An active suspension system comprises at least one biasing device configured to support a body from a structure, and at least one motor. A magnetorheological (MR) fluid clutch apparatus(es) is coupled to the at least one motor to receive torque from the motor, the MR fluid clutch apparatus controllable to transmit a variable amount of torque. A mechanism is between the at least one MR fluid clutch apparatus and the body to convert the torque received from the at least one MR fluid clutch apparatus into a force on the body. Sensor(s) provide information indicative of a state of the body or structure. A controller receives the information indicative of the state of the body or structure and for outputting a signal to control the at least one MR fluid clutch apparatus in exerting a desired force on the body to control movement of the body according to a desired movement behavior.

A travel limiter for a rotatable steering column of a vehicle comprises: a housing; an elongate threaded member rotatably mounted about its longitudinal axis within the housing; a nut member threadedly mounted on the elongate threaded member, the exterior of the nut member comprising a toothed gear; connector for connection of a rotatable steering column of a vehicle to the elongate threaded member, whereby the steering column and the threaded member are constrained to rotate together; end stops which engage with the nut member to define the maximum axial displacement of the nut member along the elongate threaded member in both directions; a drive motor having an output shaft configured to rotate an output gear member meshed with the gear on the exterior of the nut member; and a controller configured to control the operation of the drive motor.

A travel limiter for a rotatable steering column of a vehicle comprises: a housing; an elongate threaded member rotatably mounted about its longitudinal axis within the housing; a nut member threadedly mounted on the elongate threaded member, the exterior of the nut member comprising a toothed gear; connector for connection of a rotatable steering column of a vehicle to the elongate threaded member, whereby the steering column and the threaded member are constrained to rotate together; end stops which engage with the nut member to define the maximum axial displacement of the nut member along the elongate threaded member in both directions; a drive motor having an output shaft configured to rotate an output gear member meshed with the gear on the exterior of the nut member; and a controller configured to control the operation of the drive motor.

An electric powered recirculating ball assembly includes a shaft having a plurality of sector teeth extending therefrom. The assembly also includes an eccentric sleeve defining a bore containing a portion of the shaft, the eccentric sleeve comprising an upper sleeve segment and a lower sleeve segment that are separate components, the eccentric sleeve defining an opening that the sector teeth extend through.

A nose landing gear system is disclosed. In various embodiments, the nose landing gear system includes an electric motor; a hydraulic pump connected to the electric motor; a gearbox connected to the electric motor; and a clutch configured to mechanically couple the gearbox to a steering collar.

A steer-by-wire steering system may include an actuation control system to actuate road wheels via a rack and pinion steering gear and a steering wheel control system to simulate a steering feel of a mechanically linked steering system to a steering device. The actuation control system may have a second control unit, and the steering wheel control system may have a first control unit and an actuator. An automatic driving electronic control unit may decide if a drive mode is vehicle-controlled or driver-controlled. If driver-controlled, the first control unit may rotate the steering wheel by a turning angle by activating the actuator according to a pre-set function depending on a rotation angle of a pinion to simulate the steering feel. If vehicle-controlled, the first control unit may rotate the steering wheel by a reduced turning angle by activating the actuator according to a fraction of the pre-set function.

A vehicle steering control method in which steering wheel vibrations are suppressed when a clutch is engaged while turning to suppress a sense of discomfort imparted to the driver. In this method, when transitioning from a steer-by-wire mode under an autonomous driving mode in which a steering clutch, through which a steering wheel and left and right front wheels are mechanically disconnected and connected, is disengaged, to an EPS control mode under a manual driving mode in which the steering clutch is engaged and an assist torque that corresponds to a detected torque from a torque sensor is imparted to the left and right front wheels, the steering clutch is engaged, and the assist torque is limited to a value that corresponds to the detected torque from the torque sensor from when the steering clutch is engaged until a prescribed limitation period has passed.

A friction clutch mechanism for a steering column of a vehicle is disclosed.

The present embodiments relate to a steer-by-wire-type steering apparatus. The present embodiments may provide a steer-by-wire-type steering apparatus including: a locking member coupled to a shaft of a reaction motor and having locking teeth formed on an outer circumferential surface thereof; a pair of rotation-preventing members pivotally coupled by hinge axes at one ends thereof and having locking protrusions, which are supported by the locking teeth, formed at the opposite ends thereof; a cam rotatably coupled to a shaft of a driving motor so as to pivot the rotation-preventing members and having one side provided with one of a fixing recess and a fixing member inserted into the fixing recess; and a cam holder having one side, which faces the one side of the cam, provided with the other of the fixing recess and the fixing member.

A nose landing gear system is disclosed. In various embodiments, the nose landing gear system includes an electric motor; a hydraulic pump connected to the electric motor; a gearbox connected to the electric motor; and a clutch configured to mechanically couple the gearbox to a steering collar.