A wheel-mounting assembly for a utility vehicle includes a chassis and a wheel support assembly mounted to respective outboard ends of first and second telescopic axle assemblies. The first and second telescopic axle assemblies are laterally spaced from one another and are each secured to the chassis. The first and second telescopic axle assemblies each include a respective actuator arranged to control extension and retraction thereof for steering and track-width control.

Some embodiments are directed to an adjustment assembly for changing width of a vehicle including at least one pair of wheels, where the adjustment assembly is embedded in the vehicle and is connectable to a pair of front, middle or rear wheels thereof. The adjustment assembly includes, inter alia: a foldable unit connectable to the pair of wheels of the vehicle, configured for changing its overall length over a predefined axis Y connecting the centers of the pair of wheels, for adjusting a distance between the pair of wheels it connects to; and a tilting unit operatively associated with the pair of wheels of the vehicle to which the foldable unit connects. The tilting unit is configured for changing angular positioning of the pair of wheels in respect to the Y axis, during driving of the vehicle when folded or unfolded.

A pair of wheels coupled together by an adjustable axle mechanism. A right straight-line linkage coupled to a right wheel and a left straight-line linkage coupled to a left wheel. The right straight-line linkage and the left straight-line linkage are connected together and each move independently from each other between an extended position and a retracted position.

A vehicle having a front axle with a pair of front wheels having a track width adjustable between a wide track and a narrow track; a rear axle with at least one rear wheel; steering means configured to control the turn of the rear wheel when the front wheels are set to the narrow track; track width control means configured to change the track width of the front wheels and to change the wheel base between the front axle and the rear axle such that for the wide track of the front wheels the wheel base is longer than for the narrow track of the front wheels; a locking mechanism configured to lock the track width; wherein each of the front wheels is connected to a dedicated front wheel motor for driving that front wheel and to a dedicated front wheel brake for breaking that front wheel.

Vehicles are disclosed which have a lower center of gravity than existing all-terrain, amphibious, and unmanned ground vehicles due to the location of propulsion units and other vehicle components inside the wheels of the vehicle. The vehicles can climb over large obstacles yet are also able to corner at high speeds. The vehicles can be configured for direct manual operation or operation by remote control, and can also be configured for a wide variety of missions.

A method of regulating the operation of a vehicle axle system, the vehicle axle system including at least one adjustable axle having at least one axle cylinder and a steering assembly including at least one steering cylinder connected thereto, an axle management system including a microcontroller having a microprocessor, a memory, and a sensor. The method includes receiving, by the axle management system, at least one desired axle position and at least one measured axle position, from at least one sensor. The method also includes determining, if the measured axle position is within a predetermined tolerance threshold of the desired axle position and regulating the position of the at least one adjustable axle.

An agricultural machine such as a high clearance sprayer is provided with a frame capable of supporting wheels at a variable tread width. The frame includes a pair of cross members, both of which have slider receivers. The machine also includes a first axle slider for a first side and a second axle slider for a second side. The machine may also have a slider to frame connection arrangement that includes a reduced friction zone at the slider receivers that facilitate telescopic movement of the axle sliders. The slider to frame connection may also have at least one fixed slider wear pad in a fixed position within the reduced friction zone and at least one movable slider wear pad movably arranged within the reduced friction zone.

Vehicles are disclosed which have a lower center of gravity than existing all-terrain, amphibious, and unmanned ground vehicles due to the location of propulsion units and other vehicle components inside the wheels of the vehicle. The vehicles can climb over large obstacles yet are also able to corner at high speeds. The vehicles can be configured for direct manual operation or operation by remote control, and can also be configured for a wide variety of missions.

A working machine comprising a chassis; first and second elongate support members, each elongate support member being pivotally coupled to the chassis at a respective pivot point; a first wheel assembly coupled to the first elongate support member and a second wheel assembly coupled to the second elongate support member; a first linear actuator coupled to the first elongate support member and a second linear actuator coupled to the second elongate support member, wherein the elongate support members are movable by operation of the actuators between a stowed configuration and a deployed configuration. A distance between the first and second wheel assemblies is greater in the deployed configuration than in the stowed configuration. The first and second linear actuators are pivotally coupled to the chassis along a common pivot axis.

Vehicles are disclosed that are configured to carry loads in a stabilized manner, such that the load is maintained in a substantially constant position or orientation relative to a predetermined reference point or frame even as the vehicle moves. A stabilization controller in such a vehicle receives information about movement of the vehicle relative to the reference point or plane from one or more sensors on the vehicle, and uses the information to control one or more movable objects by which the load is secured to the vehicle so as to maintain a relatively constant relationship between the load and the reference point or plane.