Abstract: A method for monitoring the condition of an electronic power steering apparatus or of at least one part of the electronic power steering apparatus of a motor vehicle includes continually capturing acceleration measured values in a region of the electronic power steering apparatus during a driving mode of the motor vehicle and continually providing the captured acceleration measured values to a damage computation section in the form of a damage meter that continuously sums the acceleration measured values and continually forms therefrom at least one variable characterizing a degree of damage to the electronic power steering apparatus or to the at least one part of the electronic power steering apparatus. The method further includes continually comparing the variable with at least one prescribed limit value.

Abstract: A method for monitoring the condition of an electronic power steering apparatus or of at least one part of the electronic power steering apparatus of a motor vehicle includes continually capturing acceleration measured values in a region of the electronic power steering apparatus during a driving mode of the motor vehicle and continually providing the captured acceleration measured values to a damage computation section in the form of a damage meter that continuously sums the acceleration measured values and continually forms therefrom at least one variable characterizing a degree of damage to the electronic power steering apparatus or to the at least one part of the electronic power steering apparatus. The method further includes continually comparing the variable with at least one prescribed limit value.

Abstract: A device for pressing a first transmission element onto a second transmission element engaging in the first transmission element for a rack-and-pinion steering system of a motor vehicle. A pressure piece that can be loaded in the direction of the first transmission element by at least one spring element is displaceably guided in a housing. The spring element is produced from at least one dilatant elastomer.

Abstract: A device for securing a unit in a housing, in particular for securing a fixed bearing of a pinion in a steering gear of a motor vehicle, comprises a securing element which is inserted into a bore in the housing. The securing element is provided with at least one latching lever, wherein the at least one latching lever latches into toothing gaps of a toothing geometry in the bore of the housing via a latching lug disposed at the free end of the latching lever, or wherein at least one latching lug is disposed in the bore, which latches into toothing gaps of a toothing geometry in the securing element.

Abstract: A device for pressing a first transmission element onto a second transmission element engaging in the first transmission element, in particular for a rack-and-pinion steering system of a motor vehicle, comprising a pressure piece that can be loaded in the direction of the first transmission element by at least one spring element and is displaceably guided in a housing, wherein the spring element is produced from at least one dilatant elastomer.

Abstract: A device for securing a unit in a housing, in particular for securing a fixed bearing of a pinion in a steering gear of a motor vehicle, comprises a securing element which is inserted into a bore in the housing. The securing element is provided with at least one latching lever, wherein the at least one latching lever latches into toothing gaps of a toothing geometry in the bore of the housing via a latching lug disposed at the free end of the latching lever, or wherein at least one latching lug is disposed in the bore, which latches into toothing gaps of a toothing geometry in the securing element.

Abstract: Disclosed is a bearing system for a worm engaging with a worm wheel as part of a steering gear, wherein the bearing system comprises at least one bearing with an outer ring, an inner ring, and rolling bodies that are movably accommodated between the outer an inner rings, the bearing being pivotally arranged in a bearing seat for accommodating the outer ring of the bearing, and wherein the inner ring accommodates one of the two shaft ends of the worm in order to seat said shaft end of the worm radially in the housing of the steering gear. For an improved dampening of the worm at least one spring element, which exerts a spring force on a region of the outer ring of the bearing, is provided at the bearing, said spring force supporting a pivotal motion of the worm toward the worm wheel.

Abstract: Disclosed is a bearing system for a worm engaging with a worm wheel as part of a steering gear, wherein the bearing system comprises at least one bearing with an outer ring, an inner ring, and rolling bodies that are movably accommodated between the outer an inner rings, the bearing being pivotally arranged in a bearing seat for accommodating the outer ring of the bearing, and wherein the inner ring accommodates one of the two shaft ends of the worm in order to seat said shaft end of the worm radially in the housing of the steering gear. For an improved dampening of the worm at least one spring element, which exerts a spring force on a region of the outer ring of the bearing, is provided at the bearing, said spring force supporting a pivotal motion of the worm toward the worm wheel.

Abstract: A rack-and-pinion steering system, in particular for a motor vehicle, has a steering housing and a pinion which is inserted into the steering housing If. A rack whose toothing engages with the pinion is mounted so as to be axially displaceable in the steering housing. The rack-and-pinion steering system has a circulation lubrication system with lubricating oil, an arrangement for conveying lubricating oil from a lubricating-oil reservoir conveying lubricating oil to the toothing engagement location between the rack and the pinion.

Abstract: A thrust piece unit for rack-and-pinion steering mechanisms, which is integrated into a housing bore of the steering mechanism housing of motor vehicles, in order to keep the pinion in constant intermeshing with the rack, the thrust piece unit comprising a cylinder part, a piston part and two chambers which are matched with one another and are filled with hydraulic medium and which are connected to one another via a replenishing valve and via a throttle point, and overload protection being additionally integrated in the thrust piece unit.

Abstract: A rack-and-pinion steering system for motor vehicles includes a rack, which is mounted in a housing such that it is longitudinally displaceable and kept in constant engagement with a pinion by a pressure piece, is connected at both ends to in each case one steering tie rod in an articulated manner, sealing bellows being fastened on one side to the housing and on the other side to the longitudinally displaceable steering rods. The steering system has a pressure compensation element integrated in the pressure piece.

Abstract: For a hydraulic servo-assisted steering system for motor vehicles, classifying storage of the respectively measured, actual valve characteristic curves is provided and, corresponding to this, energization characteristic curves for the magnetic actuator of the converter are provided, which may be paired in a classified manner in order to compensate for deviations from a predefined set valve characteristic curve, and a testing method for such a hydraulic servo-assisted steering system is provided, in which the loading pressure of the servo actuator is influenced as a function of an input steering torque and in a speed-dependent manner, the speed-dependent influence being effected via the electro-hydraulic converter, whose energization may be set in a manner superimposed on the speed-dependent definition with regard to the correction of tolerances.

Abstract: A rack-and-pinion steering system for motor vehicles includes a rack, which is mounted in a housing such that it is longitudinally displaceable and kept in constant engagement with a pinion by a pressure piece, is connected at both ends to in each case one steering tie rod in an articulated manner, sealing bellows being fastened on one side to the housing and on the other side to the longitudinally displaceable steering rods. The steering system has a pressure compensation element integrated in the pressure piece.

Abstract: The invention relates to a rotary slide valve (1) of servo-assisted steering systems for motor vehicles that comprises an input and an output element (3, 4), which can rotate in relation to one another around a limited angle of rotation, and comprises a coupling connection (10) of the output element (4) to a control slide (7). A torque-transmitting, non-distorted coupling connection (10) between the control slide (7) and the output element (4) is provided by a coupling pin (10), which is fixed inside the output element (4) and radially extends into a seat of the control slide (7). The seat axially tapers to a cross-section that matches the cross-section of the coupling pin (10), whereby it is easy to insert the coupling pin (10) into the seat and possible to attain a play-free supporting position for the coupling pin (10) by axially displacing the output element (4) or the coupling pin (10) and control slide (7) in relation to one another.

Abstract: A thrust piece unit for rack-and-pinion steering mechanisms, which is integrated into a housing bore of the steering mechanism housing of motor vehicles, in order to keep the pinion in constant intermeshing with the rack, the thrust piece unit comprising a cylinder part, a piston part and two chambers which are matched with one another and are filled with hydraulic medium and which are connected to one another via a replenishing valve and via a throttle point, and overload protection being additionally integrated in the thrust piece unit.

Abstract: For a hydraulic servo-assisted steering system for motor vehicles, classifying storage of the respectively measured, actual valve characteristic curves is provided and, corresponding to this, energization characteristic curves for the magnetic actuator of the converter are provided, which may be paired in a classified manner in order to compensate for deviations from a predefined set valve characteristic curve, and a testing method for such a hydraulic servo-assisted steering system is provided, in which the loading pressure of the servo actuator is influenced as a function of an input steering torque and in a speed-dependent manner, the speed-dependent influence being effected via the electro-hydraulic converter, whose energization may be set in a manner superimposed on the speed-dependent definition with regard to the correction of tolerances.

Abstract: A rack-and-pinion steering system 1, in particular for a motor vehicle, has a steering housing 2 and a pinion 3which is inserted into the steering housing 2. A rack 4 whose toothing 5 engages with the pinion 3 is mounted so as to be axially displaceable in the steering housing 2. The rack-and-pinion steering system 1 has a circulation lubrication system with lubricating oil 8, means 7 for conveying lubricating oil 8 from a lubricating-oil reservoir 6 conveying lubricating oil 8 to the toothing engagement location 9 between the rack 4 and the pinion 3.

Abstract: The invention relates to a rotary slide valve (1) of servo-assisted steering systems for motor vehicles that comprises an input and an output element (3, 4), which can rotate in relation to one another around a limited angle of rotation, and comprises a coupling connection (10) of the output element (4) to a control slide (7). A torque-transmitting, non-distorted coupling connection (10) between the control slide (7) and the output element (4) is provided by a coupling pin (10), which is fixed inside the output element (4) and radially extends into a seat of the control slide (7). The seat axially tapers to a cross-section that matches the cross-section of the coupling pin (10), whereby it is easy to insert the coupling pin (10) into the seat and possible to attain a play-free supporting position for the coupling pin (10) by axially displacing the output element (4) or the coupling pin (10) and control slide (7) in relation to one another.

Abstract: A rotary slide valve for power-assisted steering systems of motor vehicles includes a rotary slide which is connected fixedly in terms of rotation to a valve input member. The control bush is connected fixedly in terms of rotation to a valve output member. The two valve elements are arranged so as to be movable coaxially one in the other and are rotatable relative to one another at most by the amount of the rotary travel of a backlash coupling. The rotary slide has outer and the control bush inner longitudinal control grooves which cooperate with one another in order to control a pressure medium to and from two working spaces of a servomotor. The rotary slide is connected to the valve output member via a torsion-bar spring. Production-related tolerances which may lead to undesirable effects in driving behavior are compensated by a connecting element.

Abstract: A rotary shift or slide valve (1) for power steering systems of motor vehicles contains a rotary slide (4) linked to a valve input element (23). A control bush (7) is guided in an axial bore (6) of the rotary slide (4) and rotatable by a limited angle. The control bush (7) forms a rotation-fixed link with a valve output element (18). Between the rotary slide (4) and the valve output element (18), there is a centering device, which contains two centering elements (32, 33), which can be rotated against each other, and at least one anti-friction element (36) located between the two centering elements (32, 33). One of the centering elements (33) forms a fixed link with the reaction piston (37) and a rotation-fixed but axially displaceable link with the valve output element (18) via a metal bellows (38). The other centering element (32) forms a rotation-fixed and non-displaceable link with the rotary slide (4).