ON-VEHICLE POWER SUPPLY SYSTEM

摘要

PROBLEM TO BE SOLVED: To prevent electric corrosion from occurring on an output terminal of a vehicle battery for supplying electric power to a control device that activates an inverter.SOLUTION: An on-vehicle power supply system includes: a main switch 45 which supplies starting current from a vehicle battery 41 to a vehicle control module 49 in an on-state and interrupts supply of the starting current in an off-state; and a door switch 29 which causes a room lamp 31 to light and allows connection between the main switch 45 and the vehicle battery 41 when a back door is opened. The vehicle control module 49 activates an inverter 35 when the main switch 45 is in the on-state.