Abstract: A power steering assembly for an electro-mechanical power steering system of motor vehicles, in particular utility vehicles, includes a steering gear. The steering gear is designed to transmit a rotational movement introduced by a steering element, in particular by a steering wheel, via an input side of the steering gear, in particular via an input shaft of the steering gear, to an output side of the steering gear. The power steering assembly is designed to convert a movement derived from the output side of the steering gear into a rotational movement of at least one wheel of the motor vehicle about a steering axis. The power steering assembly is characterized in that the power steering assembly has an absorption unit for at least partial absorption of roadside shocks from the wheel of the motor vehicle.

Abstract: A shaft arrangement for a steering gear has an input shaft, an output shaft and a torsion rod. The torsion rod is connected in a rotationally secure manner to the input shaft in an input-side connection region of the shaft arrangement. The torsion rod is connected in a rotationally secure manner to the output shaft in an output-side connection region of the shaft arrangement. The input-side connection region is spaced apart from the output-side connection region. The shaft arrangement has a rotation prevention member, wherein the rotation prevention member limits a rotation of the input shaft relative to the output shaft to a maximum rotation angle and, when the maximum rotation angle is reached, can transmit a torque from the input shaft to the output shaft.

Abstract: A planetary gear transmission has a sun gear, a ring gear, at least one first planet gear, and at least one second planet gear. The first planet gear and the second planet gear are arranged on a planet carrier, and the sun gear, the ring gear, the first planet gear, and the second planet gear mesh with one another. The planetary gear transmission is characterized in that the planet carrier has a first planet carrier part and a second planet carrier part. The first planet carrier part and the second planet carrier part are designed such that the planet carrier parts are rotated relative to each other starting from a base position and can be fixed in their respective rotated position relative to each other, wherein the at least one first planet gear is connected to the first planet carrier part, and the at least one second planet gear is connected to the second planet carrier part.

Abstract: A planetary gear transmission has a sun gear, a ring gear, at least one first planet gear, and at least one second planet gear. The first planet gear and the second planet gear are arranged on a planet carrier, and the sun gear, the ring gear, the first planet gear, and the second planet gear mesh with one another. The planetary gear transmission is characterized in that the planet carrier has a first planet carrier part and a second planet carrier part. The first planet carrier part and the second planet carrier part are designed such that the planet carrier parts are rotated relative to each other starting from a base position and can be fixed in their respective rotated position relative to each other, wherein the at least one first planet gear is connected to the first planet carrier part, and the at least one second planet gear is connected to the second planet carrier part.

Abstract: The invention relates to a method for compensating a stick-slip effect in the case of a recirculating ball steering system (20) having a steering housing (22), in which a steering piston (24) is supported between a first working chamber (34) and a second working chamber (36), wherein the steering piston (24) has a toothed region (26) on the steering-piston outer wall of the steering position, with which toothed region teeth (28) of a segment shaft (30) mesh, the steering piston (24) can be moved along a longitudinal axis X-X, the working chambers (34, 36) are connected to a control valve (39) by means of pressure-medium lines in order to provide steering assistance, the control valve (39) is connected to a processor unit (40), by means of which valves of the control valve (39) can be actuated, and the processor unit (40) is connected to a sensor (42), which determines rotation of the steering column both in a first direction of rotation and in a second, opposite direction of rotation.

Abstract: The invention relates to a power steering assembly for a hydraulic power steering system of motor vehicles, comprising at least one hydraulic servo valve with a control member (3) for controlling the steering assistance in accordance with a relative rotation of an input shaft with respect to an output shaft (2), and at least one actuator (9) for the relative adjustment of the control member (3) with respect to the input shaft or output shaft (2) in order to influence the steering assistance characteristic. Further, the power steering assembly comprises a summation gearing having a first rotatable drive member (4) that is in operative engagement with the control member (3), and a second rotatable drive member (5) that is in operative engagement with an output element (8) of the actuator (9), and an output member (6).

Abstract: The invention relates to a method for compensating a stick-slip effect in the case of a recirculating ball steering system (20) having a steering housing (22), in which a steering piston (24) is supported between a first working chamber (34) and a second working chamber (36), wherein the steering piston (24) has a toothed region (26) on the steering-piston outer wall of the steering position, with which toothed region teeth (28) of a segment shaft (30) mesh, the steering piston (24) can he moved along a longitudinal axis X-X, the working chambers (34, 36) are connected to a control valve (39) by means of pressure-medium lines in order to provide steering assistance, the control valve (39) is connected to a processor unit (40), by means of which valves of the control valve (39) can be actuated, and the processor unit (40) is connected to a sensor (42), which determines rotation of the steering column both in a first direction of rotation and in a second, opposite direction of rotation.

Abstract: An operating method for a hydraulic servo steering system of a motor vehicle includes a steering cylinder that applies the supporting force to a steering gearing is integrated into a hydraulic circuit by means of a steering valve. The steering valve opening specifies the supporting force, wherein the supporting force is set by the steering valve in accordance with a steering torque applied to a steering wheel, by means of a gearing having play. The steering system further includes an actuator that acts on the gearing in order to cause relative adjustment of the gearing. The opening method provides for a compensation step in which, provided that a steering direction reversal is detected, the gearing is relatively adjusted by means of the actuator in a direction opposite the prior engagement direction of the gearing for a predefined duration or a predefined adjustment distance.

Abstract: A power steering assembly for a hydraulic power steering system of motor vehicles includes an input shaft configured for connection to a steering wheel, an output shaft coupled to the input shaft configured for operational engagement with a steering rod, a hydraulic servo valve, an actuator, a sensor system, and an evaluation unit. The coupling between the input and output shafts is realized by a torsion bar and permits a first relative rotation between the input and output shafts. The hydraulic servo valve, which controls a hydraulic pressure and thus a steering assistance depending on the steering torque applied by a driver, has a rotatable control element engaged with, and driven by, the output shaft. An engagement between the output shaft and control element provides for a second relative rotation therebetween. This engagement includes a multi-stage planetary gear unit. The steering power assistance system is controlled depending on a third relative roation between the input shaft and control element.

Abstract: An operating method for a hydraulic servo steering system of a motor vehicle includes a steering cylinder that applies the supporting force to a steering gearing is integrated into a hydraulic circuit by means of a steering valve. The steering valve opening specifies the supporting force, wherein the supporting force is set by the steering valve in accordance with a steering torque applied to a steering wheel, by means of a gearing having play. The steering system further includes an actuator that acts on the gearing in order to cause relative adjustment of the gearing. The opening method provides for a compensation step in which, provided that a steering direction reversal is detected, the gearing is relatively adjusted by means of the actuator in a direction opposite the prior engagement direction of the gearing for a predefined duration or a predefined adjustment distance.

Abstract: A power steering assembly having an input shaft for connection to a steering wheel, an output shaft coupled to the input shaft for operational engagement with a steering rod, a servo controller, an actuator, a sensor system, and an evaluation unit for evaluating measurement values provided by the sensor system. The coupling between input and output shafts permits a relative rotation therebetween. The servo controller has a rotatable final control element with and driven by the output shaft. The steering force assistance is controlled depending on relative rotation between the input shaft and control element. The engagement between the output shaft and control element provides a relative displacement therebetween. The actuator relatively displaces the control element in relation to the output shaft. The sensor system measures at least one differential angle between the control element and output shaft or between the control element and input shaft.

Abstract: A power steering assembly (20) for a hydraulic power steering system of motor vehicles having at least one hydraulic servo valve with a control element (26) for controlling the steering support dependent upon the relative rotation of the input shaft (22) relative to the output shaft (28), at least two planetary gear trains (30, 40) for transmitting the rotary movement of the input shaft (22) or the output shaft (28) onto the control element (26), and at least one actuator (50) for the relative adjustment of the control element (26) relative to the input shaft (22) or the output shaft (28) in order to influence the steering support characteristic.

Abstract: A power steering assembly (20) for a hydraulic power steering system of motor vehicles having at least one hydraulic servo valve with a control element (26) for controlling the steering support dependent upon the relative rotation of the input shaft (22) relative to the output shaft (28), at least two planetary gear trains (30, 40) for transmitting the rotary movement of the input shaft (22) or the output shaft (28) onto the control element (26), and at least one actuator (50) for the relative adjustment of the control element (26) relative to the input shaft (22) or the output shaft (28) in order to influence the steering support characteristic.