A pneumatically operable adjusting device (1) is provided for acting on a spring device (5) of a spring damper device (3) having a tubular body (2), with a tubular piece-shaped housing (4) which is designed to surround the tubular body (2) and has a passage (6) passing through a peripheral wall of the housing (4), and the adjusting device (1) has an adjusting nut (9) with an internal thread (10) which is attached to an external thread (11) of a tubular body (2), 37) of the spring damper device (3) can be brought into screw engagement, the housing (4) being designed for releasable abutment against the adjusting nut (9) and having an inner recess (7) for forming a pressure chamber (8) which is in fluid connection with the passage (6) and the inner recess (7) forming a pressure wall (24), the fluid admission of which causes a force acting on the housing (4) in the axial longitudinal direction and the housing (4) has an abutment surface (54) designed for spring force admission by the spring device.

A spring plate arrangement for vibration damper with damper tube, with spring plate for supporting a suspension spring, the spring plate having a contact portion circumferentially contacting a circumference of the damper tube, a receiving portion adjoining the contact portion via a shoulder and radially spaced from damper tube to form an annular space, and a supporting portion adjoining receiving portion for axially supporting the suspension spring, with a retaining ring for securing spring plate at the damper tube in an axial direction AR. The damper tube has a receiving groove arranged inside the annular space and where retaining ring is received. The retaining ring has at least one radially protruding clamping contour at its circumference which cooperates with the receiving portion in an engaging manner to secure the spring plate against rotation.

A shock absorber is provided that includes a shock body and a shaft assembly. The shock body has an inner chamber. The inner chamber is defined by a cylindrical interior surface. At least one groove is formed in the interior surface within at least one select length of the shock body. A piston of the shaft assembly is received within the inner chamber of the shock body. The piston includes valving to allow dampening matter that is received within the inner chamber to pass through the piston to allow the piston to move within the inner chamber. The at least one groove that is formed within the interior surface is configured to allow at least some of the dampening matter to bypass the valving of the piston to allow the piston to move through the at least one select length with less resistance.

The present disclosure relates to a strut assembly for use with a vehicle. The strut assembly has a shock absorber having a shock absorber tube, a lower spring seat, a tubular member and a coil spring. The lower spring seat supports one end of the spring and includes a tubular member having an inner wall surface, and is configured to receive the shock absorber tube therein. The lower spring seat has an annular member extending radially outwardly from the tubular member with a surface for supporting the one end of the coil spring thereon. The tubular member has a portion constructed to deform and collapse in response to a predetermined excessive force experienced by the shock absorber.

A suspension assembly for a vehicle includes a lower alignment arm, an upper alignment arm, and a linear force element. The lower alignment arm includes a first portion, second portion, a third portion, and a linear force element mount. The linear force element mount includes a bearing for pivotably coupling the linear force element to the lower alignment arm.

A suspension device for an in-wheel motor driven wheel is provided. An upper suspension arm is pivotally supported on the vehicle body for supporting the wheel in a vehicle upper position higher than an axle. A link member pivotally connects the wheel to the upper suspension arm and has an absorber connecting portion connected to a lower end of the shock absorber. The shock absorber connecting portion is disposed in the vehicle bottom position lower than an upper end portion of the in-wheel motor unit. The shock absorber is disposed between the vehicle body and the in-wheel motor unit and inclined so as to be closer to the vehicle body toward the lower end.

A device for connecting the elastic elements and dissipaters of variable type of a mechanical suspension interposed between two vibrating or tilting mechanical systems, the source body and the receiving body, respectively, in order to reduce the forces acting on the receiving body, and/or the displacement thereof, and/or the speed thereof, or combinations of the previous physical magnitudes and/or of any other ones, which are produced on the receiving body due to the motion or forces to which the source is subjected. The device consists of elastic elements, such as metal components or compressed gases, energy dissipating elements, either by means of friction between fluid and solid, and between solid and solid, or by means of suitable electromagnetic couplings the damping ability of which can be automatically varied by a suitable control system according to the operating conditions of the suspension; elements forming the kinematic connection structure between the elastic elements, damping elements, source and receiving bodies, such connections being solid or fluid or electromagnetic connections.

An actuator includes a first housing, a second housing fixed to the first housing, and a piston configured to translate relative to each of the first housing and the second housing. The actuator also includes a locking device configured to selectively restrain the piston in a predetermined position relative to each of the first housing and the second housing and release the piston. The actuator additionally includes an actuation mechanism configured to activate the locking device to thereby restrain the piston in the predetermined position. Also disclosed is a suspension system for a vehicle employing such an actuator at a suspension corner, wherein the actuator is used to set a ride height of the vehicle at the suspension corner.

A suspension coil spring, when assembled to a suspension device, in which a spring reaction axis (AR) is positioned coincident with or sufficiently close to a load input axis (AA), and the design and manufacture of coil springs are facilitated. Namely, a suspension coil spring (10) in a free state is formed so that a coil axis (AC) is bent in V-shape at bend point (PB) and the distance from the end turn center (CU) of the upper seating surface (38) to an imaginary coil axis (AI) is an upper inclination amount (V.sub.U), and the distance from the end turn center (CL) to the imaginary coil axis (AI) is a lower inclination amount (V.sub.L). When the suspension coil spring (10) is interposed between spring seats (22, 24) in the suspension device and compressed along a strut axis, the spring reaction AR axis of the suspension coil spring (10) is inclined and offset with respect to the imaginary coil axis (AL) according to the inclination amounts (V.sub.U, V.sub.L).

A suspension controller includes a target current setting unit configured to set a target current value, a current limitation setting unit configured to set a current limitation value, a current detector configured to detect a current value of a first current supplied to a solenoid that is configured to control a damping force of a suspension, a duty ratio setting unit configured to set a duty ratio based on the target current value, based on the current limitation value, and based on the current value detected by the current detector; and a current outputting unit configured to supply the solenoid with a second current that corresponds to the duty ratio set by the duty ratio setting unit and to a power supply voltage. The current limitation setting unit is configured to change the current limitation value based on the duty ratio set by the duty ratio setting unit.