A suspended axle for a tractor, the axle having a lower link mechanism selectively operable between a first configuration in which the lower links are in fixed relation to the suspended axle and a second configuration in which the lower links are isolated from the suspended axle.

An embodiment of the present invention discloses a device (100) for connecting a wheel to a vehicle (620) comprising: an input shaft (620) able to be kinematically connected to an engine of a vehicle and having a rotation axis (C); an oscillating support (120) able to be hinged to a vehicle frame (T) along a predetermined horizontal hinge axis (B) parallel to and distanced from the rotation axis (C) of the input shaft (620); an auxiliary shaft (125) rotatably associated to the oscillating support (120) according to a rotation axis (A) parallel to and distanced from the hinge axis (B); a wheel-bearing hub (110) rotatably associated to the oscillating support (120) according to a rotation axis (A) parallel to and distanced from the hinge axis (B); first transmission means (625) able to transmit the motion from the input shaft (620) to the auxiliary shaft (125); second transmission means (130) able to transmit the motion of the auxiliary shaft (125) to the wheel-bearing hub (110).

An off-road vehicle includes a chassis, an axle carriage, a rigid axle and a pair of suspension cylinders. The axle carriage is attached to or forms a part of the chassis, and includes a generally vertically arranged slot. The rigid axle is mounted to the axle carriage with a wheel hub at each end thereof, and is vertically movable relative to the axle carriage. The suspension cylinders are connected between the axle carriage and axle, and are operable to move the axle in vertical directions relative to the axle carriage. The off-road vehicle is characterized in that the axle includes a first pair of roll angle stops which engage the axle carriage when the axle is at or near a fully lowered position relative to the axle carriage, and a second pair of roll angle stops which engage the axle carriage when the axle is at or near a fully raised position relative to the axle carriage.

A method for providing improved ride control for a work vehicle when transporting a drawn implement may include monitoring a load applied through a drawbar-related component(s) of the work vehicle while the drawn implement is being transported, wherein the drawn implement is located at a transport position relative to a driving surface of the work vehicle such that a ground engaging tool of the drawn implement is located above the driving surface. The method may also include detecting a variation in the monitored load over time, comparing the detected load variation in the monitored load to a predetermined load variance threshold and controlling an operation of at least one of an implement suspension system of the drawn implement or a vehicle suspension system of the work vehicle so as to reduce the detected load variation in the monitored load when the load variation exceeds the predetermined load variance threshold.

A vehicle includes a support structure and a suspension for an oscillatingly supported, rigid axle body. The suspension has a suspension device which is located between the axle body and the support structure and acts in a height direction of the vehicle. The vehicle further includes a plurality of coupling sites and a transverse link extending in a transverse direction of the vehicle. The transverse link is coupled to the support structure via a first link area and via a second link area and a pendulum support to the axle body. The transverse link includes a third link area which, with reference to the pendulum support in the transverse direction of the vehicle, is located opposite the first link area and is flexibly connected with a coupling site of the suspension device.

A vehicle includes a chassis, an axle pivotally coupled to the chassis such that the axle can tilt from side to side relative to the chassis, a tilt-angle sensor configured to detect a tilt angle of the axle relative to the chassis, and steerable hubs carried by the axle. Each hub is configured to rotate about steering axes relative to the axle, and a steering-angle sensor is configured to detect a steering angle of at least one hub relative to the axle. A control system limits a maximum steering angle of the hubs based at least in part on a size of tires or tracks carried by the steerable hubs and the detected tilt angle of the axle. A method includes detecting a tilt angle of the axle relative to the chassis and limiting the maximum steering angle of the hubs.

A control device of a vehicle suspension has a suspension device mounted between a supporting vehicle structure and a vehicle part that is movably mounted. The control device includes a blocking device for blocking a compression or rebound motion occurring at the suspension device in correspondence with a blocking command transmitted to a control unit. The control unit determines a characteristic weight value for a current loading of the suspension device when the blocking command is set and stores it as a pertinent value in a memory unit. The control unit determines a value for the weight when the blocking command is reset in order to cancel a blocking of the suspension device according to the result of a comparison with the value stored in the memory unit.

A system and a method for securing an attachment to work vehicle with a chassis and a suspension are described. A mounting frame with a frame attachment point disposed on a support can be attached to a work vehicle. The suspension can be caused to lower the mounting frame relative to ground by lowering the chassis of the work vehicle. The work vehicle can be maneuvered to align the frame attachment point with a corresponding attachment point on the attachment. The suspension can then be caused to raise the mounting frame relative to ground by raising the chassis of the work vehicle. The frame attachment point can thereby engage the corresponding attachment point on the attachment, as the mounting frame is raised, in order to lift the attachment, with the attachment being thereby supported by the work vehicle solely via the mounting frame.

A work vehicle comprising a vehicle support structure, a vehicle axle, a longitudinal rocking arm attached to the vehicle axle and comprising a first connection locus connected to the vehicle support structure, a sensor configured for detecting movement of the vehicle axle and a vehicle suspension system comprising a vehicle suspension link device comprising a link element comprising a second connection locus connected to the vehicle axle and a third connection locus connected to the vehicle support structure. The work vehicle comprises a sensor link comprising a first attachment point connected to the vehicle axle and a second attachment point connected to the sensor, the first attachment point being located on a virtual straight axis connecting the first connection locus of the longitudinal rocking arm and the second connection locus of the link element.

A vehicle rollover mitigation system may include at least one first sensor to output rollover symptom signals indicating potential rollover of a vehicle, at least one second sensor to output vehicle environment signals indicating a surrounding environment of the vehicle and a controller to output rollover mitigation control signals for mitigating potential rollover of the vehicle based upon the rollover symptom signals and the vehicle environment signals. The vehicle rollover mitigation system may automatically respond to potential rollover by altering a state of an implement coupled to the vehicle.