A shock absorber includes a first end fitting connected to a first telescoping member, a second end fitting connected to a second telescoping member, the first and second telescoping members being telescopically mounted relative to each other. An elastomeric spring/damper is disposed between the first telescoping member and the second telescoping member.

A skid-steer delivery autonomous ground vehicle has a drive train and suspension that aids in maneuverability. The AGV has six wheels, each of which is powered by its own motor. The AGV has features that diminish the dragging effect on the wheels, either by choice of wheel features or by taking weight off the front wheels during turning.

A ball screw spline actuator includes a shaft, a ball nut, and a ball spline. The shaft includes a helical groove and a spline groove intersecting the helical groove forming intersections having a least one ridge including a first surface finish formed by a first manufacturing operation. The ridge is subsequently reformed through a second manufacturing operation to include a second surface finish to reduce stress concentrations in the ridge from cyclical loading from at least one of the ball nut or the ball spline. In one example, the second manufacturing operation reforms the ridge to include a surface finished edge.

The invention relates to a lifting machine (1) comprising a lifting arm (3), a rolling chassis (2) equipped with at least one front axle (5) and one rear axle (6), and a sensor for measuring the tilt of the lifting arm (3) in relation to the chassis (2), the rear axle (6) being pivotably mounted around an axis that is parallel to the longitudinal axis of the machine (1). The rear pivoting axle (6) is mounted to freely pivot inside an angular range defined by two abutments supported by said chassis (2), the front axle (5) is coupled to the chassis (2) by a pivoting connection with an axis that is parallel to the longitudinal axis of the machine (1) and is equipped with an activatable/deactivatable suspension (9) in order to allow the relative pivoting between the front axle (5) and the chassis (2) to be damped, said suspension (9) being deactivated at least when the angle value measured by sensor (4) for measuring the tilt of the lifting arm (3) is greater than a predetermined threshold value.

A live valve poppet is disclosed. The system includes an active valve to enable or prevent fluid flow in a first flowpath between a damping chamber and a reservoir. A second fluid pathway between the damping chamber and the external reservoir, wherein the second fluid pathway is larger than the first fluid pathway, and a poppet disposed within the second fluid pathway. The poppet distinctly separate from the active valve. The closing of the active valve causes a buildup of fluid pressure that acts against a portion of the poppet to cause the poppet to close a fluid flow through the second fluid pathway.

In one embodiment, there is disclosed a modular, blast resistant suspension module for an armored vehicle. Each suspension module has a first and second axle assembly. The first axle assembly has a Short-Long Arm (SLA) suspension system pivotally connected to a blast resistant differential housing and the second axle assembly has a Road Arm (RA) suspension system pivotally connected to the differential housing. The suspension modules may be used to form 44 or 88 vehicle configurations.

Embodiments of the invention address the area of predictive suspension control system for a vehicle, particularly a two-wheel vehicle such as a motor cycle or a scooter. The system includes a stereo sensor unit which for generating image data, a computing unit which extracts a relevant image portion from the image data based on future vehicle path data, and calculates road unevenness on a future vehicle path of the vehicle based on the generated image data. A suspension control unit generates an adaptation signal for adapting the suspension based on the calculated road unevenness. The computing unit adapts a search direction of a stereo algorithm or a correlation area of the stereo algorithm based on a lean angle of the vehicle to generate the three-dimensional partial image data from the relevant image portion, and fits a road model to the three-dimensional partial image data to calculate the road unevenness.

In one embodiment, there is disclosed a modular, blast resistant suspension module for an armored vehicle. Each suspension module has a first and second axle assembly. The first axle assembly has a Short-Long Arm (SLA) suspension system pivotally connected to a blast resistant differential housing and the second axle assembly has a Road Arm (RA) suspension system pivotally connected to the differential housing. The suspension modules may be used to form 44 or 88 vehicle configurations.

Aspects of the present disclosure relate to a locking control method for a pivot axle of a wheeled working machine including: determining, using a multibody simulation model, a current posture and motion state of the working machine and static and dynamic forces acting on the working machine; determining a relevant tipping line based on a current locking status of a pivot axle of the working machine; calculating torques acting on the working machine based on the information on current posture, motion state, static and dynamic forces; determining a control command for a pivot axle locking mechanism of the working machine based on the calculated torques and the tipping line; and providing the control command to a pivot axle locking mechanism.

A control system configured to control a damping force of an actuator of an active suspension system of a vehicle in response to an external disturbance of a wheel with which the actuator is associated, includes one or more controllers and configured to: receive a sensed displacement parameter indicative of suspension displacement associated with the wheel; determine whether a condition is satisfied, wherein satisfaction of the condition requires the sensed displacement parameter to indicate a transition from a suspension displacing phase associated with the external disturbance to a suspension restoring phase associated with the external disturbance, and wherein satisfaction of the condition depends on an amount of suspension displacement indicated by the sensed displacement parameter; and output a signal to control the damping force to be greater, during the suspension restoring phase associated with the external disturbance, than if the condition is not satisfied, in dependence on satisfaction of the condition.