Vehicle suspension systems are described herein. An example wheel steering apparatus includes a steering actuator to couple to a rear axle, a tie rod, and a transfer link to couple the steering actuator and the tie rod. The steering actuator is positioned on a first side of a first longitudinal axis of the rear axle and the tie rod positioned on a second side of the first longitudinal axis of the rear axle opposite the first side.

A suspension operation system includes: a suspension that includes a plurality of links supporting a wheel, at least one or more of the links having an actuator increasing or decreasing its length in an axial direction; a control device that supplies a drive signal to the actuator to control operation of the suspension; and a suspension operation terminal that operates the suspension. The suspension operation terminal includes: a detector that detects operation input information to the suspension operation terminal; and a communicator that transmits information about a target posture of the wheel, the information being based on the operation input information, to the control device as an operation command. The control device includes: a first calculator that calculates the length of the actuator on the basis of the operation command; and a drive circuit that produces the drive signal on the basis of information from the first calculator.

A turning mechanism is equipped with a wire (first movable member) which moves in a movable direction (direction of the arrow B) under the motive power of a turning actuator, a wire (second movable member) which moves in a movable direction under the motive power of a turning actuator, and a coupler connecting the two wires. The coupler is configured in a manner so that the wires are capable of being moved independently in the case that a difference (differential angle) between the toe angles of the rear wheels lies within an allowable range, whereas in the case that the differential angle has exceeded the allowable range, is configured in a manner so that the wires are capable of being operated in a mutually interlocked manner.

Electric power assisted steering (EPAS) systems for solid axle front suspension vehicles are described. An example EPAS system includes an idler arm having a first end and a second end. The first end of the idler arm is coupled to a frame of the vehicle. The example EPAS system further includes an EPAS rack assembly having an input shaft, a rack, an electric motor, and an output link. The rack is coupled to the input shaft and is movable in response to movement of the input shaft. The electric motor is coupled to the rack. The electric motor provides powered assistance to movement of the rack. The output link has a first end and a second end. The first end of the output link is coupled to the rack. The second end of the output link is coupled to the second end of the idler arm.

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.

Actuator having a spindle drive (1) for a rear wheel steering system, including a spindle (2) with a spindle thread (2a) and a spindle nut (3) with a nut thread (3a). The spindle thread (2a) and the nut thread (3a) are designed as displacement threads and the spindle nut (3) threadedly engages with the axially displaceable spindle (2) by way of the displacement thread. The spindle thread (2a) and the nut thread (3a) are braced against one another, in the longitudinal direction of the spindle (2), by a bracing element (4). The bracing element (4) is in the form of a threaded ring having an internal thread (4a) which engages with the spindle thread (2a). The threaded ring (4) is supported relative to the spindle nut (3) by at least one spring element (5, 6), and the at least one spring element (5, 6) is made of an elastomer.

A tilting vehicle having a steering system actively steering a front axle and a rear axle having two wheels that can be deflected individually in a vertical manner with respect to a vehicle body and that are independent of the steering system. The wheels of the rear axle can be steered by passive steering device configured to generate a steering force because of a vertical deflection of the wheels as the vehicle body tilts to one side. The steering force causing wheels to steer towards the opposite side.

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.

An adjustment device (1) for a chassis of a motor vehicle. The adjustment device has an actuator (2) with a housing (5) and a spindle drive, which has an axially displaceable spindle (10), with a fixed mounting (7) on the vehicle side and a connecting element (4) on the chassis side. The spindle (10) is extended in a direction of its longitudinal axis by an extension piece (11), and the connecting element (4) is attached to the outer end (11b) of the extension piece (11).

An independent drive module includes: an in-wheel motor configured to provide driving force to a wheel of a vehicle; a support arm including a first end connected to a vehicle body and a second end connected to the in-wheel motor, to support the in-wheel motor; a shock absorber module including a first end connected to the in-wheel motor and a second end connected to the vehicle body, the shock absorber being configured to absorb shock between the in-wheel motor and the vehicle body and swivel the in-wheel motor during turning of the vehicle so as to perform both shock absorption and steering; and a steering motor connected to the second end of the shock absorber module to transmit rotational force for the steering to the shock absorber module.