Abstract: The generation processing part generates the target route including a plurality of straight routes arranged at equal interval spacing, based on the reference line which passes through point A and point in the field. In a case of changing the orientation of the target route, the change processing part maintains the interval spacing of each of the plurality of straight routes.

Abstract: A display processing unit causes displays a work screen on an operation device that is used for autonomous travel of a work vehicle. The display processing unit displays travel information on a location of the work vehicle in a display area included in the work screen. A setting processing unit switches between a setting to display travel information on a travel state of the work vehicle in display areas included in the work screen and a setting not to display the travel information in the display areas.

Abstract: A setting processing unit identifies any route generation mode of plural route generation modes, in each of which a target route is generated on the basis of a reference point that is set at a predetermined location in a field. Then, a generation processing unit generates the target route in the identified route generation mode.

Abstract: A setting processing unit sets a set azimuth that is an angle with respect to a reference orientation, and sets a reference point at a predetermined location in a field. A generation processing unit generates a target route on the basis of the set azimuth and a reference line passing through the reference point.

Abstract: A reception processing unit receives an operator's operation on an operation tool that causes a work vehicle to perform a given motion. The motion processing unit causes the work vehicle to perform a motion that corresponds to the operator's operation on the operation tool. A run processing unit causes the work vehicle to automatically run when the operator's first operation on the operation tool is received, and causes the work vehicle to manually run when the operator's second operation on the operation tool is received.

Abstract: A run processing unit causes a work vehicle to automatically run following a target route. A reception processing unit receives, from an operator, a correcting operation that corrects a positional deviation between the work vehicle and the target route, and A offset processing unit prohibits, when the positional deviation is a threshold value or over, the work vehicle correcting action that is in response to the correcting operation.

Abstract: A positioning processing unit positions a position of a work vehicle by a given positioning method based on a satellite signal received from a satellite . A run processing unit causes the work vehicle to automatically run based on position information showing the work vehicle position positioned by the positioning processing unit . Further, the run processing unit prohibits the automatic run, when the work vehicle is ready for the automatic run by a first positioning method, and when the positioning method is switched to a second positioning method which is different in positioning accuracy from the first positioning method.

Abstract: A travel processing unit causes a work vehicle to travel manually on the basis of an operator's manual travel operation. A route-generation processing unit generates a target route, which is a route for the work vehicle to travel automatically, when the operator's route-generation instruction operation to the operation unit is accepted while the work vehicle is traveling manually. A travel processing unit causes the work vehicle to travel automatically along the target route when the operator's automatic-travel start operation to the operation unit is accepted after the route-generation instruction operation.

Abstract: This autonomous traveling system is provided with a path preparation unit, a forward movement control unit, a backward movement control unit, and a turn control unit. The path preparation unit prepares a plurality of straight line paths. The forward movement control unit causes a rice planting machine to execute work and simultaneously causes the rice planting machine to travel along a straight line path by performing at least autonomous steering. After an operator has stopped the rice planting machine traveling toward an edge of a field, the backward movement control unit causes the rice planting machine to travel backward in an autonomous manner or in accordance with operation by the operator, without causing the rice planting machine to execute any work.

Abstract: A work vehicle automated travel system for executing automated travel of a work vehicle along a travel route comprising work routes, in which work is performed by a work unit, and turning routes. Said work vehicle automated travel system is provided with an operation unit. Said operation unit is able to select implementation or non-implementation of an automated work unit control, which detects the beginning of turning of the work vehicle and automatically raises the work unit and disconnects the work clutch of the work unit, and detects completion of the turning of the work unit and automatically lowers the work unit and connects the work clutch. If the beginning of turning is detected while the work vehicle is performing automated travel in a turning route, automated work unit control is implemented regardless of whether implementation or non-implementation of automated work unit control has been selected by the operation unit.

Abstract: This autonomous travel system for a work vehicle is provided with an autonomous travel control unit. The autonomous travel control unit is capable of using a positioning system to cause a work vehicle to travel autonomously along a travel path including a turning path and a work path in which work is performed by a work unit. The work vehicle is provided with a vehicle speed control unit for controlling the vehicle speed and a vehicle speed operation unit for manipulating the vehicle speed. The vehicle speed control unit is capable of executing vehicle speed maintenance control in which even when operating force applied to the vehicle speed operation unit is released, the vehicle speed of the work vehicle corresponding to the operating position of the vehicle speed operation unit prior to release is maintained.

Abstract: A work vehicle includes an engine mounted on a traveling body, a straight-traveling system transmission path including a first stepless transmission device, and a turning system transmission path including a second stepless transmission device, the work vehicle being configured to combine outputs of the straight-traveling system transmission path and an output of the turning system transmission paths to drive left and right traveling units. The work vehicle also includes control sections that control the outputs of the straight-traveling system transmission path and the output of the turning system transmission paths in cooperation with each other, a transmission operation tool that specifies the output of the straight-traveling system transmission path, and a detector that detects the output of the straight-traveling system transmission path.

Abstract: A work vehicle including: an engine mounted on a traveling body; a straight-traveling system transmission path including a first stepless transmission device; and a turning system transmission path including a second stepless transmission device. The work vehicle combines an output of the straight-traveling system transmission path and an output of the turning system transmission path to drive left and right traveling units. The work vehicle further includes: control sections that control the output of the straight-traveling system transmission path and the output of the turning system transmission path in cooperation with each other; and a driving force blocking mechanism that blocks a driving force transfer from the straight-traveling system transmission path. When the driving force transfer from the straight-traveling system transmission path is blocked by the driving force blocking mechanism, the mutually reverse rotation operations of the left and right traveling units is inhibited.

Abstract: A work vehicle equipped with: a straight-traveling system transmission path including a first stepless transmission device, a turning system transmission path including a second stepless transmission device, left and right traveling units that receive a driving force from an engine and move the work vehicle in forward and in reverse, and a brake operation tool that actuates a brake mechanism. The output of the straight-traveling system transmission path and the output of the turning system transmission path are combined to drive the traveling units. When the operation amount to the brake operation tool exceeds a first predetermined amount, a control section blocks the driving force output from the first stepless transmission device, and at the same time, sets a swash plate of the second stepless transmission device in a neutral state.

Abstract: A work vehicle including: an engine mounted on a traveling body; a straight-traveling system transmission path including a first stepless transmission device; and a turning system transmission path including a second stepless transmission device, The work vehicle combines an output of the straight-traveling system transmission path and an output of the turning system transmission path to drive left and right traveling units. The work vehicle further includes: control sections that control the output of the straight-traveling system transmission path and the output of the turning system transmission path in cooperation with each other; and a driving force blocking mechanism that blocks a driving force transfer from the straight-traveling system transmission path. When the driving force transfer from the straight-traveling system transmission path is blocked by the driving force blocking mechanism, the mutually reverse rotation operations of the left and right traveling units is inhibited.

Abstract: A work vehicle equipped with: a straight-traveling system transmission path including a first stepless transmission device (17); a turning system transmission path including a second stepless transmission device (13); left and right traveling units (3) that receive a driving force from an engine (5) and move the work vehicle in forward and in reverse; and a brake operation tool (35) that actuates a brake mechanism (751). The output of the straight-traveling system transmission path and the output of the turning system transmission path are combined to drive the traveling units (3). When the operation amount to the brake operation tool (35) exceeds a first predetermined amount, a control section (813, 814) blocks the driving force output from the first stepless transmission device (17), and at the same time, sets a swash plate of the second stepless transmission device (13) in a neutral state.

Abstract: A work vehicle including an engine (5) mounted on a traveling body (2), a straight-traveling system transmission path including a first stepless transmission device (17), and a turning system transmission path including a second stepless transmission device (13), the work vehicle being configured to combine outputs of the straight-traveling and turning system transmission paths to drive left and right traveling units (3). The work vehicle also includes control sections (813, 814) that control the outputs of the straight-traveling and turning system transmission paths in cooperation with each other, a transmission operation tool (822) that specifies the output of the straight-traveling system transmission path, and a detector (823) that detects the output of the straight-traveling system transmission path. The control sections select one of an instruction value from the transmission operation tool and an actually measured value from the detector and set the output of the turning system transmission path.

Abstract: A working vehicle is structured to maintain a ride quality for an operator on a control seat. Provided are a travel machine body which mounts an engine, front wheels on the machine body, a track frame on the machine body, right and left travel crawlers installed on the track frame, a rear axle which transmits a rotating force to the travel crawler, and oscillation supporting point shafts which support the track frame on the machine body so as to freely oscillate. In the case that the rear axle and the oscillation supporting point shafts are provided so as to be spaced, the oscillation supporting point shafts are arranged just below an axle case to which the rear axle is pivoted, and the track frame is connected to the axle case via link members provided in the oscillation supporting point shafts.

Abstract: A working vehicle is structured to maintain a ride quality for an operator on a control seat. Provided are a travel machine body which mounts an engine, front wheels on the machine body, a track frame on the machine body, right and left travel crawlers installed on the track frame, a rear axle which transmits a rotating force to the travel crawler, and oscillation supporting point shafts which support the track frame on the machine body so as to freely oscillate. In the case that the rear axle and the oscillation supporting point shafts are provided so as to be spaced, the oscillation supporting point shafts are arranged just below an axle case to which the rear axle is pivoted, and the track frame is connected to the axle case via link members provided in the oscillation supporting point shafts.