POWER SUPPLY CONTROLLER FOR VEHICLE WITH FUNCTION OF PREVENTING RUNNING DOWN OF BATTERY

摘要

A power supply controller for preventing a battery from running down when lamps are left on or a door is left incompletely closed. A lamp main relay control section (2b) turns a lamp main relay (3) off when an ignition switch (1a) is off and the state of a door is unchanged for a time longer than a time T1 preset by a timing means Tm1 and interrupts the power supply to a room lamp (5), D,P,R seat courtesy lamps (6a, 6b, 6c), and the like, thus preventing running down of a battery. A courtesy/room lamp control section (2c) turns off the room lamp (3) and the courtesy lamp of an open door when the door is not closed for a time T2 preset by a timing means Tm2 after it is opened, thus preventing running down of the battery. An alarm signal may be generated before the transition to the control for preventing running down of the battery or during the control operation.