A header assembly for an agricultural harvesting machine comprises a first frame assembly, a second frame assembly that supports a cutter, and is pivotable relative to the first frame assembly, a float cylinder coupled between the first frame assembly and the second frame assembly, an accumulator, and fluidic circuitry that fluidically couples the accumulator to the float cylinder. The fluidic circuitry is configured to provide a first flow of pressurized fluid under pressure to the float cylinder, so the float cylinder exerts a float force on the second frame assembly, and based on a control input that corresponds to a lowering operation of the header assembly, provide a restricted flow of fluid, that is restricted relative to the first flow, between the float cylinder and the accumulator.

A mobile working machine, in particular an agricultural device such as a self-propelled sprayer, comprising a structure which is hydraulically supported with respect to an undercarriage by means of cylinders (2, 4) having a piston chamber (6) and a rod chamber (8), wherein a switching device (18, 22, 36, 38) is provided which, in a switching position, fluidically connects the piston chamber (6) of a cylinder (2, 4) to the rod chamber (8) of another cylinder (2, 4), and vice versa, characterised in that, as part of the switching device, first valves (18, 22) and second valves (36, 38) are connected on the fluid-conveying connection (12, 14) between the piston chamber (6) of the one cylinder (2, 4) and the rod chamber (8) of the other cylinder (2, 4), the first valves (18, 22) each being connected on the input side to the piston chamber (6) and to a first hydraulic accumulator (28, 30) and the second valves (36, 38) being connected on the input side to the rod chamber (8) and on the output side to a second hydraulic accumulator (32, 34).

A mobile working machine, in particular an agricultural device such as a self-propelled sprayer, comprising a structure which is hydraulically supported with respect to an undercarriage by means of cylinders (2, 4) having a piston chamber (6) and a rod chamber (8), wherein a switching device (18, 22, 36, 38) is provided which, in a switching position, fluidically connects the piston chamber (6) of a cylinder (2, 4) to the rod chamber (8) of another cylinder (2, 4), and vice versa, characterised in that, as part of the switching device, first valves (18, 22) and second valves (36, 38) are connected on the fluid-conveying connection (12, 14) between the piston chamber (6) of the one cylinder (2, 4) and the rod chamber (8) of the other cylinder (2, 4), the first valves (18, 22) each being connected on the input side to the piston chamber (6) and to a first hydraulic accumulator (28, 30) and the second valves (36, 38) being connected on the input side to the rod chamber (8) and on the output side to a second hydraulic accumulator (32, 34).

An agricultural implement includes a plurality of ground-engaging tools configured to modify a surface configuration of an agricultural field and a hydraulically-controlled subsystem configured to modify an operating angle of the plurality of ground-engaging tools. The agricultural implement also includes a sensor coupled to the hydraulically-controlled subsystem configured to generate sensor signals indicative of a current operating angle of the plurality of ground-engaging tools. The agricultural implement also includes an implement control system configured to receive the sensor signals from the sensor to determine the current operating angle of the plurality of ground-engaging tools, and, upon determining the current operating angle is to be changed to a new operating angle, generate control signals for the hydraulically-controlled subsystem to modify the operating angle of the plurality of ground-engaging tools from the current operating angle to the new operating angle.

An agricultural implement includes a plurality of ground-engaging tools configured to modify a surface configuration of an agricultural field and a hydraulically-controlled subsystem configured to modify an operating angle of the plurality of ground-engaging tools. The agricultural implement also includes a sensor coupled to the hydraulically-controlled subsystem configured to generate sensor signals indicative of a current operating angle of the plurality of ground-engaging tools. The agricultural implement also includes an implement control system configured to receive the sensor signals from the sensor to determine the current operating angle of the plurality of ground-engaging tools, and, upon determining the current operating angle is to be changed to a new operating angle, generate control signals for the hydraulically-controlled subsystem to modify the operating angle of the plurality of ground-engaging tools from the current operating angle to the new operating angle.

The invention relates to an agricultural machine intended to be coupled to a tractor vehicle and comprising a work unit connected to a chassis relative to which the work unit can be moved, the machine being able to take up a work configuration in which the work unit rests at least partially on the ground and a transport configuration in which the work unit is raised from the ground. The machine comprises a lightening device having at least one lightening cylinder connected to the chassis on one side and to the work unit on the other side, the lightening cylinder being able to transfer, in the work configuration, at least some of the weight of the work unit onto the chassis.

An agricultural implement operating on a field surface with growing crop plants comprises a plurality of divider mechanisms mounted in front of the implement wheels. Each divider mechanism comprises a divider member comprising a diversion member tapering laterally from a front end of the divider member, operative to push the crop plants away from a path of the wheel, and mounted to the implement by a parallel link assembly. An actuator is connected to the parallel link assembly and moves the divider member up and down. A control is operative to activate each actuator, and a sensor system senses a divider height of each divider member above the field surface. The sensor system is connected to the control such that the control is operative to specify a desired divider height for each divider member.

A hose assembly for a hydraulic system is shown. The hose assembly includes a first hose that fluidly couples a pump with a hydraulic actuator using a first port. The first hose includes a first electronic device that provides identification information for the first hose. The hose assembly further includes a second hose that fluidly couples the hydraulic actuator with a reservoir tank using a second port. The second hose includes a second electronic device that provides identification information for the second hose. The hose assembly further includes a controller that receives a first connection signal and a second connection signal. The controller is further configured to determine that the first hose has fluidly coupled using the first port based on the first connection signal and determine that the second hose has fluidly coupled using the second port based on the second connection signal.

An agricultural implement includes a plurality of ground-engaging tools configured to modify a surface configuration of an agricultural field and a hydraulically-controlled subsystem configured to modify an operating angle of the plurality of ground-engaging tools. The agricultural implement also includes a sensor coupled to the hydraulically-controlled subsystem configured to generate sensor signals indicative of a current operating angle of the plurality of ground-engaging tools. The agricultural implement also includes an implement control system configured to receive the sensor signals from the sensor to determine the current operating angle of the plurality of ground-engaging tools, and, upon determining the current operating angle is to be changed to a new operating angle, generate control signals for the hydraulically-controlled subsystem to modify the operating angle of the plurality of ground-engaging tools from the current operating angle to the new operating angle.

An agricultural implement includes a plurality of ground-engaging tools configured to modify a surface configuration of an agricultural field and a hydraulically-controlled subsystem configured to modify an operating angle of the plurality of ground-engaging tools. The agricultural implement also includes a sensor coupled to the hydraulically-controlled subsystem configured to generate sensor signals indicative of a current operating angle of the plurality of ground-engaging tools. The agricultural implement also includes an implement control system configured to receive the sensor signals from the sensor to determine the current operating angle of the plurality of ground-engaging tools, and, upon determining the current operating angle is to be changed to a new operating angle, generate control signals for the hydraulically-controlled subsystem to modify the operating angle of the plurality of ground-engaging tools from the current operating angle to the new operating angle.