Patent ID: 6268663
Filing Date: 2001-07-31
Classification: H02J

Abstract:
In an electric source control device for a vehicle having an ignition switch, a door switch which is switched on or off in response to opening and closing of doors, a door lamp which is turned on or off in response to the door switch, an interior dome lamp which is turned on or off in response to the door switch or selectively turned on or off by manual operation, and a map lamp which is selectively turned on or off by manual operation, comprising:a unit for preventing battery death which is electrically connected to each of the ignition switch, the door switch, the door lamp, the interior dome lamp and the map lamp, further comprising:a judging part for detecting an on or off condition of the ignition switch and the door switch;a first timer for measuring the lapse of time after being reset by the opening of any of the doors in case the ignition switch is off;a first control part for turning the door lamp and the interior dome lamp off in response to the output of the first timer when a first predetermined time period has lapsed, and for outputting a first alarm signal, based on a signal from the judging part when any of the doors is opened or closed after the interior dome lamp is turned off with the first control part; andan alarm unit which is electrically connected to the unit for preventing battery death, wherein the unit for preventing battery death operates the alarm unit based on the first alarm signal.