A wheel loader configured to reduce the traveling distance required for a raise and run operation, and reduce fuel consumption includes: an engine 3; a torque converter 41; a forward and reverse switch 62; a stepping amount sensor 610; an operation amount sensor 73; and a controller 5. The controller 5 determines whether a specific condition for specifying an operation of the lift arm 21 in an upper direction during forward travel of the vehicle body, on the basis of a forward and reverse switching signal, the stepping amount on the accelerator pedal 61, and a pilot pressure Ti pertaining to the lifting operation amount for the lift arm 21. When the specific condition is satisfied, the vehicle speed is limited by reducing the maximum rotational speed of the engine 3 in response to increase in the pilot pressure Ti.

A hydraulic system includes a first supply line connecting a boom control valve and a bottom side of a boom cylinder, a second supply line connecting the boom control valve and a rod side of the boom cylinder, a leveling switch valve having: a first operating position allowing a leveling operation of a working tool; and a first stopping position allowing the leveling operation to stop, a ride controller including: a ride-control switch valve connected to a branched fluid line branched from the first supply line; and an accumulator configured to perform an anti-vibrating operation for suppressing a pressure fluctuation of the boom cylinder, and a drain fluid line to discharge operation fluid in a downstream section extending from the leveling switch valve to the rod side of the boom cylinder in the second supply line when the leveling switch valve is switched to the first stopping position.

The invention relates to a method of controlling a working machine. The working machine comprises a first power source arranged to drive a mechanical driveline, a hydraulic system comprising a hydraulic pump and an actuator arranged to be driven to move by the hydraulic pump, where the hydraulic pump is separated from, or disconnectable from, the first power source. The method comprises determining whether the working machine is in an increased response mode. The method further comprises increasing a response of the hydraulic system upon determining that the working machine is in the increased response mode.

A working machine comprises an operation member for operating a hydraulic device via a control valve. An oscillation calculator acquires a specific value corresponding to a feature representing oscillation of the operation member when the feature appears in variation of an control signal output according to an operation amount of the operation member within one of a sequence of predetermined periods, and calculates an evaluation value representing a degree of oscillation of the operation member by adding up the specific value or values obtained within one or more of the predetermined periods. A control signal generator generates a control signal for controlling the control valve based on the operation signal. The control signal generator decreases a value of the control signal per a unit value of the operation signal as the evaluation value gradually increases with the elapse of one or more of the sequence of the predetermined periods.

The present disclosure provides systems and methods for power machines, including a mini-loader that includes a frame, an operator station positioned toward a rear end of the frame and configured to be used by an operator who is behind or on the rear end of the frame, and a power source positioned toward a front end of the frame.

A hydraulic system may include a first actuator to control a first linkage member, a second actuator to control a second linkage member, a first primary hydraulic circuit and a first secondary hydraulic circuit that include the first actuator, a second primary hydraulic circuit and a second secondary hydraulic circuit that include the second actuator, a first pump to cause fluid to flow through the first primary hydraulic circuit and the second secondary hydraulic circuit, a second pump to cause fluid to flow through the second primary hydraulic circuit and the first secondary hydraulic circuit, and a controller. The controller may be configured to determine that an operator assistance mode is enabled, and cause closing of a first valve that controls fluid flow through the first secondary hydraulic circuit and a second valve that controls fluid flow through the second secondary hydraulic circuit.

A linkage arrangement for a working machine, the linkage arrangement being connectable to a work implement. The linkage arrangement includes a single boom lifting arm extending along a longitudinal centre axis and being configured to lift the work implement, and a tilting arrangement having two hydraulically driven arms arranged in parallel and being configured to tilt the work implement relative the single boom lifting arm. Each one of the two hydraulically driven arms is hydraulically driven by a separate hydraulic tilting cylinder.

Disclosed are various embodiments for a front bucket loader apparatus. In one aspect, a front bucket loader apparatus for operating in low overhead space environments is disclosed. The front bucket loader comprises a front bucket with a bottom plate with a front edge, an opposing back edge, a left edge and an opposing right edge. The front bucket further has a left side wall attached to the left side of the bottom plate and a right side wall attached to the right side of the bottom plate. Further, it is configured with a top support bracket attached to the left side wall and to the right side wall. Further, the front bucket has a pivotable serpentine back wall, the pivotable serpentine back wall having an upper portion and a lower portion, the upper portion being supported by the top support bracket and the lower portion of the pivotable serpentine back wall configured for engaging the bottom plate of the front bucket. Lastly the front bucket has a slatted rear mount directly opposing the pivotable serpentine back wall. The front bucket loader further comprises a hydraulic assembly attached to the slatted rear mount of the front bucket and operatively connected to the pivotable serpentine back wall of the front bucket.

The disclosure relates to a method for damping a movably mounted attachment part of a machine, wherein the attachment part is movable by means of a hydraulic cylinder, wherein the hydraulic cylinder is actuated via a hydraulic pump, comprising: receiving a measured value of a pressure (P) in a load-side chamber of the hydraulic cylinder during a measurement phase, and controlling the hydraulic pump to adjust the pressure in the load-side chamber of the hydraulic cylinder to the measured value as a setpoint value during operation of the machine for damping the movably mounted attachment part.

A shovel includes a cabin, a display device attached to the cabin, and a main pump. An internal combustion is configured to drive the main pump. An information acquiring device is provided. A controller is configured to calculate an amount of work based on the information acquired by the information acquiring device and to cause the display device to display the amount of work per predetermined period of time in a chronological order.