A machine configuration system which can realize different works by work machines, industrial machines, agricultural machines, military vehicles, remotely-controlled autonomous, etc. machines, by means of components and equipments having capability of fixation to various locations of the main chassis and main chassis with palette or single type, four-wheel drive and platform with rotation through four wheels.

A work vehicle includes an engine, a hydrostatic transmission, a storage device storing leakage flow rate data defining a relationship between a differential pressure of hydraulic fluid between the first drive circuit and the second drive circuit and a leakage flow rate of the hydraulic fluid in the hydraulic circuit in stalling, and a controller in communication with the storage device. The hydrostatic transmission includes a traveling pump, a hydraulic circuit with first and second drive circuits, and a traveling motor. The controller is configured to determine a target traction force of the work vehicle, determine a target differential pressure that is a target value of the differential pressure from the target traction force, determine the leakage flow rate from the target differential pressure with reference to the leakage flow rate data, and determine a target flow rate of the traveling pump from the leakage flow rate.

A work vehicle includes an engine, a traveling pump driven by the engine, a hydraulic circuit connected to the traveling pump, a traveling motor connected to the traveling pump via the hydraulic circuit, a rotational speed sensor configured to output a signal indicative of engine speed a hydraulic pressure sensor configured to output a signal indicative of hydraulic pressure of the hydraulic circuit, a controller. The controller receives the signals from the rotational speed sensor and the hydraulic pressure sensor. The controller determines whether the engine is in an over-rotation state based on engine speed. The controller determines an upper limit value of a displacement of the traveling pump based on hydraulic pressure of the hydraulic circuit. The controller limits the displacement of the traveling pump to the upper limit value or less upon determining that the engine is in the over-rotation state.

A work vehicle includes an engine, a hydrostatic transmission, a work implement pump driven by the engine, a work implement driven by hydraulic fluid discharged from the work implement pump, an accelerator, a first sensor configured to output a signal indicative of an operation amount of the accelerator, a work implement operating member, a second sensor configured to output a signal indicative of an operation amount of the work implement operating member, and a controller. The controller is configured to receive signals from the first sensor and the second sensor, determine a target input horsepower input to the hydrostatic transmission from the operation amount of the accelerator, and determine a target rotational speed of the engine from the target input horsepower and the operation amount of the work implement operating member.

A loading vehicle is capable of improving work efficiency by adjusting engine rotational speed with high accuracy in accordance with an operation state of the working device. An HST traveling driven wheel loader has an electrically controlled HST pump. A controller is configured to control input torque of the HST pump 31 and solenoid proportional pressure reducing valve is configured to generate control pressure for controlling displacement volume of the pump based on a control signal from the controller. The controller is configured to calculate the displacement volume q of the HST pump based on discharge pressure Pf of a loading hydraulic pump so that maximum input torque Thst of the HST pump decreases as the discharge pressure Pf or input torque of the loading hydraulic pump increases, and output a control signal corresponding to the calculated displacement volume q to the solenoid proportional pressure reducing valve.

A second element fixing clutch is switchable between a released state and an engaged state. In the released state, the second element fixing clutch releases a second element of a planetary gear mechanism so that the second element is rotatable. In the engaged state, the second element fixing clutch fixes the second element of the planetary gear mechanism so that the second element is non-rotatable. A transmission is switchable between at least two modes of a first continuously variable transmission mode, a second continuously variable transmission mode, and a direct mode, by the second element fixing clutch being switched between the released state and the engaged state.

Power machines and loaders having doors with an integrated display that allows the display of information, such as gauges, user inputs, mapped obstacles, boundaries, etc., that allows the operator of the machine to see the displayed information closer to the line of sight with the work area. The display can show augmented reality information about a worksite.

A machine is disclosed. The machine may include a continuously variable transmission, a location or movement module, and a controller. The controller may receive a first signal indicating a transmission output speed for the machine. The controller may receive, from the location or movement module, a second signal indicating location or movement information of the machine. The controller may determine a traction value based on the first signal and the second signal. The controller may determine a rimpull limit value based on the traction value. The controller may provide the rimpull limit value to the continuously variable transmission, wherein the continuously variable transmission is to determine a transmission output torque of the machine based on the rimpull limit value.

An inching system for a vehicle having a hydrostatic transmission and an engine that drives the transmission. The transmission has a pilot pressure port with a pressure of hydraulic fluid at the pilot pressure port controlling a level of power from the transmission, a beginning of draining of the hydraulic fluid from the pilot pressure port defining an inching starting point. The system includes a brake pedal and an electrohydraulic valve coupled to the pilot pressure port of the transmission, the valve being configured to drain the hydraulic fluid at the pilot pressure port. A sensor is coupled to the pedal to detect an input from the operator, the sensor producing a signal indicative of the input from the operator. A controller receives the signal and a speed of the engine. The controller controls the electrohydraulic valve dependent upon the signal and the engine speed so that the inching starting point is unchanged regardless of the speed of the engine.

A tractor in which various main manipulation parts are arranged on the right side of a driver, to allow the manipulation parts and a steering wheel to be reliably grasped with different hands, thus improving workability for the driver; and the various main manipulation parts are arranged within a semi-arc range over which a right arm of the driver turns about his/her right elbow which rests on an arm rest, thus improving workability for the driver and relieving driver fatigue. The tractor includes an operation unit in which a loader manipulation part and a hydraulic manipulation part are arranged near a driver seat disposed at the rear of a steering wheel, the loader manipulation part and the hydraulic manipulation part being arranged within a semi-arc range over which a right arm of a driver turns about his/her right elbow which rests on a right arm rest of the driver seat.