Autonomous operation method, work vehicle, and autonomous operation system

An autonomous travel method for a work vehicle capable of switching between a manual travel mode to travel based on operation of an operation tool including a turning operation tool and an autonomous traveling mode to travel based on a predetermined travel route, having a turning instruction process for turning the work vehicle in response to the turning operation of the turning operating tool provided on the work vehicle,

• an autonomous travel control process for executing the autonomous travel mode and controlling the travel of the work vehicle based on the travel route,
• wherein when the turning operating tool is operated during execution of the autonomous travel mode, the autonomous travel mode is switched from the autonomous travel mode to the manual travel mode without stopping the vehicle,
• and an autonomous operation method, wherein the controlling includes:
• performing the autonomous travel mode when a speed changing tool to instruct a forward-and-backward speed change of the work vehicle is positioned in a forward travel speed change area;
• switching to the manual travel mode and performing manual forward travel based on the position of the speed changing tool in the forward travel speed change area, when the turning operation tool is operated during the autonomous travel mode in a forward travel direction;
• and
• maintaining travel in a backward travel direction, regardless of the position of the speed changing tool in the forward travel speed change area, when the turning operation tool is operated during the autonomous travel mode in the backward travel direction.

An autonomous operation method:

• wherein a work vehicle capable of switching between a manual travel mode in which the work vehicle travels based on the operation of an operating tool including a turning operating tool, and an autonomous travel mode in which the work vehicle travels based on a predetermined travel route,
• having a turning instruction process for turning the work vehicle in response to the turning operation of the turning operating tool provided on the work vehicle,
• and an autonomous travel control process for executing the autonomous travel mode and controlling the travel of the work vehicle based on the travel route,
• when the turning operating tool is operated during execution of the autonomous travel mode, the autonomous travel mode is switched from the autonomous travel mode to the manual driving mode without stopping the vehicle,
• performing the autonomous travel mode when a speed changing tool to instruct a forward-and-backward speed change of the work vehicle is positioned in a forward travel speed change area;
• maintaining travel through the autonomous travel mode in a forward travel direction based on the position of the speed changing tool in the forward travel speed change area, when the speed changing tool is operated in the forward travel speed change area during the autonomous travel mode in the forward travel direction;
• and
• switching to a manual travel with limitation mode and performing manual travel with limitation toward the forward travel direction with an acceleration more gently than an acceleration in the case where a forward travel set speed is directly set to the work vehicle that is performing backward travel through the manual travel mode, based on operation of the turning operation tool and the position of the speed changing tool in the forward travel speed change area, when the speed changing tool is operated in the forward travel speed change area during the autonomous travel mode in a backward travel direction.