A vehicle suspension system may include a semi trailing arm, a coilover damper and a distributed jounce response assembly. The semi trailing arm may be operably coupled to a chassis of a battery electric vehicle (BEV) at a first pivotable connection and a second pivotable connection. The semi trailing arm may also support a rear wheel of the BEV. The coilover damper may be disposed between the chassis and a third pivotable connection on the semi trailing arm. The distributed jounce response assembly may progressively distribute a jounce load to at least two different locations within the system.

A utility vehicle includes a plurality of ground-engaging members, a frame, a powertrain assembly, a front suspension assembly, and a rear suspension assembly. A cargo bed may be supported by the frame at the rear of the vehicle. The vehicle also includes an operator seat and at least one passenger seat positioned within an operator area. In one embodiment, the vehicle includes doors to enclose the operator area.

A utility vehicle includes a plurality of ground-engaging members, a frame, a powertrain assembly, a front suspension assembly, and a rear suspension assembly. A cargo bed may be supported by the frame at the rear of the vehicle. The vehicle also includes an operator seat and at least one passenger seat positioned within an operator area. In one embodiment, the vehicle includes doors to enclose the operator area.

A vehicle including: a frame; front suspension assemblies and wheels; a rear left suspension assembly connected to the frame; a rear right suspension assembly connected to the frame; rear wheels having a wheel axis and an inner rim radius; a rear gear train; and a motor. Each rear suspension assembly including a swing arm; a shock assembly; a knuckle including: a first portion connected to a wheel hub, and a second portion extending upward from the first portion; a first link having an outward end connected to the first portion and an inward end connected to the frame; and a second link having an outward end connected to the second portion and an inward end connected to the frame, the outward end of the second link being distanced from the corresponding wheel axis by a distance greater than the inner rim radius.

A shock absorber including: a first cylinder having an interior, first and second ends and defining an axis, wherein the interior includes a damping fluid chamber and a damping piston movably mounted therein for movement between the first and second ends, wherein the damping piston is mounted on a first end of a shaft, wherein the first end of the shaft is movably retained within the interior of the first cylinder; first and second bypass openings configured for opening into the damping fluid chamber at first and second axially spaced-apart positions; a bypass channel fluidly coupling the first and second bypass openings; a fluid metering valve; and a floating piston dividing a portion of the shock absorber into a gas chamber and the reservoir chamber, wherein the fluid metering valve and the floating piston define the reservoir chamber there between.

A shock absorber including: a first cylinder having an interior, first and second ends and defining an axis, wherein the interior includes a damping fluid chamber and a damping piston movably mounted therein for movement between the first and second ends, wherein the damping piston is mounted on a first end of a shaft, wherein the first end of the shaft is movably retained within the interior of the first cylinder; first and second bypass openings configured for opening into the damping fluid chamber at first and second axially spaced-apart positions; a bypass channel fluidly coupling the first and second bypass openings; a fluid metering valve; and a floating piston dividing a portion of the shock absorber into a gas chamber and the reservoir chamber, wherein the fluid metering valve and the floating piston define the reservoir chamber there between.

A suspension device includes a damper. The damper includes: an outer cylinder; a ball screw housed in the outer cylinder; a fastening member that supports the ball screw inserted therethrough and is attached to an end part of the outer cylinder; and a fixing member that is attached to an end part of the ball screw and fixes the ball screw to the fastening member. An insertion portion, where the ball screw is inserted into the fastening member, is provided with a fitting portion where the ball screw fits the fastening member, and the fitting portion has a spline fitting structure.

A shock absorber including: a first cylinder having an interior, first and second ends and defining an axis, wherein the interior includes a damping fluid chamber and a damping piston movably mounted therein for movement between the first and second ends, wherein the damping piston is mounted on a first end of a shaft, wherein the first end of the shaft is movably retained within the interior of the first cylinder; first and second bypass openings configured for opening into the damping fluid chamber at first and second axially spaced-apart positions; a bypass channel fluidly coupling the first and second bypass openings; a fluid metering valve; and a floating piston dividing a portion of the shock absorber into a gas chamber and the reservoir chamber, wherein the fluid metering valve and the floating piston define the reservoir chamber there between.

A shock absorber for a vehicle having a damper and a first and second springs mounted coaxially around the damper and a preload adjuster for partially compressing at least one of the springs independently of the compression stroke. In one embodiment the preload adjuster is remotely controllable. In another embodiment the shock absorber includes an additional mechanism for preloading at least one of the springs.

A suspension system includes a primary actuator, an inertial actuator, and a controller. The primary actuator applies force between a sprung mass and an unsprung mass of a vehicle to control movement therebetween. The inertial actuator applies force between the unsprung mass and a reaction mass to damp movement of the unsprung mass. The inertial actuator has a threshold capacity. The controller controls the primary actuator and the inertial actuator. The controller determines a required damping of the movement of the unsprung mass, and apportions the required damping between the primary actuator and the inertial actuator.