Kubota Corporation

Fumiya Yoshimura

Takanori Morimoto

Kotaro Yamaguchi

Ken Sakuta

Kenji Tamatani

Koichi Shintani

Shinnosuke Ishikawa

Takafumi Morishita

Takuya Nishikubo

Tomohiro Kinoshita

Yuji Okuyama

Yusuke Takahashi

Tsuyoshi Harada

Sho Watanabe

Keisuke Takeda

Junki Kuroishi

Ryo Kuboshima

An agricultural work assistance system includes a display to display a map representing an agricultural field, and a controller configured or programmed to define or function as an area setter to set a first area and a second area located inward of the first area in the map displayed by the display, and a route creator to create, in at least one of the first area or the second area, a travel route along which an agricultural machine is to travel. The route creator is configured or programmed to set at least a portion of the travel route as an automatic steering route on which the agricultural machine is to be automatically steered and a travel speed of the agricultural machine is to be changed manually.

Agricultural work assistance system, agricultural work assistance apparatus, and agricultural machine

A working machine includes a machine body, a steering device capable of changing an orientation of the machine body, a first wheel on the machine body, a second wheel on the machine body and separated from the first wheel in a machine-body width direction, a rotational difference generator to cause a rotational difference between the first and second wheels and that is a braking device, and a controller configured or programmed to include a first control unit to set a steering angle of the steering device based on a planned traveling route, and a second control unit to control the rotational difference generator based on the planned traveling route to cause a rotational difference between the first and second wheels. Based on the planned traveling route, the second control unit is configured or programmed to cause the braking device to perform setting about braking of either the first or second wheels by performing pumping control.

Working machine

A cultivated land work vehicle includes a vehicle position computer, a travel controller to control travel of the body based on a vehicle position and target routes, and a replenishment mode executor to execute a replenishment travel mode to replenish the cultivated land work vehicle with agricultural material, during U-turn transition travel. In a first replenishment travel mode, reverse travel into the boundary area is performed after a starting point of the next travel route his reached, and forward travel to the starting point of the next travel route his performed after replenishment work is complete. In a second replenishment travel mode, reverse travel into the boundary area is performed before the starting point of the next travel route is reached, and forward travel to the starting point of the next travel route is performed after the replenishment work is complete.

Cultivated land work vehicle and agricultural material replenishment method

A travel line creation system for an agricultural machine, includes a position acquirer to acquire position measurement points for the agricultural machine, a display, a first generator to associate the position measurement points with a field displayed by the display and generate creation points on the field by shifting the position measurement points inward in an agricultural field, a second generator to create a travel line including a loop which passes through the creation points and calculate each of virtual lines by connecting together adjacent ones of the creation points, and a setter to extract a pair of virtual lines adjacent to each other and extending in different directions and set, as a work point regarding a breakpoint in work performed by a working device, one of the creation points shared by the extracted pair of virtual lines.

Travel line creation system for agricultural machine

An automatic travel system includes a prohibition boundary line setter to set a prohibition boundary line beyond which the vehicle is prohibited from entering, a turning circle setter to set a virtual turning circle as a target route for entry turning travel to enter a subsequent travel route, a transition turning travel controller to control tangent following travel using a vehicle body reference point that is calculated during travel to the virtual turning circle as a target orientation, and the entry turning travel using the virtual turning circle as a turning target route, an interference boundary line detector to detect the prohibition boundary line that is present in a moving direction of the vehicle in the tangent following travel, as an interference boundary line, and an interference avoidance travel controller to control travel for avoiding interference with the interference boundary line.

Automatic travel system and automatic travel method

A travel control system includes a permission unit that permits outermost periphery automatic traveling if predetermined permission conditions are satisfied. The permission conditions include a first condition and a second condition. The first condition is that a reference value corresponding to a working width Wof a work deviceis larger than a lateral width Wof the work device. The second condition is that the reference value is larger than a threshold value determined by a threshold value determination unit. The threshold value determination unit determines the threshold value based on a reference distance Dbetween a front end position of a work vehicleand a reference position SP at which the work deviceis switched from a working state to a non-working state.

Travel control system

A working machine includes a machine body, a lifting device to link a working device to the machine body, the lifting device being capable of moving up and down with the working device between a grounding state in which the working device is in contact with a ground and an ungrounding state in which the working device is out of contact with the ground, and an automatic travel controller to cause the machine body to perform automatic travel according to a planned travel route. The automatic travel controller includes a lifting controller to control the lifting device to move up with the working device from the grounding state to the ungrounding state, and cause the machine body to turn or travel rearward after the lifting controller controls the lifting device to move up with the working device from the grounding state to the ungrounding state.

An agricultural machine includes a vehicle body, an obstacle detector to detect obstacles, an autonomous travel controller to perform autonomous travel of the vehicle body, the autonomous travel controller being configured or programmed to, when performing the autonomous travel, stop the vehicle body based on detection information about an obstacle detected by the obstacle detector, and a mode switch to switch a mode during the autonomous travel in an agricultural field between an effective mode in which the stopping of the vehicle body based on the detection information is allowed and an ineffective mode in which the stopping of the vehicle body based on the detection information is not allowed.

Agricultural machine

A working machine includes a machine body capable of traveling, a position detector to detect a position of the machine body, and a controller to control the machine body based on the position of the machine body detected by the position detector and a planned travel route. The planned travel route includes a straight section on which the machine body travels straight, and the controller includes a threshold setter to set a threshold according to work, and causes the machine body to perform a recovery movement to make a deviation between the position of the machine body detected by the position detector and the planned travel route less than the threshold when the machine body is at a start point of the straight section or is about to enter the start point of the straight section.

A work vehicle includes a vehicle body including wheels, a controller to cause the vehicle body to perform automatic travel along a travel route set in advance, a driver seat mounted on the vehicle body, a driver seat protective body provided around the driver seat, first obstacle detectors provided at side portions of the driver seat protective body, and capable of detecting an obstacle; and second obstacle detectors provided at positions differing from positions of the first obstacle detectors in a front-back direction, and capable of detecting an obstacle. At a time of start of the automatic travel, the controller is configured or programmed to put each first obstacle detector in a detection state of detecting an obstacle, and, during automatic travel after the start of the automatic travel, the controller is configured or programmed to put each first obstacle detector in a non-detection state of not detecting the obstacle.

Work vehicle

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.

Work vehicle and work assistance apparatus for work vehicle

A working vehicle includes a vehicle body, a linkage provided on the vehicle body to link a working device, a controller to cause the vehicle body to perform automatic travel, a rear obstacle detector to detect obstacles behind the vehicle body, and a setting changer to change rear setting information regarding obstacle detection performed by the rear obstacle detector.

Working vehicle

In an agricultural machine, a route creator creates a planned traveling route for a traveling vehicle body in a work area where a working device works using a material. An area setter sets, outside the work area, a replenishment area to replenish the material. A charge amount acquirer acquires a charge amount of the material. A remaining amount calculator calculates a remaining amount of the material based on the charge amount acquired and a material consumption of the material consumed by the work. A position setter sets a replenishment position to replenish the material in the replenishment area set by the area setter based on the remaining amount calculated by the remaining amount calculator. A position changer changes the replenishment position when a change reception switch receives change of the replenishment position. A display displays the changed replenishment position.

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Sakai, Japan

Fumiya Yoshimura