Abstract: The invention relates to a cup-shaped hydraulic piston (10) made from rolled sheet metal, which comprises an open end (12), a side wall (16) with a cylindrical outer surface (18) and an inner surface (22), as well as a piston head (14). The side wall (16) at its outer surface (18) is provided with an annular groove (20) in a portion adjoining the open end (12). To ensure a lightweight style of construction combining high stability with ease of manufacture, the part of the inner surface (22) adjoining the open end (12) and extending axially over the annular groove (20) has a cylindrical shape, and the thickness of the side wall (16) decreases monotonically from the portion (24) of the inner surface (22) up to the piston head (14).

Abstract: The present invention relates to a method and a device for controlling braking equipment of a motor vehicle. Here, an operating state of a motor vehicle is determined, in which the motor vehicle is to be brought from a state, in which its speed is not zero, into a state, in which the vehicle no longer moves. If such a transition from a traveling state into a state of standstill is determined, braking equipment of the motor vehicle is controlled such that braking forces are produced, which are capable of bringing the motor vehicle into the state of standstill and/or assisting a vehicle driver in doing this. It is also possible to produce braking forces in the state of standstill, which are capable of holding the motor vehicle in the state of standstill. The present invention additionally enables to assist a vehicle driver when starting a motor vehicle. In this case, an operating state of the motor vehicle is detected in which the motor vehicle is to be brought from a state of standstill into a traveling state.

Abstract: The invention relates to an anti-lock braking system as well as to a method of operating the anti-lock braking system. As a function of the motional state of at least one wheel control commands are generated for at least one actuator (12) of the anti-lock braking system. During generation of the control commands a quantity characteristic of the vertical tyre force is taken into account.

Abstract: System for evaluating the driving environment of a motor vehicle and for influencing the speed of the motor vehicle, with an electronic control unit (ECU) which is connected to a signal transmitter generating a signal characteristic of the desired speed of the motor vehicle, a signal transmitter generating a signal characteristic of the rate of revolutions of the motor vehicle about its vertical axis, a signal transmitter which generates a signal characteristic of objects located in the area in front of the motor vehicle in the direction of travel of the motor vehicle in respect of their distance from and orientation to the motor vehicle, which is the speed relative to the speed of one's own motor vehicle and/or the distance relative to one's own motor vehicle and/or the angle offset or the lateral drift relative to the vehicle longitudinal axis of one's own motor vehicle, and a signal transmitter generating a signal characteristic of the speed of at least one wheel of the motor vehicle and which electronic c

Abstract: System for evaluating the traffic environment of a motor vehicle and for influencing the speed of the motor vehicle in its own traffic lane, comprising an electronic control unit (ECU), which is connected to a signal transmitter that produces a signal characteristic of the desired speed of the motor vehicle, a signal transmitter that produces a signal characteristic of the yaw of the motor vehicle about its vertical axis, a signal transmitter that produces a signal characteristic of the articles situated, in the direction of travel of the motor vehicle, in front of the motor vehicle in terms of their spacing and orientation relative to the motor vehicle and which reproduces the speed relative to the speed of the system motor vehicle and/or the spacing relative to the system motor vehicle and/or the angular offset or the cross track distance relative to the vehicle longitudinal axis of the system motor vehicle, and a signal transmitter that produces a signal characteristic of the speed of at least one wheel of

Abstract: The performance of a system for controlling vehicle-movement dynamics, which operates the braking system and the drive train of a vehicle in order to prevent lateral breakaway of the vehicle, is improved yet further for the case in which oversteering of the vehicle is to be compensated. To this end it is proposed, according to the invention, that a braking moment be produced on the front wheel on the outside of the bend by the braking system, and an additional drive moment be built up by the drive train on the driven wheels.

Abstract: System for evaluating the traffic environment of a motor vehicle and for influencing the speed of the motor vehicle in its own traffic lane, comprising an electronic control unit, which is connected to a signal transmitter that produces a signal characteristic of the desired speed of the motor vehicle, a signal transmitter that produces a signal characteristic of the yaw of the motor vehicle about its vertical axis, a signal transmitter that produces a signal, which is characteristic of the articles situated, in the direction of travel of the motor vehicle, in front of the motor vehicle in terms of their spacing and orientation relative to the motor vehicle and which is the speed relative to the speed of the system motor vehicle and/or the spacing relative to the system motor vehicle and/or the angular offset or the cross track distance relative to the vehicle longitudinal axis of the system motor vehicle, and a signal transmitter that produces a signal characteristic of the speed of at least one wheel of the

Abstract: A hydraulic fluid container (10) for a vehicle hydraulic brake system comprises at least one connecting sleeve (14), in which a valve member (20) is displaceably guided. The valve member (20) in a first position, into which it is spring-biased, blocks the connecting sleeve (14) and in a second position clears the connecting sleeve (14). On its circumferential surface the valve member (20) is provided with at least one radially elastic detent element (32; 32?). The connecting sleeve (14) in its inner side wall (36) has at least one recess, into which the detent element (32; 32?) latches during introduction of the valve member (20) into the connecting sleeve (14) and which in relation to the direction of displacement of the valve member (20) forms a stop, which defines the first position of the valve member (20).

Abstract: The invention relates to a disc brake (10) having two brake shoes (12, 14), which for generating a clamping force (A, A?) are pressable against both sides of a brake disc (16), and having an actuator device (26) for actuating at least one of the brake shoes (12, 14). The disc brake (10) has a detection device, which detects the coming-into-abutment of at least one of the brake shoes (12, 14) against the brake disc (16) and during the coming-into-abutment adopts a characteristic state. This discrete state may be a switching state electrically evaluable for open- or closed-loop control purposes and may be used for open- or closed-loop control of a brake system comprising the disc brake (10).

Abstract: The invention relates to a composite component, in particular a valve (10), and to a method for producing the composite component.

Abstract: A master cylinder (10) for a vehicle hydraulic brake system has a housing (12), which has a bore (14), which extends along a longitudinal axis (A) and is sealingly closed at one end by an end wall forming part of the housing (12) of the master cylinder (10) and at the other, opposite end by a closure element (16). A piston (18), which is guided in the bore (14), extends in a sealing and axially displaceable manner through the closure element (16). A central valve (20) is formed on the piston (18) and enables a fluid connection between a fluid reservoir and a pressure chamber (28) delimited in the bore (14) by the end wall and the piston (18) and, in the non-actuated state of the piston (18), is held in open position by an abutment component (34) acting upon the closure element (16).

Abstract: A vacuum brake booster (10) is described, comprising a vacuum chamber (16) and a working chamber (18) separated from each other by a movable wall (14), as well as a control valve (20) which comprises a housing (22) coupled workingly to the movable wall and which is capable of controlling the supply of atmospheric pressure or above-atmospheric pressure to the working chamber (18) in dependence upon the displacement of an input element (26) of the brake booster (10) to achieve a pressure difference at the movable wall (14). The vacuum brake booster (10) has a sensing disk (30), which is disposed in an axially displaceable manner inside the control valve housing (22), as well as a coupling device (66), which introduces forces acting counter to the actuating direction upon the sensing disk (30) in a coupled position into the control valve housing (22) and in an uncoupled position via an actuating piston (28) into the input element (26).

Abstract: A load-transmitting arrangement (14) with articulated function for taking up and transmitting a pedal force, in particular a brake pedal force, is described. A braking device (10) of a brake system comprising the load-transmitting arrangement (14) is further described. The load-transmitting arrangement (14) has a first load-transmitting member (20), which has a receiving sleeve (20A) for a second load-transmitting member (22), an end of the second load-transmitting member (22) that projects into the receiving sleeve (20A) engaging behind a snap element (30B), which locks the second load-transmitting member (22) against withdrawal from the receiving sleeve (20A). The end of the second load-transmitting member (22) that engages behind the snap device (30) is a joint head, which is supported pivotally inside the receiving sleeve (20A). The second load-transmitting member (22) is coupled movably to a support device (32), against which the snap element (30B) is non-pivotally supported.

Abstract: A brake booster having an input element (20) for actuating the brake booster is described. The input element (20) at its end facing a brake pedal has a receiving sleeve (20A) for an actuating rod (34), which is to be coupled to the brake pedal. Disposed inside the receiving sleeve (20A) is a spring sleeve (36) comprising at least one spring element (36C, 36D), which cooperates with the actuating rod (34) when the latter is brought into a detent position in relation to the input element (20). The spring element (36C, 36D) extends substantially in axial direction and is actuable in a spring-elastic manner in a radially outward direction. The spring sleeve (36) at its brake pedal-side end has a radially outwardly extending portion (36F), which is fastened by means of a bead (20D) of the receiving sleeve (20A) to the receiving sleeve (20A).

Abstract: A pneumatic brake booster (10), in particular for motor vehicles, is described. The pneumatic brake booster (10) has a control valve (22) for controlling a pneumatic pressure difference, a force input element (24) for actuating the control valve (22), a force output element (38) for transmitting the braking force as well as a reaction disk (34) of elastomer material disposed between the force output element (38) and the force input element (24). Disposed between the reaction disk (34) and the force input element (24) and acting upon the reaction disk (34) is a unit (30) for altering the force transmission ratio between the force input element (24) and the force output element (38) in dependence upon the force exerted upon the force input element (24). The unit (30) comprises a displaceable inner piston (50) as well as an outer piston (54), which surrounds the radially outer side of the inner piston (50) and is displaceable relative to the inner piston (50).

Abstract: The floating caliper of a disk brake has three bridge arms, which extend over the brake disk, wherein one of the bridge arms, preferably the middle arm (34), is bifurcated into two branches (34a, 34b).

Abstract: A vacuum brake booster (10) is described, comprising a vacuum chamber (16) and a working chamber (18) separated from each other by a movable wall (14). The vacuum brake booster (10) includes an emergency braking aid comprising a permanent magnet (38), which is disposed in the control valve housing (22), and an armature (36A) which cooperates with the permanent magnet (38) and in the event of emergency braking is drawn into abutment with the permanent magnet (38), with the result that a control valve (20) is held open for the supply of atmospheric pressure or above-atmospheric pressure to the working chamber (18). The permanent magnet (38) and the armature (36A) form a two-component magnetic module (36A, 38), of which a first component is rigidly coupled to an actuating piston (28) of the brake booster (10).

Abstract: The fundamental approach of the present invention is to dispose bushes, in which pistons of a pumping apparatus for a vehicle brake system are movably disposed, in such a movable manner that they themselves may in dependence upon movements of the pistons act as pistons in order to supply brake fluid to the vehicle brake system. In particular, the bushes, whose pistons are pumping brake fluid into an associated brake circuit, do not act as pistons. On the other hand, brake fluid is fed back into a brake circuit by bushes, whose pistons are pumping substantially no brake fluid into the brake circuit but are taking in e.g. brake fluid removed from the vehicle brake system in order subsequently to pump it back into the brake circuit.

Abstract: A vacuum brake booster (10) is described, having a vacuum chamber (16) and a working chamber (18) separated from one another by a movable wall (14), and a control valve (20), which comprises a housing (12) coupled workingly to the movable wall (14) and which to achieve a pressure difference at the movable wall (14) is capable of controlling the supply of atmospheric pressure or above-atmospheric pressure to the working chamber (18) in dependence upon the displacement of an actuating piston (28). The vacuum brake booster (10) has an emergency braking aid comprising a permanent magnet (38) and an armature (36), which cooperates with the permanent magnet (38) and is resiliently biased counter to actuating direction and during an emergency braking operation is drawn into abutment with the permanent magnet (38), with the result that the control valve (20) is held open for the supply of atmospheric pressure to the working chamber (18).

Abstract: An assembly (20) for use in a vehicle suspension system for connection with a wheel (14) of a vehicle includes first and second hollow hydroformed sections (42 and 44). In one embodiment of the assembly (20), upper and lower pivot mountings (110 and 68) are connected with the hollow hydroformed sections (42, 44). A wheel mounting section (24) is pivotally connected with the upper and lower pivot mountings (110 and 68). The pivot mountings (110, 68) allow the steerable vehicle wheel (14) to be turned to effect steering of a vehicle (10). The assembly (20) may be utilized in association with a vehicle wheel (16) which is not steerable. When the assembly is utilized in the vehicle wheel (16) which is not steerable, the pivotal wheel mounting section (24) may be eliminated.