Abstract: The present invention relates to a method for carrying out an automatic braking action, wherein at least one quantity representative of the application of the brake pedal is determined and an automatic braking action is triggered when at least one limit value (brake pedal application limit value) of the quantity representative of the application of the brake pedal is exceeded, wherein the brake pedal application limit value is modified or the quantity representative of the brake pedal is weighted according to at least one action of the driver, in particular a detected movement of the driver's foot, prior to an application of the brake pedal of the braking action considered or prior to the considered braking action.

Abstract: In a piezoelectrically actuated fluid valve the bending transducer includes another bearing point at its second end remote from the immovable bearing and the valve closure member points to the valve seat in a defined partial span width between the two ends of the bending transducer.

Abstract: In a drive device of a motor vehicle axle steering module comprising an electronic rotary drive, by means of which a steering rod can be displaced or at least displacement of the steering rod can be assisted drivingly by the intermediary of a transmission device, with said displacement causing steerable vehicle wheels to turn, the transmission device includes a supple or twistable clutch and/or a gear unit with a supple or twistable mounting support.

Abstract: In a threaded mechanism with rolling bodies comprising a spindle rod, a spindle nut at least partially enclosing said spindle rod, and a number of interposed rolling bodies, an axial and radial mounting support is provided for the spindle nut that is adapted to receive both tilting movements of the spindle nut about its longitudinal axis as well as radial movements transversely to its longitudinal axis.

Abstract: The present invention discloses a pressure fluid accumulator with a housing having its interior subdivided into two chambers by a media-separating element, the first chamber being filled with a gas and the second chamber being filled with a liquid, and wherein in a hydraulic port a bottom valve is provided whose closure member is operable by the media-separating element and which permits filling the second chamber with liquid and prevents complete evacuation of the second chamber. In order to prevent a damage of the bottom valve and an inadvertent escape of fluid and, thus, ensure a considerable increase in the reliability in operation, according to the present invention, the closure member can be moved by the media-separating element to adopt a position in which it fulfils the function of a hydraulic piston.

Abstract: The present invention relates to a pressure sensor unit, in particular for a pressure control device, comprising a carrier housing for holding several pressure sensors, wherein the carrier housing accepts the pressure sensors as a modular assembly that can be preliminarily tested and forms an independent subassembly preferably arranged between a first and second housing of the pressure control device.

Abstract: An electronically controllable brake actuation system for motor vehicles is proposed, with a master brake cylinder (2), with a pressureless pressure medium reservoir (3), with a pressure source (20) which can be controlled by means of an electronic control unit (32), by means of which pressure can be applied to the wheel brakes (7, 8, 9, 10) of the vehicle, which can be connected by means of at least one hydraulic connection (11, 14), which can be shut off by means of a separating valve (12, 15), to the master brake cylinder (2), with a device (13, 33) for the recognition of the driver's wish to slow down, and with at least one separating piston arrangement (16) which is connected before the wheel brakes (7-10), where the first chamber (17) of this separating piston arrangement can be connected to the master brake cylinder (2), and its second chamber (19) can be connected through a valve device (27) to the pressure source (20) or to the pressure medium reservoir (3).

Abstract: A hydraulic brake system with electronic anti-lock control contains, as essential components, a pedal actuated brake pressure transducer (1), electrically actuated inlet and outlet valves (EV1 to EV4, AV1 to AV4), wheel sensors (S1 to S4) and an electronic control circuit (6). The brake pressure transducer (1) is equipped with one or more path sensors (5), for the direct or indirect determination of the pedal path (S). Interdependent with the current driving conditions, the brake situation and the pedal path (S), the anti-lock control is switched from a standard control mode into a safety control mode, which essentially permits only a brake pressure increase in the front wheels and a brake pressure decrease in the rear wheels during an anti-lock control procedure. A limit value (SpGrenz) of the pedal advancement is determined interdependent with the driving conditions and the brake situation, and upon exceeding such a switch over takes place into the safety control mode.

Abstract: A two-tube shock absorber for automotive vehicles is furnished with a shock absorber valve positioned at the lower end of its power cylinder and comprising a pilot control stage, a main stage to adjust its "soft" characteristic curve which is desired for reasons of driving comfort, or a special characteristic curve out of a field of potential characteristic curves. According to the invention, in a lower range of piston speed the shock absorbing power is determined exclusively by the variable cross-sectional area of flow of the pilot control stage wherein the main stage remains closed. In an upper range of piston speed the shock absorbing power is determined by the variable flow cross-sectional areas both of the main stage and of the pilot control stage.

Abstract: A two-tube shock absorber for automotive vehicles is furnished with a shock absorber piston and an electromagnetically actuatable unidirectional shock absorber valve to adjust a "smooth" characteristic which is desired for enhancing driving comfort. The shock absorber valve is alternatively configurated in the shape of a single-stage, or a two-stage slide valve. The position of the slide depends on the hydraulic pressure differential which decreases above the shock absorber valve, the volumetric stream which flows through the shock absorber valve, and the actuating current of the electromagnetic actuating unit. The inventive shock absorber allows the selection of a special characteristic curve out of a family of potential characteristic curves. Simultaneously, the sensitivity of the shock absorber to errors of the electromagnetic actuation is eliminated.