Abstract: A steer-by-wire steering system for a vehicle is provided that includes a steering wheel actuator for moving and detecting movements of a steering wheel of the vehicle. The steering wheel actuator includes a steering wheel electric motor. The steer-by-wire steering system further includes an axle actuator for moving and detecting movements of wheels of an axle of the vehicle. The axle actuator includes an axle electric motor and an axle control unit. The steer-by-wire steering system an equivalent circuit, which measures a current induced by the steering wheel electric motor and provides the axle control unit with at least one measurement value depending on the induced current for controlling the axle electric motor.

Abstract: The disclosure relates to a method for operating a steering system of a vehicle having a front-axle steering assembly, a rear-axle steering assembly and a steering wheel. The method involves detecting a failure of the front-axle steering assembly, steering the vehicle exclusively via the rear-axle steering assembly based on a steering command issued by a driver via the steering wheel, comparing at least one detected physical value of the steering command with a limit value associated with the rear-axle steering assembly and, provided the at least one associated limit value is reached or exceeded by the at least one detected physical value of the steering command, applying a torque acting on the steering wheel via the electric motor coupled to the steering wheel, which torque counteracts the steering command.

Abstract: In a method for producing a haptic feedback force by setting a manual torque at a steering intention input device of a steering system of a motor vehicle, a first and a second rack force value are obtained from two different models. The rack force values originating from the two models are processed to form a quotient, which determines a feedback force value, by the second rack force value being modified by the quotient, and the feedback force value is transferred to a steering reference torque generator of the steering system, which sets the manual torque at the steering intention input device in dependence on the feedback force value.

Abstract: A method is specified for determining a regulated manual torque for a steer-by-wire steering system, which works against a steering torque applied by a driver to a steering wheel. The manual torque is regulated as a reference variable, which results from summed output values of at least two functions, wherein a first function of the at least two functions is dominant over a second function of the at least two functions, and wherein an output value of the first, dominating function acts as a control variable on the second function. Furthermore, a steering system is specified.

Abstract: A method for operating an electromechanically assisted steering system of a motor vehicle is described. The steering system has a steering arrangement and at least one electromechanical actuator. The at least one electromechanical actuator is coupled to the steering arrangement in a torque-transmitting manner. The method comprises the following steps: acquiring a steering rack force signal that comprises information about a steering rack force acting on a steering rack of the steering system; acquiring a driver torque signal that comprises information about a driver torque exerted on the steering arrangement by the driver; ascertaining a filtered scaled steering rack force signal; and ascertaining a steering feedback torque for the at least one electromechanical actuator, based on the scaled steering rack force signal. A control device for an electromechanically assisted steering system of a motor vehicle, an electromechanically assisted steering system, and a computer program are also described.

Abstract: A bearing assembly with a consumer of electrical energy and at least one energy generating device, has a first component and a second component, which are arranged so as to be movable repetitively relative to one another. The energy generating device has at least one electrical conductor arranged in a loop shape and at least one permanent magnet, wherein the electrical conductor is arranged on the first component, and the permanent magnet is arranged on the second component.

Abstract: An all-wheel steering system for a motor vehicle is described which has an active front axle steering system and an active rear axle steering system. The front axle steering system includes a gear ratio unit which is coupled to a steering wheel. The gear ratio unit is configured to define a front axle steering angle as a function of a steering wheel angle and a front axle steering ratio. In addition, the gear ratio unit is coupled to the rear axle steering system in such a way that the front axle steering ratio is adjustable as a function of a rear axle steering angle. Further, a motor vehicle having such an all-wheel steering system is discussed. Also presented is a method of operating an all-wheel steering system for a motor vehicle.

Abstract: A core for casting a valve housing includes at least one first core part which is additively produced, and at least one second core part which is produced without using additive production. The at least one first core part represents at least one pressure chamber or at least one pressure medium channel of the housing which is configured to provide a fluidic connection of a pressure medium source to a pressure medium consumer when the housing is formed using the core. At least one frame-shaped core holder is formed by a first of the at least one second core part when the housing is formed using the core.

Abstract: The disclosure relates to a steering wheel actuator unit for a steer-by-wire steering apparatus for a motor vehicle and having a steering axle, wherein a free end of the steering axle is designed for arranging a steering wheel and the steering axle is rotatably mounted about its longitudinal axle, the steering wheel actuator unit comprising at least one feedback device which acts on the steering axle to realize a predetermined torque and/or a predetermined damping, and a spindle device connected to the steering axle for providing end stops for the rotational movement of the steering axle. In order to be able to reduce and/or avoid incorrect operation in case of failure of the feedback device, the steering wheel actuator unit further comprising an eddy current device which generates a resistance for the rotation of the steering axle about its longitudinal axle.

Abstract: A method is proposed for operating a steering system of a motor vehicle, in particular an electromechanically supported steering system. First, at least one first virtual magnet and one second virtual magnet are provided in the steering system of the motor vehicle. A virtual magnetic force exerted on each other by the multiple virtual magnets is determined. A setpoint force that is to be applied to a lower part of the steering system is estimated and an auxiliary force with which a servo motor of the steering system acts on the lower part of the steering system is determined from the specified virtual magnetic force and the estimated setpoint force.

Abstract: The invention relates to a sliding bearing (9) comprising: an inner ring element (13); an outer ring element (14); at least one sliding bearing element (15), which is arranged between the inner ring element (13) and the outer ring element (14). The sliding bearing element (15) has multiple sliding bearing pads (20), wherein the individual sliding bearing pads (20) each have a bearing surface (26), which is designed in the shape of a spherical cap.

Abstract: A steer-by-wire steering system (10) for a vehicle comprises a steering wheel actuator (12) for moving and detecting movements of a steering wheel (16) of the vehicle, wherein the steering wheel actuator (12) has a steering wheel electric motor (20) and is connected to the steering wheel (16) of the vehicle. Furthermore, the steer-by-wire steering system (10) has an axle actuator (14) for moving and detecting movements of wheels of an axle of the vehicle, wherein the axle actuator (14) comprises an axle electric motor (32) and an axle control unit (30) and is connected to the axle of the vehicle. In addition, the steer-by-wire steering system (10) comprises an equivalent circuit (36), which is designed to measure a current (U, V, W) induced by the steering wheel electric motor (20) and to provide the axle control unit (30) with at least one measurement value depending on the induced current (U, V, W) for controlling the axle electric motor (32).

Abstract: A frame unit for utility vehicles includes outer and inner parts and a transverse region, wherein the transverse region extends substantially transversely to the outer part and/or the inner part, wherein the transverse region is integrally formed with the outer part or the inner part, the outer part and/or the inner part has a fastening region for being secured to a vehicle frame, the outer part has an outer bearing region and the inner part has an inner bearing region, an axle guide can be arranged between the outer and inner bearing regions and can be secured to the bearing regions such that the axle guide can pivot about a bearing axis, and wherein the transverse region secures the outer part and/or the inner part against pivoting about an orthogonal in relation to the bearing axis.

Abstract: A method is proposed for operating a steering system of a motor vehicle, in particular an electromechanically supported steering system. First, at least one first virtual magnet and one second virtual magnet are provided in the steering system of the motor vehicle. A virtual magnetic force exerted on each other by the multiple virtual magnets is determined. A setpoint force that is to be applied to a lower part of the steering system is estimated and an auxiliary force with which a servo motor of the steering system acts on the lower part of the steering system is determined from the specified virtual magnetic force and the estimated setpoint force.

Abstract: An all-wheel steering system for a motor vehicle is described which has an active front axle steering system and an active rear axle steering system. The front axle steering system includes a gear ratio unit which is coupled to a steering wheel. The gear ratio unit is configured to define a front axle steering angle as a function of a steering wheel angle and a front axle steering ratio. In addition, the gear ratio unit is coupled to the rear axle steering system in such a way that the front axle steering ratio is adjustable as a function of a rear axle steering angle. Further, a motor vehicle having such an all-wheel steering system is discussed. Also presented is a method of operating an all-wheel steering system for a motor vehicle.

Abstract: A frame unit for utility vehicles includes outer and inner parts and a transverse region, wherein the transverse region extends substantially transversely to the outer part and/or the inner part, wherein the transverse region is integrally formed with the outer part or the inner part, the outer part and/or the inner part has a fastening region for being secured to a vehicle frame, the outer part has an outer bearing region and the inner part has an inner bearing region, an axle guide can be arranged between the outer and inner bearing regions and can be secured to the bearing regions such that the axle guide can pivot about a bearing axis, and wherein the transverse region secures the outer part and/or the inner part against pivoting about an orthogonal in relation to the bearing axis.

Abstract: A tubular liner for rehabilitating sewers has a reinforcing layer being expandable in the circumferential direction and formed of fiber rovings and impregnated with a curable reactive resin. The tubular liner has an outer tubular film which encloses the reinforcing layer and is formed of a material that can be expanded radially. A longitudinal pull strap is provided and absorbs the tensile forces acting on the tubular liner when the tubular liner is inserted into the sewer. The tubular film has a laminated nonwoven layer on the side facing the reinforcing layer. The longitudinal pull strap is located between the nonwoven layer and the reinforcing layer and is in immediate contact with the outer side of the reinforcing layer and the nonwoven layer. The longitudinal pull strap has a width of less than 50% of a length of the outer circumference of the reinforcing layer.