Work vehicle

A work vehicle comprising:

• a driving wheel motor for structured to drive at least one driving wheel;
• a working implement-related motor for structured to drive at least one working implement;
• at least one controller;
• at least one operator sensor for structured to detect an amount of operation of at least one operator;
• a mode instruction device structured to instruct switching between a working travelling cooperative mode and at least one other drive mode based on a switching operation of a user;
• and
• a working implement start switch structured to instruct start of the working implement-related motor based on a starting operation of the user,
• wherein the at least one controller comprises:
• a drive control unit structured to control operation of the driving wheel motor based on a signal from the at least one operator sensor;
• a vehicle speed calculation unit structured to calculate a vehicle speed of the work vehicle;
• and
• a working implement-related control unit structured to control operation of the working implement-related motor;
• wherein the mode instruction device is structured to instruct switching between the working travelling cooperative mode, an economy mode and a user mode based on the switching operation of the user, the working travelling cooperative mode and the user mode, each of which sets a working implement-related target rotational speed employed when the working implement-related motor is driven;
• wherein, when switching to the working travelling cooperative mode is performed by the mode instruction device, the working implement-related control unit sets a relationship between a target vehicle speed and the working implement-related target rotational speed to a working travelling cooperative relationship in which the working implement-related target rotational speed of the working implement-related motor is increased according to the increase in the target vehicle speed of the work vehicle at least in a predetermined vehicle speed range of the work vehicle, and controls the working implement-related motor to implement the working travelling cooperative mode;
• wherein, when switching to the economy mode is performed by the mode instruction device, and the working implement start switch is turned on, the drive control unit changes allowable maximum speed of the target vehicle speed to an economic maximum speed that is lower than when switching to the working travelling cooperative mode is performed and controls rotational speed of the driving wheel motor, and the working implement-related control unit controls the working implement-related motor to rotate at a constant first working implement-related rotational speed set in advance, and
• wherein, when switching to the user mode is performed by the mode instruction device, and the working implement start switch is turned on, the at least one controller controls the working implement-related motor to rotate at a constant second working implement-related rotational speed set in advance.