A vehicle active vibration control (AVC) system includes a vehicle having at least an engine, a transmission, a controller area network (CAN) bus, a frame, and a cabin. The vibration control devices (120) are distributed about the frame, with each device including a circular force generator (CFG) (122). At least one sensor is positioned on the frame to detect and measure a noise and/or vibration within the cabin. Each sensor creates an electronic data signal and electrically communicates with a corresponding vibration control device. Each vibration control device receives an electronic data signal from a corresponding sensor and vehicle data from the CAN bus. Each vibration control device processes the electronic data signal and the vehicle data. The CFG of each vibration control device generates a vibration canceling force having a magnitude and phase that attenuates noise and/or vibration within the cabin.

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.

The disclosure relates to a steering system for a motor vehicle, which is designed as a steer-by-wire steering system and comprises a rack, an electric drive for longitudinal displacement of the rack, a worm gear and a drive shaft which is in toothed engagement with the rack. The electric drive is connected to the drive shaft by the worm gear so as to transmit torque.

A steering column assembly includes a jacket having a first end, a second end, a jacket length, and an inner surface defining a bore. The steering column assembly also includes a steering shaft having an outer surface and a shaft length, at least a portion of the steering shaft located within the bore defined by the inner surface of the jacket. The steering column assembly further includes a stiffening sleeve having a radially inner surface, a radially outer surface, and a sleeve length, wherein the radially outer surface of the stiffening sleeve is fixed to the inner surface of the jacket.

An electromagnetic damping system for a steering system includes a pinion gear having a pinion shaft and engaged with a steering rack. The electromagnetic damping system also includes a friction disk operatively coupled to the pinion shaft. The electromagnetic damping system further includes an electromagnetic clutch located adjacent the friction disk, the electromagnetic clutch disposed in a spaced position relative to the friction disk in a first condition of the electromagnetic clutch, the electromagnetic clutch disposed in a contact position relative to the friction disk in a second condition of the electromagnetic clutch to damp the rate of movement of the steering rack.

A flex coupling assembly for coupling a first shaft to a second shaft of a shaft assembly is provided. The flex coupling assembly decouples axial and torsional stiffness from bending stiffness of the shaft assembly, thereby dampening the transmission of noise and vibration between the first and second shafts. The flex coupling assembly includes an inner housing subassembly and an outer housing subassembly. The inner housing subassembly includes an inner housing and a resilient flex coupling disposed in an outer housing cavity of an outer housing of the outer housing subassembly. A retention member is fixed to an outer housing to retain the inner housing subassembly in the outer housing cavity. The inner and outer housing subassemblies can rotate and translate relative to a common axis, while the inner and the outer housings restrict bending between the inner and outer housing subassemblies, thereby restricting bending between the first and second shafts.

A flex coupling assembly for coupling a first shaft to a second shaft of a shaft assembly is provided. The flex coupling assembly includes a lower housing having a housing wall bounding a cavity between a first end having an end face and an open second end. A first shaft is fixed to the end face and extends along an axis. An upper flange, spaced from the lower housing, has a second shaft fixed thereto extending along the axis. A retention member, disposed in the cavity, is operably fixed to the upper flange. A resilient flex coupling, disposed between the end face and the flange, is operably fixed to the upper flange and the retention member and to the lower housing. The lower housing and the flange are moveable axially toward and away from one another and rotatably about the axis via flexing of the resilient flex coupling which dampens noise and vibrations between the first and second shafts.

The present disclosure relates to a reducer of an electric power steering apparatus. The present embodiments provide a reducer of an electric power steering apparatus, comprising: a first bearing configured to be coupled to one end of the worm shaft on one side where a motor shaft is connected, among both ends of the worm shaft; a second bearing configured to be coupled to the opposite end of the worm shaft; a plug bolt configured to have a seating groove formed on a support surface for axially supporting the first bearing and configured to have an outer circumferential surface coupled to a gear housing; and a damper configured to support an end of the first bearing and configured to be coupled to the seating groove of the plug bolt.

A vehicle steering apparatus is provided that includes a first shaft having an empty space inside, a second shaft, one end of which is inserted into inside of the first hollow shaft, a damper located between an inner circumferential surface of the first shaft and an outer circumferential surface of the second shaft, and a presser coupled to the one end of the second shaft and pressing the damper in an axial direction in which at least one of the first shaft or the second shaft extends. By using the vehicle steering apparatus, it is possible to provide various degrees of the rigidity according to requirements of vehicles by adjusting the rigidity of a damper capable of improving driver's steering feeling through the absorbing of vibration in a coupling mechanism for coupling shafts after having been assembled.

A telescopic steering column assembly comprises a telescopic shroud having an inner shroud portion and an outer shroud portion, and a telescopic steering shaft that passes through the shroud, comprising an inner shaft portion and an outer shaft portion. The telescopic steering shaft is supported by the shroud through a support assembly interposed between the outer shaft portion and the inner shroud portion, which in use, limits or removes free play between the telescopic steering shaft and the shroud that would otherwise occur in at least one direction orthogonal to the telescopic movement.