On-vehicle electric power control system, control device, and aggregated control device

An on-vehicle electric power control system comprising:

• a power supply device;
• a control device connected to the power supply device via a first power supply line;
• and
• one or a plurality of loads connected to the control device via a second power supply line, wherein
• the control device includes:
• wiring resistance acquiring means for acquiring wiring resistance values of the first power supply line and the second power supply line;
• current acquiring means for acquiring a first current value supplied to the control device via the first power supply line and a second current value supplied to the load via the second power supply line;
• voltage drop amount calculating means for calculating voltage drop amounts in the first power supply line and the second power supply line based on the wiring resistance value acquired by the wiring resistance acquiring means, the first current value acquired by the current acquiring means, and the second current value acquired by the current acquiring means;
• correction value determining means for determining a correction value for correcting an output voltage of the power supply device based on the voltage drop amount calculated by the voltage drop amount calculating means;
• and
• correction request output means for outputting a correction request indicating the correction value determined by the correction value determining means.