiving body defining a sealing face and at least two connectors fastened to the receiving body of the unit, oriented substantially parallel one to another and separated by a defined distance from one another. Each connector is configured for connecting a fluid conduit to the unit. Each connector includes a screw fitting for fastening the respective hydraulic connection to the receiving body of the unit such that a sealing face of the screw fitting or a sealing face of the fluid conduit is seated on the sealing face of the receiving body. Each screw fitting is rotatably connected to the body and includes two spanner flat portions having different spanner widths.

Abstract: Disclosed is an electrically controllable valve accommodating in its valve housing (4) a second valve member (6) that is operable by the first valve member (2) in order to be able to variably adjust a second valve opening cross-section (A2) that is arranged in series to the first valve opening cross-section (A1), and a third valve opening cross-section (A3) that is releasable by means of the first valve member (2) is positioned in series arrangement to the first valve opening cross-section (A1) in order to limit the hydraulic pressure to a mechanically preset value.