Abstract: An electromechanical steering system includes a steering shaft by which a steering command can be specified by a steering handling device, and a steering gear, which is designed to convert a steering command into a steering movement of steerable wheels of a motor vehicle, taking into account at least one input variable. A magnetic torque sensor device measures a torque applied to the steering shaft. The torque sensor device comprises a sensor for detecting an uncompensated measurement signal (T). The torque sensor device comprises a computing unit, which is designed to provide a first parameter and a second parameter for compensation of the uncompensated measurement signal (T) and to calculate a compensated measurement signal (T*) based on the uncompensated measurement signal (T) and the two parameters and to provide this compensated measurement signal (T) as the at least one input variable.

Abstract: A steering column for a motor vehicle comprises an axially extending steering shaft which is mounted in a steering column housing so as to be rotatable about a longitudinal axis, and a revolution limiter for delimiting the rotation of the steering shaft relative to the steering column housing, wherein the revolution limiter has a driver which is connected to the steering shaft, a housing which is connected to the steering column housing and an activation member which is operatively disposed between the driver and the housing and is twistable relative to the steering shaft and relative to the housing, and an activation projection that is able to impact a driver projection of the driver in the circumferential direction, and a detent projection which is able to impact a housing projection of the housing in the circumferential direction.

Abstract: A steer-by-wire steering system for a motor vehicle comprises a steering wheel having a steering shaft, a feedback actuator, and a measuring device for measuring a steering wheel angle, wherein the feedback actuator has a motor having a motor shaft, which is torque-transmittingly connected to the steering shaft, and a printed circuit board, which is fastened to the motor and has a rotor position sensor for measuring a rotor position of the motor, wherein the measuring device has a first steering wheel angle sensor, which is designed to measure a first rotation angle ? of the steering shaft at a shaft end of the steering shaft, wherein the first steering wheel angle sensor is arranged on the printed circuit board, so that it is situated opposite the shaft end.

Abstract: A method to control a steer-by-wire steering system of a road vehicle including a steering wheel coupled to a steering shaft, a road wheel actuator to turn steerable road wheels, a shaft sensor to detect a rotation of the steering shaft and a controller configured or programmed to generate an operation signal for the road wheel actuator from a signal detected by the shaft sensor, includes determining a real steering wheel angle by the shaft sensor, modifying the real steering wheel angle by applying an artificial hysteresis to create an offset between the real steering wheel angle and a modified steering wheel angle to mimic a behavior of an electromechanical power steering mechanism, and generating the motor torque request for the road wheel actuator based on the modified steering wheel angle.

Abstract: A steer-by-wire steering system for a motor vehicle may include a rotatably supported steering spindle, a feedback actuator with a feedback motor for acting on the steering spindle, a steering actuator with a steering motor for acting on steered wheels of the motor vehicle based on rotation of the steering spindle, and two control units for controlling the feedback motor and the steering motor. A first control unit of the two control units and a second control unit of the two control units have different levels of complexity relative to each other, in particular such that the first control unit is more powerful than the second control unit. Also, a method can be utilized to operate such a steer-by-wire steering system, whereby the first control unit and the second control unit execute procedures of different complexity relative to each other.

Abstract: An electromechanical steering system comprises a steering shaft, via which a steering command can be specified by a steering handle, and a steering actuator having an electric motor and having a circuit arrangement assigned to the electric motor, wherein the steering actuator is designed to use the electric motor to convert a specified steering command into a steering movement of steerable wheels of the motor vehicle, wherein the circuit arrangement comprises a connection unit for connecting to a voltage source of a motor vehicle as the main energy source, a voltage supply unit for providing voltages required for operation, a main control unit, a safety unit designed to disconnect the electric motor from the voltage supply unit, an energy storage unit and an auxiliary control unit, wherein the auxiliary control unit is designed to actuate the safety unit for disconnecting the electric motor from the voltage supply unit in the event of a malfunction of the main control unit by energy provided by the energy sto

Abstract: A method for measuring a rack force acting on a rack of a steering mechanism of a steering system for a motor vehicle, in which the rack is movable in a longitudinal direction in the steering mechanism and is coupled to at least one steerable wheel via at least one track rod, comprises measuring the rack force as a reaction force between the steering mechanism and a body part supporting the steering mechanism in the longitudinal direction, thus permitting a simple and robust determination of the rack force.

Abstract: The invention relates to an adjustment drive (5, 6) for a motor-adjustable steering column (1) for a motor vehicle, comprising a gearbox (8, 9) having a drive module (82, 92) in which a drive wheel (922) which is able to be driven in a rotating manner about a drive axis (A) and which operatively engages with a gearbox wheel (912) that is mounted in a gearbox module (81, 91) so as to be rotatable about a gearbox axis (G) and is connected to a threaded spindle (52) or a spindle nut (61) of a spindle drive is mounted, wherein the drive module (82, 92) and the gearbox module (81, 91) are connected to one another by way of at least one joining connection (93).

Abstract: A method for controlling wheel slip of a motor vehicle having at least two wheels, an electromechanical braking system, an electric drive system, and a steer-by-wire steering system comprises: converting a target trajectory of the motor vehicle into a target movement of the motor vehicle; determining wheel-specific target longitudinal and target transverse slip values for the wheels based on the target movement using a vehicle and tyre model; and adjusting actual longitudinal and actual transverse slip values of the wheels to the respective target longitudinal and target transverse slip values by the electromechanical brake system and the electric drive system as a function of a steering angle of the steer-by-wire steering system. A motor vehicle may include a control unit designed to carry out such a method.

Abstract: A steering column for a motor vehicle comprises an actuating unit. A steering spindle is mounted rotatably about a longitudinal axis extending in the longitudinal direction. A supporting unit is connectable to a motor vehicle body and in which the actuating unit is held so as to be displaceable in the longitudinal direction. An energy absorption device, which is incorporated between the supporting unit and the actuating unit, has an elongate energy absorption element fastened to the actuating unit or to the supporting unit via a fastening. A deformation member, which interacts with the energy absorption element, is attached to the supporting unit or to the actuating unit. In the event of a crash with a relative displacement of actuating unit and supporting unit, the deformation member brings about an energy-absorbing plastic deformation of the energy absorption element.

Abstract: The disclosure relates to a method for operating an adjustment drive of a motor-adjustable steering column for a motor vehicle, said steering column comprising an actuating unit with a rotatably mounted steering spindle, to which a steering wheel is attached, wherein the actuating unit is adjustable by at least one adjustment drive for setting a longitudinal position and/or height position of the steering wheel, wherein in the method: a) a setpoint value of an adjustment speed of the actuating unit is predefined; b) on the basis of the setpoint value, the at least one adjustment drive is driven with a voltage signal by way of at least one controller; c) an actual value of the adjustment speed of the actuating unit is detected after a predetermined time period and is compared with the setpoint value; and d) the setpoint value is reduced depending on the result of the comparison between setpoint value and actual value until the voltage signal for driving the adjustment drive lies below the maximum value of a su

Abstract: A motor vehicle power steering system may include a steering handle having at least one handle sensor for detecting a handle position of the steering handle, an electronically controlled steering actuator having an electric motor for providing an actuating torque based on the detected handle position, a mechanical power transmission for transmitting the actuating torque to steered wheels, a position sensor for detecting a wheel position of the steered wheels, and a monitoring device that is configured to relate the wheel position detected by the position sensor to at least one input parameter of the mechanical power transmission given by the electric motor to monitor the functioning of the mechanical power transmission.

Abstract: A steering column for a steer-by-wire steering system may include a casing unit in which a steering spindle is received such that the steering spindle is rotatable about a longitudinal axis. The casing unit may have an inner casing tube, which is rotatable and longitudinally displaceable, received coaxially in an outer casing tube. The steering spindle may have a longitudinally displaceable inner shaft that is received coaxially in an outer shaft in a torque-transmitting manner. The steering spindle may be coupled to a drive unit of a feedback actuator that has an electric motor for the generation and introduction of a feedback torque into the steering spindle. The drive unit has a recess that is arranged coaxially with respect to the longitudinal axis, is open toward the outer shaft, and has a maximum inscribed internal diameter that is greater than an external diameter of the outer shaft.

Abstract: A steer-by-wire steering system for a motor vehicle comprises a steering wheel angle detection apparatus, a feedback actuator and a wheel actuator. The wheel actuator has a wheel actuator control device which is communicatively connected to a feedback actuator control device and is designed to calculate an absolute steering angle on the basis of sensor values from at least two first rotational angle sensors on a second gearwheel of the steering wheel angle detection apparatus and sensor values from at least two second rotational angle sensors on a motor shaft of the feedback actuator. A motor vehicle can include such a system and a method for determining an absolute steering angle can use such a system.

Abstract: A method to control a steer-by-wire steering system for a road vehicle including a steering device, a road wheel actuator to actuate road wheels, and a controller configured or programmed to generate a motor torque request for the road wheel actuator based on an actual or an estimated position and a position request, which is based on the position of the steering device, includes detecting a road wheel actuator power limit situation, modifying the position request so that it can be followed by the road wheel actuator within power limits, and using the modified position request to generate the motor torque request for the road wheel actuator.

Abstract: A method can be used to control a steer-by-wire steering system in an emergency steering mode. The method comprises checking a steering system for the presence of a fault state and upon detection of a fault implementing the emergency steering mode, which involves determining a setpoint position of a steering tie rod using a setpoint wheel steering angle, determining a front wheel to be braked and a brake pressure to attain the setpoint position with a control unit, transmitting the front wheel to be braked and the brake pressure to a brake system, braking the front wheel to be braked, and increasing a torque provided by a wheel drive to compensate for a loss of speed of the motor vehicle caused by the braking of the front wheel to be braked.

Abstract: A steering column for a motor vehicle may include a casing unit in which a steering spindle is mounted rotatably about a longitudinal axis that extends in a longitudinal direction. The casing unit has at least two casing tubes that have a polygonal cross section and are guided such that they can be adjusted relative to one another in the longitudinal direction. Rolling bodies that have a rolling body radius are arranged between the casing tubes such that the rolling bodies can roll in the longitudinal direction in at least three raceways that are distributed circumferentially. To increase rigidity and improve compactness, center points of the rolling bodies are at a radial spacing that is less than or equal to the rolling body radius from an envelope circle that circumscribes the casing tube, on which the rolling bodies can roll on the outside.

Abstract: A steering column may include a steering shaft that is mounted so as to be rotatable about its longitudinal axis relative to a steering column housing and a revolution limiter to limit rotation of the steering shaft. The revolution limiter has a winding core that is connected fixedly to the steering shaft for conjoint rotation therewith. A strap element may be attached to both the winding core and the steering column housing. The strap element may be elongate, may be deformable flexibly transversely with respect to its longitudinal extent, and may have a strap section that can be wound on the winding core in a winding direction around the longitudinal axis. To decrease complexity and to facilitate compactness, the winding direction of the strap section is reversible.

Abstract: A steering device for a motor vehicle, in particular a “steer-by-wire” steering device, comprises a steering wheel, which is able to act on a steering sensor for measuring the rotation angle position of the steering wheel, an electromechanical actuator, which is able to act on a rack for steering wheels, and an electronic controller, which is adapted to detect the steering wheel angle position and to control the electromechanical actuator, wherein the steering device further comprises a feedback actuator acting on the steering wheel, wherein the controller is adapted to measure natural oscillations of the motor vehicle and to apply them with a corresponding amplitude to the feedback actuator.

Abstract: The present invention relates to a bearing cup set for a steering column comprising a bearing cup and a securing element, wherein the bearing cup has a bearing cup portion for the at least partial receiving of a rolling bearing and a holding portion extending radially outwards starting from the bearing cup portion. The bearing cup portion has a first opening side with a collar extending radially inwards and a second opening side. The securing element is connected to the bearing cup in such a manner that the securing element fixes a rolling bearing received by the bearing cup portion in the axial direction in respect of the bearing cup. A steering column comprises a jacket tube in which a steering shaft is received by the rolling bearing so as to be rotatable. The rolling bearing is arranged in the bearing cup portion of the bearing cup.