Work vehicle

A work vehicle that performs an operation while traveling autonomously, comprising:

• a base frame configured to support a wheel;
• a unit frame configured to support an operation unit that performs the operation;
• a link frame capable of changing a relative height of the unit frame with respect to the base frame, the link frame spanning between the base frame and the unit frame;
• a setting unit configured to set an operating height of the operation unit with respect to a working surface of a working field in which the operation is performed, in accordance with operation information indicating an operation target to be subjected to the operation;
• a load sensor configured to detect a load;
• and
• a control unit configured to, if the load sensor detects a load that is greater than or equal to a preset value, stop running the operation unit and roll the wheel in a direction opposite to a direction in which the wheel was rolling when the load sensor detected the load that is greater than or equal to the preset value.

A work vehicle that performs an operation while traveling autonomously, comprising:

• an operation unit configured to perform the operation, the operation unit being mounted in a vehicle body:
• a load calculation unit configured to calculate a load of the operation, the load calculation unit being provided forward of the operation unit relative to the traveling direction in the vehicle body;
• and
• a decision unit configured to decide whether to drive both the load reduction unit and the operation completion unit or to only drive the operation completion unit, based on a result of the calculation performed by the load calculation unit,
• wherein the operation unit includes a load reduction unit configured to perform an operation for reducing a load of the operation whose load is greater than a preset load, and an operation completion unit configured to perform an operation, which is the remainder of the operation, for which the load reduction unit has reduced the load.