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.

Some implementations can include a zero turn radius utility vehicle that is operated in a standing position by an operator using foot controls provided on the utility vehicle. Accordingly, the operator's hands are free to operate handheld equipment (e.g., a line trimmer, edger, blower, etc.) while the operator controls the utility vehicle via the foot controls. Further, the utility vehicle may have a single third wheel (and no mower deck or other deck or protrusion) extending from the front of the vehicle frame so as to minimize any protrusions to the front of the vehicle, which can permit the operator to work on the ground in front of the utility vehicle using handheld equipment without interference from a mower deck, while remaining in a standing position on the utility vehicle and being able to simultaneously control the utility vehicle (via foot controls) and perform work with handheld equipment.

Some implementations can include a zero turn radius utility vehicle that is operated in a standing position by an operator using foot controls provided on the utility vehicle. Accordingly, the operator's hands are free to operate handheld equipment (e.g., a line trimmer, edger, blower, etc.) while the operator controls the utility vehicle via the foot controls. Further, the utility vehicle may have a single third wheel (and no mower deck or other deck or protrusion) extending from the front of the vehicle frame so as to minimize any protrusions to the front of the vehicle, which can permit the operator to work on the ground in front of the utility vehicle using handheld equipment without interference from a mower deck, while remaining in a standing position on the utility vehicle and being able to simultaneously control the utility vehicle (via foot controls) and perform work with handheld equipment.

A system used to control the orientation of a vehicle's suspension. The system includes a control system receiving input data from a plurality of sensors concerning the relative motion, speed, and orientation of the vehicle. The control system is configured to process the input data and actively control the orientation of the suspension system by selecting a suitable driver speed and tilt angle according to external conditions.

A vehicle includes a plurality of ground-engaging members, a frame assembly supported by the ground-engaging members, and a powertrain assembly supported by the frame. The powertrain assembly includes at least an engine. The vehicle further includes a cooling assembly fluidly coupled to at least the engine and which includes a radiator and at least one fan positioned rearward of the radiator and angled relative to the radiator.

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.

A three-wheeled tilting vehicle is disclosed. The vehicle can include an electronic control system that controls the tilting of the vehicle in higher speed turns for increased stability. The vehicle may also include a traction control system to provide additional stability during higher speed turns.

A three-wheeled tilting vehicle is disclosed. The vehicle can include an electronic control system that controls the tilting of the vehicle in higher speed turns for increased stability. The vehicle may also include a traction control system to provide additional stability during higher speed turns.

A vehicle for placing irrigation pipe, and a method for placing irrigation pipe, is described. The vehicle has a tricycle configuration, with in-line a front steerable drive wheel, a rear drive wheel and a pipe clamp, and an adjustable side idler wheel that provides stability. As the vehicle moves though a field, pulling ever increasing length of pipe, the force provided by the drive wheels increases in proportion.

A vehicle for placing irrigation pipe, and a method for placing irrigation pipe, is described. The vehicle has a tricycle configuration, with in-line a front steerable drive wheel, a rear drive wheel and a pipe clamp, and an adjustable side idler wheel that provides stability. As the vehicle moves though a field, pulling ever increasing length of pipe, the force provided by the drive wheels increases in proportion.