| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a power supply control device for vehicle that enables effective utilization of power stored in a capacitor, while suppressing the deterioration of the capacitor. <P>SOLUTION: This device includes: battery voltage detection means 4 for detecting the voltage of a battery 5 that supplies power to electrical load on a vehicle; capacitor voltage detection means 3 for detecting the voltage of a capacitor 1 that supplies power to the battery 5; and an ECU 7 that sets a remaining time based on the ambient temperature relating to the deterioration of the capacitor 1, and transfers the power stored in the capacitor 1 to the battery 5 via a DC/DC converter 10, while maintaining the capacitor voltage not less than the battery voltage until the remaining time elapses after the ignition switch is turned off. After the elapse of remaining time, the capacitor 1 is connected to a consumption load and discharged. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
