Vehicle power supply device, a vehicle power control method, vehicle power supply relay circuit and vehicle aggregation wiring apparatus used for the power control unit, the control unit used in the vehicle wiring device aggregation

摘要

A power supply line is wired in the loop form from the battery power source, and a power supply relay circuit is installed in the middle of the power supply line, and power is supplied from the power supply relay circuit to the electrical load connected to the terminal unit of the aggregate wiring. This can reduce not only the wire for the control signal but also the power supply wires. The power supply relay circuit may serve as a terminal unit.