A control system for a work vehicle includes a power source with an engine and at least one motor configured to generate power; a transmission including a plurality of clutches configured for selective engagement to transfer the power to drive an output shaft of a powertrain of the work vehicle; and a controller coupled to the power source and the transmission. The controller has a processor and memory architecture configured to: initiate a transition for the transmission between a first transmission mode and a second transmission mode at a first shift point associated with an engine throttle shift function; determine a current engine speed; and generate and execute an engine speed command for the engine such that a commanded engine speed is a function of the current engine speed in accordance with the engine throttle shift function upon the transition of the transmission at the first shift point.

A power transmission device includes a first shaft provided to be rotatable around a first rotational axis of the hydraulic pump driven by the engine. A second shaft is rotatable about the first rotational axis to rotate the power take shaft. A clutch is rotatable about a second rotational axis that is substantially parallel to the first rotational axis and is vertically below the first rotational axis. The clutch has a first rotating portion and a second rotating portion arranged to face each other in the second rotational axis. A first rotating portion is connectable to and separable from the second rotating portion. The first rotation transmission mechanism is configured to transmit rotation of the first shaft to the first rotating portion. A second rotation transmission mechanism is configured to transmit rotation of the second rotating portion to the second shaft.

A work vehicle capable of traveling on a public road and in a working field includes: a public road traveling determination unit configured to generate vehicle body position information regarding a position at which the vehicle body is located, determine based on the vehicle body position information whether or not the vehicle body is traveling on the public road, and output a determination result; and a vehicle speed limiter configured to limit a vehicle speed in accordance with the determination result.

An electrified tractor includes a vehicle body, an electric motor, a battery, an inverter configured to control input-output electric power of the battery, a wheel for traveling, and a control device. On condition that the electrified tractor travels inside a restriction area determined in advance as one condition, the control device controls the inverter such that the input-output electric power of the battery falls within a specific electric power range determined in advance. The control device determines whether or not there is a possibility that the electrified tractor moves from the restriction area to outside the restriction area. In a case where an affirmative determination is made in a determination process during a restriction process, the control device expands the specific electric power range as compared with a case where a negative determination is made in the determination process.

A tractor according includes a running vehicle body, a floor provided on the running vehicle body and serving as a floor surface of an operation part in which a driver is located, a floor bracket configured to support the floor, a fuel tank provided below the floor, and a pedal configured to move the running vehicle body forward or backward and having pivot shafts provided on the floor bracket between the floor and the fuel tank.

In a tractor, a radiator is arranged on one front-rear side relative to an engine. A cooling fan is provided between the radiator and an engine. A fan drive belt is wound around a fan support shaft and around an output shaft of the engine extending below the fan support shaft. A compressor is located above the output shaft and is supported to the engine at a position offset to one lateral side of the engine relative to the fan support shaft. A compressor drive belt is wound around the output shaft and a compressor drive shaft. The compressor drive belt is located on a side where the compressor is located relative to the fan support shaft, when viewed in a front-rear direction.

Described herein are methods and systems for controlling differential wheel speeds of multi-independent-wheel vehicles, such as four-wheel-drive electric tractors (4WD-ETs). Specifically, a method comprises determining a target speed for each wheel of the vehicle based on at least the steering input. The linear travel speeds (corresponding to these target speeds) of any two wheels are different when the vehicle turns (steering input deviates from a no-steering baseline) or the same when the vehicle travels in a straight line (steering input is at the no-steering baseline). Each target wheel speed is then used to control the rotational speed of the corresponding electric motor, which independently drives one of the vehicle's wheels. This process of determining the target wheel speeds and independently controlling all electric motors is frequently repeated such that the vehicle can be propelled through the turn at the desired speed with minimal wheel slip.

A method for controlling a vehicle (100) includes reading-in measurement data about a surface (6) of a substrate (2) lying ahead of the vehicle (100) in its travel direction (F), where the surface contains a ground-level obstacle (4) and recognizing the ground-level obstacle (4) from the measurement data. The method also includes determining a movement vector (V4) of the recognized ground-level obstacle (4) in a vehicle-associated coordinate system on the basis of the measurement data read in and determining a movement vector (V1) of the vehicle (100) in a coordinate system superordinate relative to the vehicle-associated coordinate system. The method further includes checking whether the ground-level obstacle (4) is a dynamic ground-level obstacle (4) in the superordinate coordinate system and emitting a control signal for controlling an operational safety system (30) of the vehicle (100) as a function of the result of the check. Also disclosed is a control unit (200) for carrying out a method of that type and a vehicle (100) with a control unit (200) of that type.

A portal assembly has a housing for attachment to the vehicle axle and enclosing a gear assembly having an input gear linked to the axle shaft for rotating around a first rotational axis and an output gear positioned within a second lower rotational axis that converts rotation of the input gear to rotation of the output gear. An output axle is driven by the output gear for transferring rotational force to a unit bearing located outside of the housing. The unit bearing is attached to and transfers rotational force to a wheel hub.

A work vehicle includes a vehicle body, a positioning unit that detects a position of the vehicle body based on a signal sent from a positioning satellite, a support configuration portion installed on the vehicle body, an installing stay to which the positioning unit is fixed, and a base stay fixed to the support configuration portion. One of the installing stay and the base stay has a protruding piece portion. Another of the installing stay and the base stay has a hole portion into and with which the protruding piece portion is inserted and engaged.