Abstract: The control method for a sprayer is a control method for a sprayer including a spray device. This control method includes: automatically operating the spray device; and only while a cancellation condition is satisfied, canceling automatic operation of the spray device to manually operate the spray device according to a user's manipulation, and thereby enabling operation check of the spray device.

Abstract: The automatic traveling method includes: causing a sprayer 1 to travel automatically along a target route in a field; executing temporary stop processing; and executing stop reservation processing. The temporary stop processing is processing to stop the sprayer at a current position in a mode in which travel of the sprayer can be resumed in the case where a temporary stop condition is satisfied during automatic travel of the sprayer. The stop reservation processing is processing to cause the sprayer to travel and thereafter stop the sprayer in a state where the travel of the sprayer can be resumed in the case where a stop reservation condition is satisfied during the automatic travel of the sprayer.

Abstract: A display section displays information related to a plurality of fields. The operating section accepts a selection operation for one of the plurality of fields displayed on the display section. If the operating section accepts a selection operation for the one field, and if the position information acquired by the positioning unit corresponds to a position within the one field, the control section controls the display section to display a start button for starting the operation of the fertilizing apparatus. If an operation to the start button is accepted by the operating section, the control section starts the operation of the fertilizing apparatus, based on the work information for the one field stored in the storage section.

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: An ECU of an engine performs control to keep a constant engine speed when a load factor is equal to or less than a predetermined value, and to reduce and correct the engine speed in accordance with an increase in the load factor when the load factor exceeds the predetermined value. The ECU is provided with a reference droop control correction amount calculation unit (36), a correction amount adjustment map storage unit, and a post-adjustment correction amount calculation unit (38). The reference droop control correction amount calculation unit (36) obtains an engine speed reference reduction correction amount NBD that is increased at a constant rate in accordance with the increase in the load factor from the predetermined value. The correction amount adjustment map storage unit stores, as a correction amount adjustment map (111), a subtraction factor that varies depending on the load factor.

Abstract: A working vehicle with an HST in which over-rotation of a hydraulic pump in the HST or the pump input shaft thereof is prevented when a main clutch is disconnected during a run. When a main clutch connection/disconnection detection means detects the disconnection state of the main clutch during a run, a control means judges whether a vehicle speed detected by a vehicle speed detection means is at least a set speed or not, and if the vehicle speed is at least the set speed, the movable swash plate of the hydraulic pump in an HST is controlled to sustain it at the current inclination angle.

Abstract: A working vehicle with an HST in which over-rotation of a hydraulic pump in the HST or the pump input shaft thereof is prevented when a main clutch is disconnected during a run. When a main clutch connection/disconnection detection means (112) detects (S2) the disconnection state of the main clutch (22) during a run, a control means (110) judges (S3) whether a vehicle speed detected by a vehicle speed detection means (116) is at least a set speed or not, and if the vehicle speed is at least the set speed, the movable swash plate (55) of the hydraulic pump (51) in an HST (50) is controlled to sustain it at the current inclination angle (S4).