Abstract: The present disclosure provides a method of automatically controlling ground speed of a vehicle in which the vehicle includes a control system having a controller, a throttle, a brake sensor, and a braking mechanism. The method includes enabling a descent control function in the controller, detecting a change in a vehicle operating condition, determining current vehicle ground speed, establishing a desired vehicle speed based on the current vehicle ground speed, and controlling the braking mechanism to maintain vehicle ground speed at or below the desired vehicle speed.

Abstract: A work vehicle comprises a front frame, a rear frame, an oscillation frame, a slew bearing, and a rolling-element bearing. The slew bearing and the rolling-element bearing allow oscillation between the oscillation frame and the rear frame about a fore-aft axis.

Abstract: A vehicle includes a chassis, an axle, a suspension strut and a sensor assembly. The suspension strut includes a barrel having a lower end and an upper end, and a rod having a lower end and an upper end. The rod lower end is slidably received within the barrel upper end. The barrel lower end is coupled with the axle and the rod upper end is coupled with the chassis. A sensor assembly is coupled between the chassis and the barrel for sensing relative movement between the chassis and the barrel.

Abstract: A method to evaluate a secondary steering system including the steps of lowering the first hydraulic fluid pressure, determining the first hydraulic fluid pressure, sensing a second hydraulic fluid pressure, and comparing the first hydraulic fluid pressure to the second hydraulic fluid pressure. The lowering step includes lowering the first hydraulic fluid pressure provided by the primary steering system power source while the vehicle is traveling at a substantially predetermined speed. The sensing step includes sensing the second hydraulic fluid pressure provided by the secondary steering system power source while an operator of the vehicle is steering the vehicle as the vehicle travels at the predetermined speed. The comparing step includes comparing the first hydraulic fluid pressure to the second hydraulic fluid pressure to determine if the second steering system power source provided fluid to steer the ground-engaging device.

Abstract: A work vehicle comprises a front frame, a rear frame, an oscillation frame, a slew bearing, and a rolling-element bearing. The slew bearing and the rolling-element bearing allow oscillation between the oscillation frame and the rear frame about a fore-aft axis.

Abstract: A work vehicle comprises a front frame, a rear frame, an oscillation frame, a slew bearing, and a rolling-element bearing. The slew bearing and the rolling-element bearing allow oscillation between the oscillation frame and the rear frame about a fore-aft axis.

Abstract: A system and method for providing additional speed retardation capacity is disclosed that utilizes parasitic loads of the vehicle. A vehicle is disclosed that includes a vehicle control system for sensing overspeed conditions, a powertrain, and a parasitic load. When an overspeed condition is detected, the parasitic load that is normally deactivated to improve efficiency is activated to remove power from the powertrain. Temperature sensors can monitor a load temperature and the parasitic loads can be controlled based on the temperature readings. A method is disclosed that includes detecting overspeed conditions, activating parasitic loads to absorb power when an overspeed condition is detected, and deactivating the loads when the overspeed condition ceases. The parasitic loads can be controlled separately or together. The method can include cumulative actions based on greater overspeed conditions.

Abstract: A method to evaluate a secondary steering system including the steps of lowering the first hydraulic fluid pressure, determining the first hydraulic fluid pressure, sensing a second hydraulic fluid pressure, and comparing the first hydraulic fluid pressure to the second hydraulic fluid pressure. The lowering step includes lowering the first hydraulic fluid pressure provided by the primary steering system power source while the vehicle is traveling at a substantially predetermined speed. The sensing step includes sensing the second hydraulic fluid pressure provided by the secondary steering system power source while an operator of the vehicle is steering the vehicle as the vehicle travels at the predetermined speed. The comparing step includes comparing the first hydraulic fluid pressure to the second hydraulic fluid pressure to determine if the second steering system power source provided fluid to steer the ground-engaging device.

Abstract: A vehicle includes a chassis, an axle, a suspension strut and a sensor assembly. The suspension strut includes a barrel having a lower end and an upper end, and a rod having a lower end and an upper end. The rod lower end is slidably received within the barrel upper end. The barrel lower end is coupled with the axle and the rod upper end is coupled with the chassis. A sensor assembly is coupled between the chassis and the barrel for sensing relative movement between the chassis and the barrel.