A working machine includes a driver including a hydraulic actuator to be actuated by a hydraulic fluid, and a controller configured or programmed to change a drive speed of the driver in a drive start period. The controller is configured or programmed to, if a limit value based on which operation of the driver is limited is equal to or more than a threshold, perform a first control in which the controller changes the drive speed of the driver in the drive start period based on the limit value, and if the limit value is less than the threshold, perform a second control in addition to the first control, the second control being a control in which the controller changes a maximum flow rate of the hydraulic fluid to actuate the hydraulic actuator based on the limit value.

A work vehicle includes a traveling vehicle body, a coupler capable of coupling a working device including working implements to the traveling vehicle body, an automatic operation controller configured or programmed to automatically operate the traveling vehicle body based on a planned traveling route, and a work setting controller configured or programmed to set a work start position and a work end position for the working device at different positions based on the working implements.

A suspension module includes a spindle pivotably connected to an axle with a pivot element defining a vertical axis. The spindle has an attachment member and an attachment cap, with outer ends are rigidly interconnected by a pair of lift cylinders. The spindle includes a plate extending between the lift cylinders intermediate the attachment member and cap with the pivot element received between the attachment member and plate. Each lift cylinder has a ram movable within a housing of the lift cylinder. A wheelbox mounts to the wheel and couples with the spindle. First and second strut rods connect the wheelbox with the ram of one of the lift cylinders, and third and fourth strut rods connect the wheelbox with the ram of a second lift cylinder. The strut rods allow the spindle to move relative to the wheelbox while also transferring pivot torque between the wheelbox and the spindle.

An output control system of an agricultural work vehicle includes a controller, a reference indicator communicatively coupled to the controller, and a dial communicatively coupled to the controller. The controller is configured to control power output through an output value range between a minimum output value and a maximum output value based at least in part on a manual input signal, to determine a current setting of the power output, and to adjust the power output from the current setting upon receipt of the manual input signal. The reference indicator is configured to indicate the current setting. Adjustment of an orientation of the dial from an initial position generates the manual input signal.

Disclosed herein is a hydraulic circuit for an agricultural tractor. The hydraulic circuit includes: a hydraulic pump configured to supply hydraulic oil; a horizontal control cylinder configured to control the horizontality of a working machine for a work target surface by using a flow output from the hydraulic pump; a horizontal control valve disposed between the hydraulic pump and the horizontal control cylinder, and configured to control the operation of the horizontal control cylinder; a lifting control valve configured to control the operation of a lifting control cylinder that controls the height of the working machine for the work target surface; a lifting connection valve disposed between the hydraulic pump and the lifting control valve, and configured to selectively connect and block a flow path between the hydraulic pump and the lifting control valve; and a basic hydraulic line forming flow paths.

An agricultural machine includes a controller disposed in communication with a work implement, an output, and an input. Left and right float cylinders are attached to and interconnected with a frame and left and right connecting arms. A desired operating condition from a plurality of predefined settings is then solicited from an operator via the input, wherein the desired operating condition corresponds to a designated pressure setting of the left and right float cylinders. The work implement is operated in a float mode of operation and then commanded to a raised position. The controller automatically determines a maximum pressure and a position that the maximum pressure corresponds to for the left and right float cylinders. The controller automatically modifies the designated pressure setting of the left and right float cylinders in the database based on the maximum pressure and position for each of the left and right float cylinders.

A control system for a tractor that controls an operating condition of an attached implement and includes a pressure sensing device which senses the pressure in the hydraulic drive circuit and provides a signal indicative of the pull force necessary to pull the implement. The control system further includes a control device which receives the pressure signal and a second signal relating to the speed of the tractor and adjusts the position of the implement to a position within a pre-determined range in order to prevent damage to the tractor or implement.

An end effector leveling system for moving an end effector of a work machine with a boom assembly, a plurality of sensors, an input interface, and a controller. The plurality of sensors are configured to sense a current movement speed of the hoist boom, the stick boom, and the end effector. The input interface is configured to receive an end effector target angle input command for movement of the end effector at a constant target angle. The controller receives command signals from the input interface, determines based on the command signals a target tilt actuator velocity for actuating the tilt actuator, and an actual tilt actuator tilt velocity actuator and command the tilt actuator to move such that the end effector moves with an aggregate velocity derived from a weighting function of the target tilt actuator velocity and the actual tilt actuator velocity.

An arrangement for the control of a device interface of an agricultural work vehicle includes a control unit of the work vehicle, which is connected, in a controlling manner, with an external power actuator for the adjustment of the position of the device interface, and a portable computer with input and a processor which has a wireless communication connection with the control unit and on which software was downloaded, which makes possible control of the actuator by the input, via the processor and the control unit.

In one embodiment, a hitch system, comprising: an upper support structure comprising a first pivot mount at one end of the upper support structure and a second pivot mount at the other end of the upper support structure; a lower structural assembly comprising a base having a third pivot mount at one end of the base and a fourth pivot mount at the other end of the base, the lower structural assembly further comprising first and second lift arms pivotably connected respectively to the third and fourth pivot mounts; and first and second actuators each comprising a retractable member and independently operable, the first actuator pivotably connected at one end of the first actuator to the first pivot mount and pivotably connected at the other end of the first actuator to the first lift arm, the second actuator pivotably connected at one end of the second actuator to the second pivot mount and pivotably connected at the other end of the second actuator to the second lift arm.