Electric power control device

An electric power control device for controlling electric power consumption of a work vehicle that travels while carrying out a utility work, the control device comprising:

• a first sensor for acquiring an output value of a drive motor as one type of operational state information indicative of an operational state of the drive motor, the drive motor driving a drive wheel for causing the work vehicle to travel;
• a second sensor for acquiring an output value of a mower motor as another type of the operational state information indicative of an operational state of the mower motor, the mower motor driving a mower unit for carrying out the utility work;
• a third sensor for acquiring battery information indicative of a state of a battery which is mounted on the work vehicle, the state of the battery including at least a charged state of the battery and a permissible discharge amount of the battery corresponding to an upper limit less than a maximum possible discharge amount of the battery;
• a memory for storing in advance operational mode information specifying possible operational modes of the work vehicle, including at least a state in which the work vehicle travels without carrying out the utility work, and a state in which the work vehicle travels with carrying out the utility work;
• and
• a controller for changing distributed electric powers of electric power outputted from the battery to be distributed respectively to the drive wheel and the mower unit based on the operational state information regarding the utility work and the traveling, the battery information, and the operational mode information, so that the permissible discharge amount is allocated to the drive wheel and the mower unit at an appropriate ratio, and for instructing the distributed electric powers to the drive motor that controls the drive wheel and the mower motor that controls the mower unit, respectively.