ELECTRIC POWER SUPPLY DEVICE

摘要

An electric power supply device includes a first battery electrically connected to each of a plurality of load instruments mounted on a vehicle and supplying electric power to each of the load instruments, a second battery electrically connected to the first battery and each of the load instruments via a switch and capable of supplying electric power to each of the load instruments, and an ECU configured to cut off electrical connection between the second battery and each of the load instruments by turning OFF the switch on the condition that a high-load instrument as one of the load instruments is not in operation.

主权项

1. An electric power supply device for a vehicle, the vehicle including a plurality of load instruments, the load instruments including a high-load instrument, the high-load instrument being a load instrument with reference electric power consumption equal to or greater than an electric power threshold, the electric power supply device comprising:
a first battery electrically connected to each of the load instruments and supplying electric power to each of the load instruments; a switch; a second battery electrically connected to the first battery and each of the load instruments via the switch and supplying electric power to each of the load instruments; and an ECU configured to control the switch to be OFF when the high-load instrument is not in operation.