A RevoKnuckle-type suspension for a wheeled vehicle has a hub mounted to a bearing carrier for rotation relative thereto about a steering axis, and a shock absorber connected non-rotatably to the bearing carrier. The shock absorber has an outer cylinder having an axially-extending guide hole defined therein, and a piston and attached piston rod retained for axial reciprocation in the guide hole. The guide hole and at least one of the piston and the piston rod retained therein have respective complementary-shaped, non-circular cross-sectional shapes which engage one another to resist axial rotation of the piston and/or the piston rod within the guide hole. The carrier is therefore restrained against rotation relative to the vehicle sprung structure without the need for any additional component(s) such as a control arm or stabilizer, as required in a traditional RevoKnuckle-type suspension.

A suspension system for a work vehicle includes an axle bar, an inner control member, an outer control member, and a slide housing. The axle bar extends through the inner control member, the outer control member, and the slide housing. The axle bar is non-rotatably coupled to the slide housing and is configured to pivot with the slide housing and relative to the inner control member and the outer control member.

An electrically powered suspension system includes: an electromagnetic actuator; an information acquisition unit configured to acquire time-series information related to stroke position of the electromagnetic actuator, information on stroke velocity, and an amount of change in stroke of the electromagnetic actuator and information on a stroke direction based on the time-series information; a damping force calculation unit configured to calculate target damping force based on the information on the stroke velocity; and a drive control unit configured to control driving of the electromagnetic actuator using target driving force obtained based on the target damping force. The damping force calculation unit calculates equivalent friction compensation force based on the amount of change in the stroke and the information on the stroke direction, and corrects the target damping force based on the calculated equivalent friction compensation force. The equivalent friction compensation force has elastic force component and dynamic friction force component.

The disclosure relates to a wheel suspension of a device having an electrical drive of a wheel for supporting a manual movement impulse. The wheel suspension includes a connector piece movably or bendably arranged between a support element or support frame connected to the device and between an interior stator of an electrical drive, wherein the connector piece is held in a starting position due to the gravity of the device, without other influencing forces. The wheel suspension also includes at least one sensor that detects a deflection of the connector piece, and a control device designed such that the control device together with the electrical drive counteracts a deflection or bending of the connector piece.

A machine includes a chassis, a plurality of ground engaging elements supporting the chassis above a ground surface, a motor for driving at least one of the ground engaging elements and a plurality of assemblies supporting the chassis on the ground engaging elements. Each of the assemblies is configured to selectively raise and lower the chassis relative to the ground surface and includes a first attachment component for attaching the assembly to one of the ground engaging elements, a second attachment component for attaching the assembly to the chassis, an adjustment component for shifting the first attachment component between a plurality of operating positions relative to the second attachment component. A control system allows an operator to remotely control the adjustment components of each of the assemblies.

A sport-wheeled chassis is provided for connecting to a mobility device, which comprises a suspension set up under the bottom of the mobility device, a steering pivotally connected to the suspension, a controller connected to the suspension and steering electrically, tires which are pivotally connected to the steering and disposed under the steering, and a steering shaft of the steering which coincides axially with the steering shaft of the tire so that the controller can operate the turning direction of the tire and the height of the suspension through the suspension and the steering. The chassis not only with a simple structure, but also with a suspension to control the height of the chassis off the ground, so that the chassis can maintain stability in any rugged environment, and, with its attached tires, the chassis can move to desired places fast and accurately.

A towable off-road vehicle is provided with four-wheel independent suspension and an articulating tow bar, wherein an occupant is afforded rollover protection that allows them to be safely towed off road, yet empowering the occupant to follow the towed off-road vehicle with an independent suspension and steering system facilitated by an articulating tow bar for driving in the towing vehicle's tracks, thereby allowing more people to experience the excitement of off-roading first-hand.

A vehicle is provided including a frame assembly. The frame assembly includes a front frame module, a middle frame module, and a rear frame module. The front frame module is fastened to a front portion of the middle frame module. The rear frame module is fastened to a rear portion of the middle frame module. The middle frame module is interchangeable with at least one other middle frame module to change a length of the vehicle.

A method dynamically stabilizes a vehicle having a suspension system including pneumatic air springs, with one air spring being associated with each wheel, each air spring being independently adjustable in height; an air spring valve associated with each air spring; and a reservoir containing a source of air. The method obtains data relating to at least lateral acceleration, yaw rate, roll rate, velocity and the steering wheel angle deviation of the vehicle. Thresholds are established, and the data is compared to the thresholds. If thresholds are exceeded, at least one air spring valve is automatically opened to increase air pressure in the associated air spring by receiving air from the reservoir, or to decrease air pressure in the associated air spring by returning air to the reservoir, so as to adjust a height of the associated air spring to help transfer the weight of the vehicle.

A suspension system for a work vehicle includes an axle bar, an inner control member, an outer control member, and a slide housing. The axle bar extends through the inner control member, the outer control member, and the slide housing. The axle bar is non-rotatably coupled to the slide housing and is configured to pivot with the slide housing and relative to the inner control member and the outer control member.